Hi, Since I have install the linux kernel 4.0 on my computer (Actually, My laptop is running the 4.0.3), I can't suspend/shutdown it at all (My previous running version was 3.16) Now, when I run the "shutdown -h" command, my screen become blank, and after a while, fan begin to turn at its maximum capacity As if "power off" doesn't work anymore, but "halt" yes (Even if I don't see the "System halted" message) With dmesg, I was able to see that many ACPI exceptions has occurred during boot : benjamin@chaintreuil:~$ sudo dmesg -t | grep -i 'error\|warn\|exception' ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20150204/hwxface-580) ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20150204/hwxface-580) acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM ACPI Warning: SystemIO range 0x0000000000002000-0x000000000000201f conflicts with OpRegion 0x0000000000002000-0x000000000000200f (\_SB_.PCI0.SBUS.SMBI) (20150204/utaddress-258) My laptop (a Packard Bell EasyNote TF71BM-C4XZ) is running on Debian 8, with a bios in UEFI More informations : /proc/version : Linux version 4.0.3-040003-generic (kernel@tangerine) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201505131441 SMP Wed May 13 13:43:16 UTC 2015 /proc/cpuinfo : CPU info : processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 55 model name : Intel(R) Celeron(R) CPU N2830 @ 2.16GHz stepping : 8 microcode : 0x80c cpu MHz : 1802.605 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 11 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 rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms bugs : bogomips : 4326.40 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 : 55 model name : Intel(R) Celeron(R) CPU N2830 @ 2.16GHz stepping : 8 microcode : 0x80c cpu MHz : 2108.778 cache size : 1024 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 11 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 rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms bugs : bogomips : 4326.40 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: /proc/modules : ctr 16384 2 - Live 0xffffffffc069e000 ccm 20480 2 - Live 0xffffffffc0698000 rtsx_usb_ms 20480 0 - Live 0xffffffffc0a6a000 rtsx_usb_sdmmc 28672 0 - Live 0xffffffffc0b84000 memstick 20480 1 rtsx_usb_ms, Live 0xffffffffc0b8c000 rtsx_usb 24576 2 rtsx_usb_ms,rtsx_usb_sdmmc, Live 0xffffffffc0b0e000 bnep 24576 2 - Live 0xffffffffc0a9b000 binfmt_misc 20480 1 - Live 0xffffffffc0a64000 joydev 20480 0 - Live 0xffffffffc091a000 nfsd 335872 2 - Live 0xffffffffc0b31000 auth_rpcgss 61440 1 nfsd, Live 0xffffffffc0afe000 nfs_acl 16384 1 nfsd, Live 0xffffffffc08c6000 uvcvideo 94208 0 - Live 0xffffffffc0b19000 nfs 262144 0 - Live 0xffffffffc0abd000 acer_wmi 20480 0 - Live 0xffffffffc0a70000 lockd 98304 2 nfsd,nfs, Live 0xffffffffc0aa4000 videobuf2_vmalloc 16384 1 uvcvideo, Live 0xffffffffc0915000 hid_multitouch 20480 0 - Live 0xffffffffc0a5e000 sparse_keymap 16384 1 acer_wmi, Live 0xffffffffc09ac000 videobuf2_memops 16384 1 videobuf2_vmalloc, Live 0xffffffffc094f000 grace 16384 2 nfsd,lockd, Live 0xffffffffc094a000 fscache 65536 1 nfs, Live 0xffffffffc0a8a000 videobuf2_core 53248 1 uvcvideo, Live 0xffffffffc0a7c000 v4l2_common 16384 1 videobuf2_core, Live 0xffffffffc08d2000 sunrpc 339968 6 nfsd,auth_rpcgss,nfs_acl,nfs,lockd, Live 0xffffffffc0958000 videodev 163840 3 uvcvideo,videobuf2_core,v4l2_common, Live 0xffffffffc0921000 ath3k 16384 0 - Live 0xffffffffc08d7000 btusb 45056 0 - Live 0xffffffffc0905000 media 24576 2 uvcvideo,videodev, Live 0xffffffffc08cb000 intel_rapl 20480 0 - Live 0xffffffffc0832000 bluetooth 524288 22 bnep,ath3k,btusb, Live 0xffffffffc09dd000 intel_powerclamp 20480 0 - Live 0xffffffffc08b8000 arc4 16384 2 - Live 0xffffffffc08c1000 coretemp 16384 0 - Live 0xffffffffc0574000 kvm_intel 159744 0 - Live 0xffffffffc09b5000 ath9k 155648 0 - Live 0xffffffffc08de000 ath9k_common 32768 1 ath9k, Live 0xffffffffc0829000 kvm 512000 1 kvm_intel, Live 0xffffffffc083a000 ath9k_hw 487424 2 ath9k,ath9k_common, Live 0xffffffffc07b1000 crct10dif_pclmul 16384 0 - Live 0xffffffffc057e000 crc32_pclmul 16384 0 - Live 0xffffffffc0579000 ghash_clmulni_intel 16384 0 - Live 0xffffffffc056f000 cryptd 24576 1 ghash_clmulni_intel, Live 0xffffffffc0558000 ath 32768 3 ath9k,ath9k_common,ath9k_hw, Live 0xffffffffc0562000 mac80211 774144 1 ath9k, Live 0xffffffffc06f3000 pcspkr 16384 0 - Live 0xffffffffc0553000 nls_iso8859_1 16384 1 - Live 0xffffffffc0438000 serio_raw 16384 0 - Live 0xffffffffc041e000 snd_hda_codec_hdmi 53248 1 - Live 0xffffffffc0493000 snd_hda_codec_realtek 81920 1 - Live 0xffffffffc06de000 i915 1126400 5 - Live 0xffffffffc0584000 snd_hda_codec_generic 73728 1 snd_hda_codec_realtek, Live 0xffffffffc06cb000 cfg80211 581632 4 ath9k,ath9k_common,ath,mac80211, Live 0xffffffffc04c4000 snd_hda_intel 32768 3 - Live 0xffffffffc045b000 snd_hda_controller 36864 1 snd_hda_intel, Live 0xffffffffc042e000 i2c_i801 24576 0 - Live 0xffffffffc0423000 lpc_ich 24576 0 - Live 0xffffffffc0308000 drm_kms_helper 126976 1 i915, Live 0xffffffffc04a4000 snd_hda_codec 147456 5 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller, Live 0xffffffffc046e000 mei_txe 20480 0 - Live 0xffffffffc0464000 snd_hwdep 16384 1 snd_hda_codec, Live 0xffffffffc043f000 mei 90112 1 mei_txe, Live 0xffffffffc0444000 drm 352256 7 i915,drm_kms_helper, Live 0xffffffffc03c7000 shpchp 40960 0 - Live 0xffffffffc037d000 iosf_mbi 16384 1 intel_rapl, Live 0xffffffffc0303000 i2c_algo_bit 16384 1 i915, Live 0xffffffffc0378000 8250_fintek 16384 0 - Live 0xffffffffc02e7000 soc_button_array 16384 0 - Live 0xffffffffc0373000 snd_intel_sst_acpi 16384 0 - Live 0xffffffffc031d000 snd_intel_sst_core 73728 1 snd_intel_sst_acpi, Live 0xffffffffc03b4000 snd_soc_rt5640 94208 0 - Live 0xffffffffc039c000 snd_soc_sst_mfld_platform 77824 1 snd_intel_sst_core, Live 0xffffffffc0388000 snd_soc_rl6231 16384 1 snd_soc_rt5640, Live 0xffffffffc02d0000 snd_soc_core 200704 2 snd_soc_rt5640,snd_soc_sst_mfld_platform, Live 0xffffffffc0341000 snd_compress 20480 1 snd_soc_core, Live 0xffffffffc0317000 snd_pcm_dmaengine 16384 1 snd_soc_core, Live 0xffffffffc02ec000 snd_pcm 110592 8 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller,snd_hda_codec,snd_soc_rt5640,snd_soc_sst_mfld_platform,snd_soc_core,snd_pcm_dmaengine, Live 0xffffffffc0325000 wmi 20480 1 acer_wmi, Live 0xffffffffc0311000 snd_timer 32768 1 snd_pcm, Live 0xffffffffc02fa000 video 28672 2 acer_wmi,i915, Live 0xffffffffc0299000 snd 86016 17 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_soc_sst_mfld_platform,snd_soc_core,snd_compress,snd_pcm,snd_timer, Live 0xffffffffc02b4000 intel_smartconnect 16384 0 - Live 0xffffffffc0288000 dw_dmac 16384 0 - Live 0xffffffffc02f5000 dw_dmac_core 28672 1 dw_dmac, Live 0xffffffffc02df000 soundcore 16384 2 snd_hda_codec,snd, Live 0xffffffffc02d6000 snd_soc_sst_acpi 16384 0 - Live 0xffffffffc02cb000 i2c_designware_platform 16384 0 - Live 0xffffffffc02aa000 i2c_designware_core 16384 1 i2c_designware_platform, Live 0xffffffffc02af000 rfkill_gpio 16384 0 - Live 0xffffffffc02a2000 pwm_lpss_platform 16384 0 - Live 0xffffffffc026a000 spi_pxa2xx_platform 24576 0 - Live 0xffffffffc028f000 mac_hid 16384 0 - Live 0xffffffffc0283000 8250_dw 16384 0 - Live 0xffffffffc026f000 pwm_lpss 16384 1 pwm_lpss_platform, Live 0xffffffffc0116000 parport_pc 36864 0 - Live 0xffffffffc0260000 ppdev 20480 0 - Live 0xffffffffc0104000 lp 20480 0 - Live 0xffffffffc025a000 parport 45056 3 parport_pc,ppdev,lp, Live 0xffffffffc024e000 autofs4 40960 2 - Live 0xffffffffc0274000 btrfs 978944 1 - Live 0xffffffffc015e000 xor 24576 1 btrfs, Live 0xffffffffc00e8000 raid6_pq 98304 1 btrfs, Live 0xffffffffc0145000 hid_generic 16384 0 - Live 0xffffffffc0140000 usbmouse 16384 0 - Live 0xffffffffc00ff000 usbhid 53248 0 - Live 0xffffffffc0132000 r8169 90112 0 - Live 0xffffffffc011b000 ahci 36864 3 - Live 0xffffffffc00f5000 mii 16384 1 r8169, Live 0xffffffffc00be000 libahci 32768 1 ahci, Live 0xffffffffc010d000 i2c_hid 20480 0 - Live 0xffffffffc00ef000 hid 114688 4 hid_multitouch,hid_generic,usbhid,i2c_hid, Live 0xffffffffc00cb000 sdhci_acpi 16384 0 - Live 0xffffffffc00c3000 sdhci 45056 1 sdhci_acpi, Live 0xffffffffc00b2000 /proc/ioports : 0000-006f : PCI Bus 0000:00 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-0060 : keyboard 0062-0062 : PNP0C09:00 0062-0062 : EC data 0064-0064 : keyboard 0066-0066 : PNP0C09:00 0066-0066 : EC cmd 0070-0077 : rtc0 0078-0cf7 : PCI Bus 0000:00 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 03f8-03ff : serial 0400-047f : pnp 00:01 0400-0403 : ACPI PM1a_EVT_BLK 0404-0405 : ACPI PM1a_CNT_BLK 0408-040b : ACPI PM_TMR 0420-042f : ACPI GPE0_BLK 0430-0433 : iTCO_wdt 0450-0450 : ACPI PM2_CNT_BLK 0460-047f : iTCO_wdt 0500-05fe : pnp 00:01 0600-061f : pnp 00:01 0680-069f : pnp 00:01 0cf8-0cff : PCI conf1 0d00-ffff : PCI Bus 0000:00 1000-1fff : PCI Bus 0000:01 1000-10ff : 0000:01:00.0 1000-10ff : r8169 2000-201f : 0000:00:1f.3 2020-203f : 0000:00:13.0 2020-203f : ahci 2040-2047 : 0000:00:13.0 2040-2047 : ahci 2048-204f : 0000:00:13.0 2048-204f : ahci 2050-2057 : 0000:00:02.0 2058-205b : 0000:00:13.0 2058-205b : ahci 205c-205f : 0000:00:13.0 205c-205f : ahci fd60-fd63 : pnp 00:01 /proc/iomem : 00000000-00000fff : reserved 00001000-0006efff : System RAM 0006f000-0006ffff : ACPI Non-volatile Storage 00070000-00085fff : System RAM 00086000-0009ffff : reserved 000a0000-000bffff : PCI Bus 0000:00 000c0000-000dffff : PCI Bus 0000:00 000e0000-000fffff : PCI Bus 0000:00 000f0000-000fffff : System ROM 00100000-1fffffff : System RAM 02000000-027f5c0d : Kernel code 027f5c0e-02d1c6ff : Kernel data 02e89000-02fcbfff : Kernel bss 20000000-200fffff : reserved 20100000-77d01fff : System RAM 77d02000-77d91fff : reserved 77d92000-78611fff : reserved 78612000-78711fff : ACPI Non-volatile Storage 78712000-78751fff : ACPI Tables 78752000-79365fff : System RAM 79366000-79c65fff : ACPI Non-volatile Storage 79c66000-79ffffff : System RAM 7a000000-7affffff : RAM buffer 7b000000-7effffff : reserved 7b000000-7effffff : Graphics Stolen Memory 80000000-908ffffe : PCI Bus 0000:00 80000000-8fffffff : 0000:00:02.0 90000000-903fffff : 0000:00:02.0 90400000-904fffff : PCI Bus 0000:02 90400000-9047ffff : 0000:02:00.0 90400000-9047ffff : ath9k 90480000-9048ffff : 0000:02:00.0 90500000-905fffff : PCI Bus 0000:01 90500000-90503fff : 0000:01:00.0 90500000-90503fff : r8169 90504000-90504fff : 0000:01:00.0 90504000-90504fff : r8169 90600000-906fffff : 0000:00:1a.0 90600000-906fffff : mei_txe 90700000-907fffff : 0000:00:1a.0 90700000-907fffff : mei_txe 90800000-9080ffff : 0000:00:14.0 90800000-9080ffff : xhci-hcd 90810000-90813fff : 0000:00:1b.0 90810000-90813fff : ICH HD audio 90819000-9081901f : 0000:00:1f.3 9081f000-9081f7ff : 0000:00:13.0 9081f000-9081f7ff : ahci 90900000-90903fff : INTL9C60:01 90900000-90903fff : INTL9C60:01 90905000-90905fff : 80860F41:02 90905000-90905fff : 80860F41:02 90907000-90907fff : 80860F41:05 90907000-90907fff : 80860F41:05 e0000000-e3ffffff : PCI MMCONFIG 0000 [bus 00-3f] e00f8000-e00f8fff : reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed003ff : HPET 0 fed00000-fed003ff : PNP0103:00 fed01000-fed01fff : reserved fed01000-fed01fff : pnp 00:03 fed03000-fed03fff : pnp 00:03 fed03008-fed0300c : iTCO_wdt fed04000-fed04fff : pnp 00:03 fed08000-fed08fff : pnp 00:03 fed0c000-fed0ffff : pnp 00:03 fed1c000-fed1cfff : pnp 00:03 fed40000-fed44fff : pnp 00:01 fee00000-feefffff : pnp 00:03 fee00000-fee00fff : Local APIC fef00000-feffffff : pnp 00:03 ff000000-ffffffff : INT0800:00 ffb80000-ffffffff : reserved 100000000-27fffffff : System RAM lspci -vvv : 00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0e) Subsystem: Acer Incorporated [ALI] Device 089d 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 Kernel driver in use: iosf_mbi_pci 00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e) (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Device 089d 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 92 Region 0: Memory at 90000000 (32-bit, non-prefetchable) [size=4M] Region 2: Memory at 80000000 (32-bit, prefetchable) [size=256M] Region 4: I/O ports at 2050 [size=8] Expansion ROM at <unassigned> [disabled] 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- Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0300c Data: 4192 Capabilities: [b0] Vendor Specific Information: Len=07 <?> Kernel driver in use: i915 00:13.0 SATA controller: Intel Corporation Device 0f23 (rev 0e) (prog-if 01 [AHCI 1.0]) Subsystem: Acer Incorporated [ALI] Device 089d 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 88 Region 0: I/O ports at 2048 [size=8] Region 1: I/O ports at 205c [size=4] Region 2: I/O ports at 2040 [size=8] Region 3: I/O ports at 2058 [size=4] Region 4: I/O ports at 2020 [size=32] Region 5: Memory at 9081f000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0300c Data: 41d1 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: [a8] SATA HBA v1.0 BAR4 Offset=00000004 Kernel driver in use: ahci 00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series USB xHCI (rev 0e) (prog-if 30 [XHCI]) Subsystem: Acer Incorporated [ALI] Device 089d 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 87 Region 0: Memory at 90800000 (64-bit, non-prefetchable) [size=64K] Capabilities: [70] 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: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+ Address: 00000000fee0300c Data: 41b1 Kernel driver in use: xhci_hcd 00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0e) Subsystem: Acer Incorporated [ALI] Device 089d 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 90 Region 0: Memory at 90700000 (32-bit, non-prefetchable) [size=1M] Region 1: Memory at 90600000 (32-bit, non-prefetchable) [size=1M] Capabilities: [80] 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: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0300c Data: 4152 Kernel driver in use: mei_txe 00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e) Subsystem: Acer Incorporated [ALI] Device 089d 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 91 Region 0: Memory at 90810000 (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: 4182 Kernel driver in use: snd_hda_intel 00:1c.0 PCI bridge: Intel Corporation Device 0f48 (rev 0e) (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 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 00001000-00001fff Memory behind bridge: 90500000-905fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff 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 (v2) 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 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #0, 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- DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Acer Incorporated [ALI] Device 089d Capabilities: [a0] 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- Kernel driver in use: pcieport 00:1c.1 PCI bridge: Intel Corporation Device 0f4a (rev 0e) (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 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: 90400000-904fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff 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 (v2) 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 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #1, 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- DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Acer Incorporated [ALI] Device 089d Capabilities: [a0] 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- Kernel driver in use: pcieport 00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0e) Subsystem: Acer Incorporated [ALI] Device 089d 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.3 SMBus: Intel Corporation Device 0f12 (rev 0e) Subsystem: Acer Incorporated [ALI] Device 089d 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 B routed to IRQ 18 Region 0: Memory at 90819000 (32-bit, non-prefetchable) [size=32] Region 4: I/O ports at 2000 [size=32] 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- 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10) Subsystem: Acer Incorporated [ALI] Device 089d 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 89 Region 0: I/O ports at 1000 [size=256] Region 2: Memory at 90504000 (64-bit, non-prefetchable) [size=4K] Region 4: Memory at 90500000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0300c Data: 41e1 Capabilities: [70] Express (v2) Endpoint, MSI 01 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 4096 bytes DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s unlimited, L1 <64us ClockPM+ Surprise- LLActRep- BwNot- LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Via message/WAKE# DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [b0] MSI-X: Enable- Count=4 Masked- Vector table: BAR=4 offset=00000000 PBA: BAR=4 offset=00000800 Capabilities: [d0] Vital Product Data Unknown small resource type 00, will not decode more. Capabilities: [100 v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr+ BadTLP- BadDLLP+ Rollover- Timeout- NonFatalErr+ CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [140 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: [160 v1] Device Serial Number 01-00-00-00-68-4c-e0-00 Capabilities: [170 v1] Latency Tolerance Reporting Max snoop latency: 71680ns Max no snoop latency: 71680ns Capabilities: [178 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=150us PortTPowerOnTime=150us Kernel driver in use: r8169 02:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01) Subsystem: Foxconn International, Inc. Device e07f 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 17 Region 0: Memory at 90400000 (64-bit, non-prefetchable) [size=512K] Expansion ROM at 90480000 [disabled] [size=64K] Capabilities: [40] 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: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+ Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [70] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <64us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr+ BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn- Capabilities: [140 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: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00 Kernel driver in use: ath9k
So this is a regression? Please use git bisect to find out the offending commit. I think you can start with the major kernels before bisect.
Is this still a problem with v4.1?