Bug 109811

Summary: [HP Compaq dc7800 Small Form Factor PC] suspend/resume failure
Product: Drivers Reporter: Urs Fleisch (urs_fleisch)
Component: Video(DRI - Intel)Assignee: intel-gfx-bugs (intel-gfx-bugs)
Status: RESOLVED INVALID    
Severity: normal CC: aaron.lu, intel-gfx-bugs
Priority: P1    
Hardware: Intel   
OS: Linux   
Kernel Version: 4.4.0-040400rc5-generic #201512140221 Subsystem:
Regression: No Bisected commit-id:
Attachments: dmesg after resume when started with nomodeset and after pm_test core

Description Urs Fleisch 2015-12-22 17:21:08 UTC 
Created attachment 198021 [details]
dmesg after resume when started with nomodeset and after pm_test core

[1.] One line summary of the problem:
[HP Compaq dc7800 Small Form Factor PC] suspend/resume failure

[2.] Full description of the problem/report:
Suspend to RAM fails, the PC will not wake up again. It only works if I suspend to disk before, then I can suspend to RAM afterwards (as many time as needed) until the PC is rebooted again.

[3.] Keywords (i.e., modules, networking, kernel):
[4.] Kernel version (from /proc/version):
Linux version 4.4.0-040400rc5-generic (kernel@gloin) (gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu2) ) #201512140221 SMP Mon Dec 14 02:23:36 UTC 2015

[5.] Output of Oops.. message (if applicable) with symbolic information 
     resolved (see Documentation/oops-tracing.txt)
[6.] A small shell script or example program which triggers the
     problem (if possible)
echo mem >/sys/power/state

[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)
Linux dc7800 4.4.0-040400rc5-generic #201512140221 SMP Mon Dec 14 02:23:36 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
 
GNU C			5.2.1
GNU Make		4.0
Binutils		2.25.1
Util-linux		2.26.2
Mount			2.26.2
Module-init-tools	21
E2fsprogs		1.42.12
PPP			2.4.6
Linux C Library		2.21
Dynamic linker (ldd)	2.21
Linux C++ Library	6.0.21
Procps			3.3.9
Net-tools		1.60
Kbd			1.15.5
Console-tools		1.15.5
Sh-utils		8.23
Udev			225
Wireless-tools		30
Modules Loaded		8250_fintek autofs4 binfmt_misc bridge coretemp drm drm_kms_helper e1000e fb_sys_fops fjes floppy gpio_ich hid hid_generic hp_wmi i2c_algo_bit i915 input_leds ip6table_filter ip6_tables ip6t_REJECT ip6t_rt iptable_filter ip_tables ipt_REJECT irqbypass kvm kvm_intel llc lp lpc_ich mac_hid mei mei_me nf_conntrack nf_conntrack_broadcast nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack_ipv6 nf_conntrack_netbios_ns nf_defrag_ipv4 nf_defrag_ipv6 nf_nat nf_nat_ftp nf_reject_ipv4 nf_reject_ipv6 parport parport_pc parport_serial pata_acpi pci_stub ppdev pps_core psmouse ptp serio_raw shpchp snd snd_hda_codec snd_hda_codec_analog snd_hda_codec_generic snd_hda_core snd_hda_intel snd_hwdep snd_pcm snd_rawmidi snd_seq snd_seq_device snd_seq_midi snd_seq_midi_event snd_timer soundcore sparse_keymap stp syscopyarea sysfillrect sysimgblt tpm_infineon usbhid vboxdrv vboxnetadp vboxnetflt vboxpci video wmi x_tables xt_addrtype xt_conntrack xt_hl xt_limit xt_tcpudp

[7.2.] Processor information (from /proc/cpuinfo):
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
stepping	: 11
microcode	: 0xba
cpu MHz		: 1998.000
cache size	: 4096 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm tpr_shadow vnmi flexpriority
bugs		:
bogomips	: 5320.15
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
stepping	: 11
microcode	: 0xba
cpu MHz		: 1998.000
cache size	: 4096 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm tpr_shadow vnmi flexpriority
bugs		:
bogomips	: 5320.15
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

[7.3.] Module information (from /proc/modules):
pci_stub 16384 1 - Live 0x0000000000000000
vboxpci 24576 0 - Live 0x0000000000000000 (OE)
vboxnetadp 28672 0 - Live 0x0000000000000000 (OE)
vboxnetflt 28672 0 - Live 0x0000000000000000 (OE)
vboxdrv 454656 3 vboxpci,vboxnetadp,vboxnetflt, Live 0x0000000000000000 (OE)
bridge 126976 0 - Live 0x0000000000000000
stp 16384 1 bridge, Live 0x0000000000000000
llc 16384 2 bridge,stp, Live 0x0000000000000000
binfmt_misc 20480 1 - Live 0x0000000000000000
snd_hda_codec_analog 16384 1 - Live 0x0000000000000000
snd_hda_codec_generic 77824 1 snd_hda_codec_analog, Live 0x0000000000000000
coretemp 16384 0 - Live 0x0000000000000000
kvm_intel 167936 0 - Live 0x0000000000000000
snd_hda_intel 36864 1 - Live 0x0000000000000000
snd_hda_codec 135168 3 snd_hda_codec_analog,snd_hda_codec_generic,snd_hda_intel, Live 0x0000000000000000
kvm 532480 1 kvm_intel, Live 0x0000000000000000
snd_hda_core 65536 4 snd_hda_codec_analog,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec, Live 0x0000000000000000
snd_hwdep 16384 1 snd_hda_codec, Live 0x0000000000000000
hp_wmi 16384 0 - Live 0x0000000000000000
snd_pcm 102400 3 snd_hda_intel,snd_hda_codec,snd_hda_core, Live 0x0000000000000000
gpio_ich 16384 0 - Live 0x0000000000000000
sparse_keymap 16384 1 hp_wmi, Live 0x0000000000000000
snd_seq_midi 16384 0 - Live 0x0000000000000000
snd_seq_midi_event 16384 1 snd_seq_midi, Live 0x0000000000000000
irqbypass 16384 1 kvm, Live 0x0000000000000000
snd_rawmidi 32768 1 snd_seq_midi, Live 0x0000000000000000
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000
input_leds 16384 0 - Live 0x0000000000000000
snd_seq_device 16384 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x0000000000000000
serio_raw 16384 0 - Live 0x0000000000000000
snd_timer 32768 2 snd_pcm,snd_seq, Live 0x0000000000000000
snd 81920 12 snd_hda_codec_analog,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_seq_device,snd_timer, Live 0x0000000000000000
soundcore 16384 1 snd, Live 0x0000000000000000
lpc_ich 24576 0 - Live 0x0000000000000000
parport_serial 16384 0 - Live 0x0000000000000000
8250_fintek 16384 0 - Live 0x0000000000000000
mei_me 32768 0 - Live 0x0000000000000000
shpchp 36864 0 - Live 0x0000000000000000
mei 98304 1 mei_me, Live 0x0000000000000000
tpm_infineon 20480 0 - Live 0x0000000000000000
mac_hid 16384 0 - Live 0x0000000000000000
ip6t_REJECT 16384 1 - Live 0x0000000000000000
nf_reject_ipv6 16384 1 ip6t_REJECT, Live 0x0000000000000000
xt_hl 16384 22 - Live 0x0000000000000000
ip6t_rt 16384 3 - Live 0x0000000000000000
nf_conntrack_ipv6 20480 7 - Live 0x0000000000000000
nf_defrag_ipv6 36864 1 nf_conntrack_ipv6, Live 0x0000000000000000
ipt_REJECT 16384 1 - Live 0x0000000000000000
nf_reject_ipv4 16384 1 ipt_REJECT, Live 0x0000000000000000
xt_limit 16384 1 - Live 0x0000000000000000
xt_tcpudp 16384 24 - Live 0x0000000000000000
xt_addrtype 16384 4 - Live 0x0000000000000000
nf_conntrack_ipv4 16384 7 - Live 0x0000000000000000
nf_defrag_ipv4 16384 1 nf_conntrack_ipv4, Live 0x0000000000000000
xt_conntrack 16384 14 - Live 0x0000000000000000
ip6table_filter 16384 1 - Live 0x0000000000000000
ip6_tables 28672 1 ip6table_filter, Live 0x0000000000000000
nf_conntrack_netbios_ns 16384 0 - Live 0x0000000000000000
nf_conntrack_broadcast 16384 1 nf_conntrack_netbios_ns, Live 0x0000000000000000
nf_nat_ftp 16384 0 - Live 0x0000000000000000
nf_nat 24576 1 nf_nat_ftp, Live 0x0000000000000000
nf_conntrack_ftp 20480 1 nf_nat_ftp, Live 0x0000000000000000
nf_conntrack 106496 8 nf_conntrack_ipv6,nf_conntrack_ipv4,xt_conntrack,nf_conntrack_netbios_ns,nf_conntrack_broadcast,nf_nat_ftp,nf_nat,nf_conntrack_ftp, Live 0x0000000000000000
iptable_filter 16384 1 - Live 0x0000000000000000
ip_tables 28672 1 iptable_filter, Live 0x0000000000000000
x_tables 36864 12 ip6t_REJECT,xt_hl,ip6t_rt,ipt_REJECT,xt_limit,xt_tcpudp,xt_addrtype,xt_conntrack,ip6table_filter,ip6_tables,iptable_filter,ip_tables, Live 0x0000000000000000
parport_pc 32768 2 parport_serial, Live 0x0000000000000000
ppdev 20480 0 - Live 0x0000000000000000
lp 20480 0 - Live 0x0000000000000000
parport 49152 3 parport_pc,ppdev,lp, Live 0x0000000000000000
autofs4 40960 2 - Live 0x0000000000000000
hid_generic 16384 0 - Live 0x0000000000000000
psmouse 126976 0 - Live 0x0000000000000000
i915 1204224 2 - Live 0x0000000000000000
usbhid 49152 0 - Live 0x0000000000000000
hid 118784 2 hid_generic,usbhid, Live 0x0000000000000000
i2c_algo_bit 16384 1 i915, Live 0x0000000000000000
drm_kms_helper 135168 1 i915, Live 0x0000000000000000
floppy 73728 0 - Live 0x0000000000000000
syscopyarea 16384 1 drm_kms_helper, Live 0x0000000000000000
sysfillrect 16384 1 drm_kms_helper, Live 0x0000000000000000
sysimgblt 16384 1 drm_kms_helper, Live 0x0000000000000000
video 40960 1 i915, Live 0x0000000000000000
fb_sys_fops 16384 1 drm_kms_helper, Live 0x0000000000000000
fjes 28672 0 - Live 0x0000000000000000
wmi 20480 1 hp_wmi, Live 0x0000000000000000
drm 360448 4 i915,drm_kms_helper, Live 0x0000000000000000
pata_acpi 16384 0 - Live 0x0000000000000000
e1000e 237568 0 - Live 0x0000000000000000
ptp 20480 1 e1000e, Live 0x0000000000000000
pps_core 20480 1 ptp, Live 0x0000000000000000

[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
urs:~$ cat /proc/ioports 
0000-0cf7 : PCI Bus 0000:00
  0000-001f : dma1
  0020-0021 : pic1
  0040-0043 : timer0
  0050-0053 : timer1
  0060-0060 : keyboard
  0061-0061 : PNP0800:00
  0064-0064 : keyboard
  0070-0071 : rtc0
  0080-008f : dma page reg
  00a0-00a1 : pic2
  00c0-00df : dma2
  00f0-00ff : PNP0C04:00
    00f0-00ff : fpu
  0170-0177 : 0000:00:1f.2
    0170-0177 : ata_piix
  01f0-01f7 : 0000:00:1f.2
    01f0-01f7 : ata_piix
  0376-0376 : 0000:00:1f.2
    0376-0376 : ata_piix
  0378-037a : parport0
  037b-037f : parport0
  03c0-03df : vesafb
  03f2-03f2 : floppy
  03f4-03f5 : floppy
  03f6-03f6 : 0000:00:1f.2
    03f6-03f6 : ata_piix
  03f7-03f7 : floppy
  03f8-03ff : serial
  0400-041f : pnp 00:08
  0420-043f : pnp 00:08
  0440-045f : pnp 00:08
  0460-047f : pnp 00:08
    0460-0461 : ACPI PM1b_CNT_BLK
  0480-048f : pnp 00:08
  04d0-04d1 : pnp 00:09
  0778-077a : parport0
0cf8-0cff : PCI conf1
1000-2fff : PCI Bus 0000:00
  1000-1fff : PCI Bus 0000:07
    1100-110f : 0000:07:09.0
    1110-1117 : 0000:07:09.0
      1110-1117 : serial
    1118-111f : 0000:07:09.0
      1118-111f : serial
    1120-1127 : 0000:07:09.0
    1128-112f : 0000:07:09.0
    1130-1137 : 0000:07:09.0
  2100-211f : 0000:00:19.0
  2120-213f : 0000:00:1a.0
    2120-213f : uhci_hcd
  2140-215f : 0000:00:1a.1
    2140-215f : uhci_hcd
  2160-217f : 0000:00:1a.2
    2160-217f : uhci_hcd
  2180-219f : 0000:00:1d.0
    2180-219f : uhci_hcd
  21a0-21bf : 0000:00:1d.1
    21a0-21bf : uhci_hcd
  21e0-21ef : 0000:00:03.2
    21e0-21ef : ata_generic
  21f0-21ff : 0000:00:1f.2
    21f0-21ff : ata_piix
  2200-220f : 0000:00:1f.2
    2200-220f : ata_piix
  2210-221f : 0000:00:1f.5
    2210-221f : ata_piix
  2220-222f : 0000:00:1f.5
    2220-222f : ata_piix
  2230-2237 : 0000:00:02.0
  2238-223f : 0000:00:03.2
    2238-223f : ata_generic
  2240-2247 : 0000:00:03.2
    2240-2247 : ata_generic
  2248-224f : 0000:00:03.3
    2248-224f : serial
  2260-2267 : 0000:00:1f.5
    2260-2267 : ata_piix
  2268-226f : 0000:00:1f.5
    2268-226f : ata_piix
  2270-2273 : 0000:00:03.2
    2270-2273 : ata_generic
  2274-2277 : 0000:00:03.2
    2274-2277 : ata_generic
  2280-2283 : 0000:00:1f.5
    2280-2283 : ata_piix
  2284-2287 : 0000:00:1f.5
    2284-2287 : ata_piix
3000-6fff : PCI Bus 0000:00
  3000-3fff : PCI Bus 0000:20
  4000-4fff : PCI Bus 0000:30
7000-afff : PCI Bus 0000:00
b000-ffff : PCI Bus 0000:00
  f800-f803 : ACPI PM1a_EVT_BLK
  f804-f805 : ACPI PM1a_CNT_BLK
  f808-f80b : ACPI PM_TMR
  f810-f815 : ACPI CPU throttle
  f820-f83f : pnp 00:08
    f820-f82f : ACPI GPE0_BLK
      f828-f82f : gpio_ich.1.auto
    f830-f833 : iTCO_wdt.0.auto
  f840-f85f : pnp 00:08
  f860-f87f : iTCO_wdt.0.auto
    f860-f87f : pnp 00:08
  fa00-fa3f : gpio_ich.1.auto
    fa00-fa3f : 0000:00:1f.0
      fa00-fa3f : pnp 00:08
        fa00-fa2f : gpio_ich
        fa30-fa3f : gpio_ich
  fc00-fc7f : pnp 00:08
  fc80-fcff : pnp 00:08
  fe00-fe7f : pnp 00:08
  fe80-feff : pnp 00:08
urs:~$ cat /proc/iomem
00000000-00000fff : reserved
00001000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000c7fff : Video ROM
000cd400-000e3fff : pnp 00:0a
000e8000-000fffff : reserved
  000f0000-000fffff : System ROM
00100000-defafdff : System RAM
  01000000-018013ff : Kernel code
  01801400-01f3ba3f : Kernel data
  020b2000-021f4fff : Kernel bss
defafe00-defb1e9f : ACPI Non-volatile Storage
defb1ea0-dfffffff : reserved
  df800000-dfffffff : Graphics Stolen Memory
e0000000-f3ffffff : PCI Bus 0000:00
  e0000000-efffffff : 0000:00:02.0
  f0000000-f00fffff : 0000:00:02.0
  f0100000-f017ffff : 0000:00:02.0
  f0180000-f019ffff : 0000:00:19.0
    f0180000-f019ffff : e1000e
  f01a0000-f01a3fff : 0000:00:1b.0
    f01a0000-f01a3fff : ICH HD audio
  f01a4000-f01a4fff : 0000:00:03.3
  f01a5000-f01a5fff : 0000:00:19.0
    f01a5000-f01a5fff : e1000e
  f01a6000-f01a63ff : 0000:00:1a.7
    f01a6000-f01a63ff : ehci_hcd
  f01a6400-f01a67ff : 0000:00:1d.7
    f01a6400-f01a67ff : ehci_hcd
  f01a6900-f01a690f : 0000:00:03.0
    f01a6900-f01a690f : mei_me
f4000000-f7ffffff : PCI MMCONFIG 0000 [bus 00-3f]
  f4000000-f7ffffff : reserved
    f4000000-f7ffffff : pnp 00:0a
f8000000-febfffff : PCI Bus 0000:00
  f8000000-f81fffff : PCI Bus 0000:20
  f8200000-f83fffff : PCI Bus 0000:20
  f8400000-f85fffff : PCI Bus 0000:30
  f8600000-f87fffff : PCI Bus 0000:30
  f8800000-f8800fff : Intel Flush Page
  f8804000-f8807fff : i915 MCHBAR
fec00000-fed3ffff : reserved
  fec00000-fec00fff : PNP0003:00
    fec00000-fec003ff : IOAPIC 0
  fec01000-fecfffff : pnp 00:0a
  fed00000-fed003ff : HPET 0
    fed00000-fed003ff : PNP0103:00
  fed00400-fed3ffff : pnp 00:0a
    fed1f410-fed1f414 : iTCO_wdt.0.auto
fed40000-fed44fff : PCI Bus 0000:00
fed45000-ffffffff : reserved
  fee00000-fee00fff : Local APIC
100000000-15bffffff : System RAM

[7.5.] PCI information ('lspci -vvv' as root)
00:00.0 Host bridge: Intel Corporation 82Q35 Express DRAM Controller (rev 02)
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: [e0] Vendor Specific Information: Len=0b <?>
	Kernel driver in use: agpgart-intel

00:02.0 VGA compatible controller: Intel Corporation 82Q35 Express Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 27
	Region 0: Memory at f0100000 (32-bit, non-prefetchable) [size=512K]
	Region 1: I/O ports at 2230 [size=8]
	Region 2: Memory at e0000000 (32-bit, prefetchable) [size=256M]
	Region 3: Memory at f0000000 (32-bit, non-prefetchable) [size=1M]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: fee0300c  Data: 4122
	Capabilities: [d0] Power Management version 2
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Kernel driver in use: i915

00:03.0 Communication controller: Intel Corporation 82Q35 Express MEI Controller (rev 02)
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 28
	Region 0: Memory at f01a6900 (64-bit, non-prefetchable) [size=16]
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0300c  Data: 4152
	Kernel driver in use: mei_me

00:03.2 IDE interface: Intel Corporation 82Q35 Express PT IDER Controller (rev 02) (prog-if 85 [Master SecO PriO])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 18
	Region 0: I/O ports at 2238 [size=8]
	Region 1: I/O ports at 2270 [size=4]
	Region 2: I/O ports at 2240 [size=8]
	Region 3: I/O ports at 2274 [size=4]
	Region 4: I/O ports at 21e0 [size=16]
	Capabilities: [c8] Power Management version 3
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Kernel driver in use: ata_generic

00:03.3 Serial controller: Intel Corporation 82Q35 Express Serial KT Controller (rev 02) (prog-if 02 [16550])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 17
	Region 0: I/O ports at 2248 [size=8]
	Region 1: Memory at f01a4000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: [c8] Power Management version 3
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Kernel driver in use: serial

00:19.0 Ethernet controller: Intel Corporation 82566DM-2 Gigabit Network Connection (rev 02)
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 26
	Region 0: Memory at f0180000 (32-bit, non-prefetchable) [size=128K]
	Region 1: Memory at f01a5000 (32-bit, non-prefetchable) [size=4K]
	Region 2: I/O ports at 2100 [size=32]
	Capabilities: [c8] Power Management version 2
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
	Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0100c  Data: 41a2
	Capabilities: [e0] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: e1000e

00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02) (prog-if 00 [UHCI])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 20
	Region 4: I/O ports at 2120 [size=32]
	Capabilities: [50] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: uhci_hcd

00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02) (prog-if 00 [UHCI])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 21
	Region 4: I/O ports at 2140 [size=32]
	Capabilities: [50] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: uhci_hcd

00:1a.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02) (prog-if 00 [UHCI])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 22
	Region 4: I/O ports at 2160 [size=32]
	Capabilities: [50] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: uhci_hcd

00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02) (prog-if 20 [EHCI])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 22
	Region 0: Memory at f01a6000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Debug port: BAR=1 offset=00a0
	Capabilities: [98] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: ehci-pci

00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 29
	Region 0: Memory at f01a0000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0300c  Data: 4162
	Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0
			ExtTag- RBE-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
	Capabilities: [100 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
			Status:	NegoPending- InProgress-
		VC1:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=1 ArbSelect=Fixed TC/VC=80
			Status:	NegoPending- InProgress-
	Capabilities: [130 v1] Root Complex Link
		Desc:	PortNumber=0f ComponentID=02 EltType=Config
		Link0:	Desc:	TargetPort=00 TargetComponent=02 AssocRCRB- LinkType=MemMapped LinkValid+
			Addr:	00000000fed1c000
	Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin ? routed to IRQ 24
	Bus: primary=00, secondary=20, subordinate=20, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: f8000000-f81fffff
	Prefetchable memory behind bridge: 00000000f8200000-00000000f83fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [40] Express (v1) Root Port (Slot+), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0
			ExtTag- RBE+
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
		LnkCap:	Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <4us
			ClockPM- Surprise- LLActRep+ BwNot- ASPMOptComp-
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- CommClk-
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
			Slot #2, PowerLimit 10.000W; Interlock- NoCompl-
		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
			Changed: MRL- PresDet- LinkState-
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: 00000000  Data: 0000
	Capabilities: [90] Subsystem: Hewlett-Packard Company Device 2818
	Capabilities: [a0] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [100 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed+ WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
			Status:	NegoPending- InProgress-
	Capabilities: [180 v1] Root Complex Link
		Desc:	PortNumber=01 ComponentID=02 EltType=Config
		Link0:	Desc:	TargetPort=00 TargetComponent=02 AssocRCRB- LinkType=MemMapped LinkValid+
			Addr:	00000000fed1c000
	Kernel driver in use: pcieport

00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 25
	Bus: primary=00, secondary=30, subordinate=30, sec-latency=0
	I/O behind bridge: 00004000-00004fff
	Memory behind bridge: f8400000-f85fffff
	Prefetchable memory behind bridge: 00000000f8600000-00000000f87fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [40] Express (v1) Root Port (Slot+), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0
			ExtTag- RBE+
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
		LnkCap:	Port #2, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <4us
			ClockPM- Surprise- LLActRep+ BwNot- ASPMOptComp-
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- CommClk-
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
			Slot #0, PowerLimit 0.000W; Interlock- NoCompl-
		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
			Changed: MRL- PresDet- LinkState-
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: 00000000  Data: 0000
	Capabilities: [90] Subsystem: Hewlett-Packard Company Device 2818
	Capabilities: [a0] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [100 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed+ WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
			Status:	NegoPending- InProgress-
	Capabilities: [180 v1] Root Complex Link
		Desc:	PortNumber=02 ComponentID=02 EltType=Config
		Link0:	Desc:	TargetPort=00 TargetComponent=02 AssocRCRB- LinkType=MemMapped LinkValid+
			Addr:	00000000fed1c000
	Kernel driver in use: pcieport

00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02) (prog-if 00 [UHCI])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 20
	Region 4: I/O ports at 2180 [size=32]
	Capabilities: [50] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: uhci_hcd

00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02) (prog-if 00 [UHCI])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 21
	Region 4: I/O ports at 21a0 [size=32]
	Capabilities: [50] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: uhci_hcd

00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02) (prog-if 20 [EHCI])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 20
	Region 0: Memory at f01a6400 (32-bit, non-prefetchable) [size=1K]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Debug port: BAR=1 offset=00a0
	Capabilities: [98] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: ehci-pci

00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92) (prog-if 01 [Subtractive decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Bus: primary=00, secondary=07, subordinate=07, sec-latency=32
	I/O behind bridge: 00001000-00001fff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [50] Subsystem: Hewlett-Packard Company Device 2818

00:1f.0 ISA bridge: Intel Corporation 82801IO (ICH9DO) LPC Interface Controller (rev 02)
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: [e0] Vendor Specific Information: Len=0c <?>
	Kernel driver in use: lpc_ich

00:1f.2 IDE interface: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 4 port SATA Controller [IDE mode] (rev 02) (prog-if 8a [Master SecP PriP])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 18
	Region 0: I/O ports at 01f0 [size=8]
	Region 1: I/O ports at 03f4
	Region 2: I/O ports at 0170 [size=8]
	Region 3: I/O ports at 0374
	Region 4: I/O ports at 21f0 [size=16]
	Region 5: I/O ports at 2200 [size=16]
	Capabilities: [70] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [b0] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: ata_piix

00:1f.5 IDE interface: Intel Corporation 82801I (ICH9 Family) 2 port SATA Controller [IDE mode] (rev 02) (prog-if 85 [Master SecO PriO])
	Subsystem: Hewlett-Packard Company Device 2818
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 18
	Region 0: I/O ports at 2260 [size=8]
	Region 1: I/O ports at 2280 [size=4]
	Region 2: I/O ports at 2268 [size=8]
	Region 3: I/O ports at 2284 [size=4]
	Region 4: I/O ports at 2210 [size=16]
	Region 5: I/O ports at 2220 [size=16]
	Capabilities: [70] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [b0] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: ata_piix

07:09.0 Serial controller: MosChip Semiconductor Technology Ltd. PCI 9835 Multi-I/O Controller (rev 01) (prog-if 02 [16550])
	Subsystem: LSI Logic / Symbios Logic 2S (16C550 UART)
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 21
	Region 0: I/O ports at 1110 [size=8]
	Region 1: I/O ports at 1118 [size=8]
	Region 2: I/O ports at 1120 [size=8]
	Region 3: I/O ports at 1128 [size=8]
	Region 4: I/O ports at 1130 [size=8]
	Region 5: I/O ports at 1100 [size=16]
	Kernel driver in use: serial

[7.6.] SCSI information (from /proc/scsi/scsi)
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: Hitachi HUA72201 Rev: A3EA
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: HL-DT-ST Model: DVD-RAM GSA-H60L Rev: R90C
  Type:   CD-ROM                           ANSI  SCSI revision: 05

[7.7.] Other information that might be relevant to the problem
       (please look in /proc and include all information that you
       think to be relevant):
[X.] Other notes, patches, fixes, workarounds:

I am using the latest kernel from linux-image-4.4.0-040400rc5-generic_4.4.0-040400rc5.201512140221_amd64.deb, /lib/firmware/i915/skl_guc_ver4.bin from Debian package firmware-misc-nonfree_20151207-1_all.deb. The PC has the latest BIOS v1.35 (November 27, 2015, http://ftp.hp.com/pub/softpaq/sp73501-74000/sp73582.exe).

I originally reported this bug to Ubuntu (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1375995). With the latest Ubuntu version 15.10, suspend never works, the workaround with first suspending to disk no longer works. With Arch Linux on the same PC, suspend to RAM works after suspending to disk.

Testing with pm_trace fails resuming,
echo none > /sys/power/pm_test
echo 0 > /sys/power/pm_async
echo 1 > /sys/power/pm_trace
echo mem > /sys/power/state

dmesg reports
[    0.295437]   Magic number: 0:788:178
[    0.295439]   hash matches drivers/base/power/main.c:1065
[    0.295475] acpi device:0e: hash matches
[    0.295499]  platform: hash matches

When I start the kernel with parameter nomodeset and then suspend to RAM, after resuming the screen stays dark, but the machine reacts to keyboard input (I can type reboot or hit Ctrl-Alt-Del). It will also execute a script which is started after the suspend command, e.g. dmesg. A dmesg output after such a resuming with nomodeset is attached to this message. When the kernel is started normally (i.e. with modeset), the machine seems dead, it does not execute scripts or react to keyboard input and I have to power it off forcefully.

I also tested removing all modules, but it does not change the situation. Removing the i915 requires nomodeset, and this case works the same as nomodeset without removing modules, i.e. the machine reacts, but the screen is dark.

All tests with pm_test succeed, e.g.

echo core > /sys/power/pm_test
echo mem > /sys/power/state

The dmesg output after this test is also attached.

Things I tested without success: acpi=off acpi=linux noapic
Comment 1 Aaron Lu 2015-12-23 02:03:40 UTC 
It's a very long comment and I will summarize it as:
the PC doesn't resume unless nomodeset added to kernel cmdline, in which case, the screen isn't turned on after resume but reacts to keyboard and able to reboot with ctrl-alt-del.

I would say this is a GPU driver issue, move it there.
Comment 2 Jani Nikula 2015-12-23 10:18:46 UTC 
Please file new i915 bugs at the freedesktop.org bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel