Bug 13776

Summary:	KMS with Intel Graphic fails
Product:	Drivers	Reporter:	mailinglists
Component:	Video(DRI - Intel)	Assignee:	Eric Anholt (eric)
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	airlied, andrew, dwalker, eric, florian, gordon.jin, jbarnes, mailinglists, spack
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.31-rcX	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	dmesg output lsmod Linux config Add a NULL check from kzalloc in drm_gem_object_alloc dmesg with drm.debug=0x06 Xorg log VGA port disconnected lsmod lspci -vv dmidecode

Description mailinglists 2009-07-15 08:05:37 UTC

i am trying kms with a intel chipset, linux-2.6.31-rc3, recent mesa-master and libdrm-master from 13.07.2009 and i am become follow error when i am inserting i915.ko:

[    2.105376] i915 0000:00:02.0: power state changed by ACPI to D0
[    2.105489] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    2.105598] i915 0000:00:02.0: setting latency timer to 64
[    2.108792] BUG: unable to handle kernel NULL pointer dereference at (null)
[    2.109046] IP: [<(null)>] (null)
[    2.109224] *pde = 00000000
[    2.109397] Oops: 0000 [#1] PREEMPT SMP
[    2.109716] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/type
[    2.109856] Modules linked in: led_class ieee1394 snd_hda_intel(+) snd_hda_codec snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801 i915(+) drm ehci_hcd(+) uhci_hcd(+) i2c_algo_bit video backlight output e1000e usbcore
[    2.111508]
[    2.111612] Pid: 1018, comm: modprobe Not tainted (2.6.31-rc3 #1) 7667V4E
[    2.111723] EIP: 0060:[<00000000>] EFLAGS: 00010246 CPU: 1
[    2.111833] EIP is at 0x0
[    2.111935] EAX: 00000000 EBX: c1fa3ba0 ECX: c1fed76c EDX: c1fa3ba0
[    2.112042] ESI: f6b1c110 EDI: 00000000 EBP: f69dfd60 ESP: f69dfd48
[    2.112042]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[    2.112042] Process modprobe (pid: 1018, ti=f69de000 task=f64283f0 task.ti=f69de000)
[    2.112042] Stack:
[    2.112042]  c0156da4 f6b5c000 00000000 f6836b00 f69c8660 00000000 f69dfd70 c0156e2c
[    2.112572] <0> 00000000 f6836b00 f69dfd90 f830600f 00000000 f6b1c110 00000020 f6836b00
[    2.112572] <0> f69c8660 f6b5c000 f69dfdc4 f83064c9 000080d0 f6b5cca0 f6b5ccdc f6b5ccd4
[    2.112572] Call Trace:
[    2.112572]  [<c0156da4>] ? read_cache_page_async+0x72/0xee
[    2.112572]  [<c0156e2c>] ? read_cache_page+0xc/0x3c
[    2.112572]  [<f830600f>] ? i915_gem_object_get_pages+0x8c/0xd7 [i915]
[    2.112572]  [<f83064c9>] ? i915_gem_object_bind_to_gtt+0x167/0x20f [i915]
[    2.112572]  [<f830658d>] ? i915_gem_object_pin+0x1c/0x149 [i915]
[    2.112572]  [<f82ad853>] ? drm_gem_object_alloc+0x69/0xaa [drm]
[    2.112572]  [<f8306853>] ? i915_gem_init_ringbuffer+0x199/0x3de [i915]
[    2.112572]  [<f82ffa59>] ? i915_driver_load+0x907/0x9da [i915]
[    2.112572]  [<f82afa14>] ? drm_get_dev+0x2b8/0x395 [drm]
[    2.112572]  [<f83181fc>] ? i915_pci_probe+0xd/0x8a [i915]
[    2.112572]  [<c0257c52>] ? local_pci_probe+0xe/0x10
[    2.112572]  [<c0257dfc>] ? pci_device_probe+0x43/0x66
[    2.112572]  [<c02aeed2>] ? driver_probe_device+0x79/0xed
[    2.112572]  [<c02aef89>] ? __driver_attach+0x43/0x5f
[    2.112572]  [<c02ae766>] ? bus_for_each_dev+0x3d/0x67
[    2.112572]  [<c02aedab>] ? driver_attach+0x14/0x16
[    2.112572]  [<c02aef46>] ? __driver_attach+0x0/0x5f
[    2.112572]  [<c02aeb0b>] ? bus_add_driver+0x8f/0x1bc
[    2.112572]  [<c02af1b7>] ? driver_register+0x79/0xe0
[    2.112572]  [<c011eaaf>] ? finish_task_switch+0x56/0x95
[    2.112572]  [<c02580fe>] ? __pci_register_driver+0x38/0x96
[    2.112572]  [<f82ac508>] ? drm_init+0x5d/0xb5 [drm]
[    2.112572]  [<f832a046>] ? i915_init+0x46/0x48 [i915]
[    2.112572]  [<c010104f>] ? do_one_initcall+0x4a/0x10c
[    2.112572]  [<f832a000>] ? i915_init+0x0/0x48 [i915]
[    2.112572]  [<c011f3e1>] ? try_to_wake_up+0x196/0x1a0
[    2.112572]  [<c011b304>] ? need_resched+0x14/0x1e
[    2.112572]  [<c0372de9>] ? preempt_schedule+0x3d/0x43
[    2.112572]  [<c01439db>] ? sys_init_module+0xa7/0x1b8
[    2.112572]  [<c0102931>] ? syscall_call+0x7/0xb
[    2.112572] Code:  Bad EIP value.
[    2.112572] EIP: [<00000000>] 0x0 SS:ESP 0068:f69dfd48
[    2.112572] CR2: 0000000000000000
[    2.135981] ---[ end trace f30cb2ef8529a6f3 ]---

Comment 1 mailinglists 2009-07-15 08:14:10 UTC

Created attachment 22348 [details]
dmesg output

Comment 2 mailinglists 2009-07-15 08:14:43 UTC

Created attachment 22349 [details]
lsmod

Comment 3 mailinglists 2009-07-15 08:15:23 UTC

Created attachment 22350 [details]
Linux config

Comment 4 Daniel Walker 2009-07-15 15:51:13 UTC

Add source owner to the CC ..

Comment 5 Daniel Walker 2009-07-15 15:57:05 UTC

Created attachment 22357 [details]
Add a NULL check from kzalloc in drm_gem_object_alloc

Comment 6 Daniel Walker 2009-07-15 16:26:43 UTC

It looks like Dave Airlie already has a similar NULL fix, it should get into mainline when Linus pulls to DRM tree ..

Comment 7 mailinglists 2009-07-15 17:01:29 UTC

thank you for this patch, i have tried this, but ih the same error. there are other patches to let modesetting work with 2.6.31-rc3? kernel is compiled against uclibc-0.9.30.1 is this a problem? where i can find Dave Airlie's patches?

Comment 8 Florian Mickler 2009-07-15 19:33:11 UTC

dave airlies git tree: 
http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git;a=summary

eanholts git tree is: (only intel fixes) 
http://git.kernel.org/?p=linux/kernel/git/anholt/drm-intel.git;a=shortlog;h=drm-intel-next

another place to look for is the intel-graphics mailinglist (intel-gfx@lists.freedesktop.org) and the dri-devel mailinglist (dri-devel@lists.sourceforge.net)

Comment 9 Florian Mickler 2009-07-15 20:19:53 UTC

[    1.017781] [drm:radeon_set_pll], Wrote: 0x00000000 0x00080000 0x00000000 (0x00008f00)
[    1.017789] [drm:radeon_set_pll], Wrote: rd=0, fd=0, pd=0

is this right? i don't have any radeon hardware, so i can not check what my values are and the code is very convoluted...

Comment 10 mailinglists 2009-07-16 00:58:08 UTC

i have tried several of latest patches from dave airlies git tree, without success. is this a problem of the hardware (Thinkpad X61s)? with Fedora 11 (Kernel 2.6.29) KMS Works

Comment 11 Dave Airlie 2009-07-16 02:23:52 UTC

can we avoid me-too'ing?

The radeon one isn't anything to do with this.

So F11 works fine but latest Linus doesn't.

it might also be a bug in some other part of the kernel that is showing up,

maybe intel guys can help.

Comment 12 mailinglists 2009-07-16 06:14:39 UTC

(In reply to comment #11)
> can we avoid me-too'ing?
> The radeon one isn't anything to do with this.
> So F11 works fine but latest Linus doesn't.
> it might also be a bug in some other part of the kernel that is showing up,
> maybe intel guys can help.

what can i do to help you found the bug?

Comment 13 Florian Mickler 2009-07-16 08:30:15 UTC

argh, sorry, i had 2 browser-windows open and commented on the wrong bug!
please ignore comment #9!

Comment 14 mailinglists 2009-07-18 15:46:27 UTC

today i have tried linux-2.6.31-rc3-git4, that includes airlied drm-fixes, without success

Comment 15 mailinglists 2009-07-20 09:47:52 UTC

anyone can help me with this?

Comment 16 Andrew Grigorev 2009-10-30 18:04:46 UTC

Seems like this bug affects me on 2.6.31.5, uname -a:
ArchLinux with Linux bbook 2.6.31-ARCH #1 SMP PREEMPT Tue Oct 13 13:36:23 CEST 2009 i686 Intel(R) Celeron(R) CPU 900 @ 2.20GHz GenuineIntel GNU/Linux

For about a month I am successfully using KMS on Intel GMA 4500M. But yesterday, after the upgrade, I got kernel panic when running Xorg. After rebuilding intel-dri, mesa and the other from their git repositories kernel panic ceased to appear. Now I just have

2009 Oct 31 03:38:50 bbook Oops: 0000 [#1] PREEMPT SMP
2009 Oct 31 03:38:50 bbook last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/drm/card0/dev
2009 Oct 31 03:38:50 bbook Process modprobe (pid: 10351, ti=f5dc6000 task=f5e7b9c0 task.ti=f5dc6000)
2009 Oct 31 03:38:50 bbook Stack:
2009 Oct 31 03:38:50 bbook Call Trace:
2009 Oct 31 03:38:50 bbook Code: 8b 74 24 14 8d b4 26 00 00 00 00 83 bc 88 88 01 00 00 00 74 16 83 c1 01 83 f9 10 75 ee b8 ea ff ff ff eb 26 8d b4 26 00 00 00 00 <8b> 52 08 83 f9 10 89 9c c8 c8 01 00 00 89 b4 c8 cc 01 00 00 89
2009 Oct 31 03:38:50 bbook EIP: [<f82d6840>] drm_connector_attach_property+0x40/0x80 [drm] SS:ESP 0068:f5dc7d54
2009 Oct 31 03:38:50 bbook CR2: 0000000000000008

output to console, and "(EE) intel(0): No kernel modesetting driver detected." in Xorg.0.log.

Module i915 kernel does not load automatically at boot, and `modprobe i915` gives 
 [<f83e0384>] ? intel_lvds_init+0x154/0x4a0 [i915]
 [<f83db790>] ? intel_modeset_init+0x5a0/0xe80 [i915]
 [<f83c7e81>] ? i915_driver_load+0xde1/0xfb0 [i915]
 [<f82d1c0d>] ? drm_get_dev+0x2ad/0x4e0 [drm]
 [<c1151c8c>] ? sysfs_do_create_link+0xbc/0x160
 [<c11b10aa>] ? local_pci_probe+0x1a/0x40
 [<c11b2361>] ? pci_device_probe+0x81/0xb0
 [<c12343a9>] ? driver_probe_device+0x89/0x170
 [<c1234521>] ? __driver_attach+0x91/0xa0
 [<c1234490>] ? __driver_attach+0x0/0xa0
 [<c1233a22>] ? bus_for_each_dev+0x62/0xa0
 [<c12341d2>] ? driver_attach+0x22/0x40
 [<c1234490>] ? __driver_attach+0x0/0xa0
 [<c12331ae>] ? bus_add_driver+0xce/0x2b0
 [<c11b2240>] ? pci_device_remove+0x0/0x60
 [<c123489f>] ? driver_register+0x6f/0x130
 [<c10687a6>] ? notifier_call_chain+0x46/0x80
 [<f801f000>] ? i915_init+0x0/0x63 [i915]
 [<c11b27f9>] ? __pci_register_driver+0x49/0xd0
 [<c100115b>] ? do_one_initcall+0x3b/0x1b0
 [<c107e645>] ? sys_init_module+0xe5/0x230
 [<c1003cb3>] ? sysenter_do_call+0x12/0x28

at one time and nothing in other (just hang, no output no visible problems).

/var/lib/pacman.log of update that caused it:

[2009-10-30 02:15] synchronizing package lists
[2009-10-30 02:17] starting full system upgrade
[2009-10-30 02:50] upgraded abiword (2.8.0-2 -> 2.6.8-2)
[2009-10-30 02:50] upgraded kernel-headers (2.6.30.5-1 -> 2.6.31.4-1)
[2009-10-30 02:50] Generating locales...
[2009-10-30 02:50]   en_US.UTF-8... done
[2009-10-30 02:50]   en_US.ISO-8859-1... done
[2009-10-30 02:50]   ru_RU.KOI8-R... done
[2009-10-30 02:50]   ru_RU.UTF-8... done
[2009-10-30 02:50]   ru_RU.ISO-8859-5... done
[2009-10-30 02:50] Generation complete.
[2009-10-30 02:50] upgraded glibc (2.10.1-4 -> 2.10.1-5)
[2009-10-30 02:50] upgraded attr (2.4.43-1 -> 2.4.44-1)
[2009-10-30 02:50] upgraded acl (2.2.47-2 -> 2.2.48-1)
[2009-10-30 02:50] upgraded binutils (2.19.1-5 -> 2.20-1)
[2009-10-30 02:50] upgraded gcc (4.4.1-1 -> 4.4.2-2)
[2009-10-30 02:50] upgraded gcc-libs (4.4.1-1 -> 4.4.2-2)
[2009-10-30 02:50] upgraded git (1.6.5.1-1 -> 1.6.5.2-1)
[2009-10-30 02:50] upgraded module-init-tools (3.10-2 -> 3.11.1-1)
[2009-10-30 02:50] >>> Updating module dependencies. Please wait ...
[2009-10-30 02:50] >>> MKINITCPIO SETUP
[2009-10-30 02:50] >>> ----------------
[2009-10-30 02:50] >>> If you use LVM2, Encrypted root or software RAID,
[2009-10-30 02:50] >>> Ensure you enable support in /etc/mkinitcpio.conf .
[2009-10-30 02:50] >>> More information about mkinitcpio setup can be found here:
[2009-10-30 02:50] >>> http://wiki.archlinux.org/index.php/Mkinitcpio
[2009-10-30 02:50] 
[2009-10-30 02:50] >>> Generating initial ramdisk, using mkinitcpio.  Please wait...
[2009-10-30 02:50] ==> Building image "default"
[2009-10-30 02:50] ==> Running command: /sbin/mkinitcpio -k 2.6.31-ARCH -c /etc/mkinitcpio.conf -g /boot/kernel26.img
[2009-10-30 02:50] :: Begin build
[2009-10-30 02:50] :: Parsing hook [base]
[2009-10-30 02:50] :: Parsing hook [udev]
[2009-10-30 02:50] :: Parsing hook [autodetect]
[2009-10-30 02:51] :: Parsing hook [pata]
[2009-10-30 02:51] :: Parsing hook [scsi]
[2009-10-30 02:51] :: Parsing hook [sata]
[2009-10-30 02:51] :: Parsing hook [filesystems]
[2009-10-30 02:51] :: Generating module dependencies
[2009-10-30 02:51] :: Generating image '/boot/kernel26.img'...SUCCESS
[2009-10-30 02:51] ==> SUCCESS
[2009-10-30 02:51] ==> Building image "fallback"
[2009-10-30 02:51] ==> Running command: /sbin/mkinitcpio -k 2.6.31-ARCH -c /etc/mkinitcpio.conf -g /boot/kernel26-fallback.img -S autodetect
[2009-10-30 02:51] :: Begin build
[2009-10-30 02:51] :: Parsing hook [base]
[2009-10-30 02:51] :: Parsing hook [udev]
[2009-10-30 02:51] :: Parsing hook [pata]
[2009-10-30 02:51] :: Parsing hook [scsi]
[2009-10-30 02:51] :: Parsing hook [sata]
[2009-10-30 02:51] :: Parsing hook [filesystems]
[2009-10-30 02:52] :: Generating module dependencies
[2009-10-30 02:52] :: Generating image '/boot/kernel26-fallback.img'...SUCCESS
[2009-10-30 02:52] ==> SUCCESS
[2009-10-30 02:52] upgraded kernel26 (2.6.31.4-1 -> 2.6.31.5-1)
[2009-10-30 02:52] upgraded libevent (1.4.11-1 -> 1.4.12-1)
[2009-10-30 02:52] upgraded libfetch (2.25-1 -> 2.26-1)
[2009-10-30 02:52] upgraded mlocate (0.22.2-1 -> 0.22.2-2)
[2009-10-30 02:52] upgraded ntfs-3g (2009.4.4-1 -> 2009.4.4-2)
[2009-10-30 02:52] upgraded ode (0.11-1 -> 0.11.1-1)
[2009-10-30 02:52] upgraded popt (1.14-1 -> 1.15-1)
[2009-10-30 02:52] upgraded python (2.6.3-2 -> 2.6.4-1)
[2009-10-30 02:52] upgraded syslinux (3.82-1 -> 3.83-1)
[2009-10-30 02:53] Updating font cache... done.
[2009-10-30 02:53] installed ttf-freefont (20090104-2)
[2009-10-30 02:53] upgraded vlc (1.0.2-3 -> 1.0.2-4)
[2009-10-30 02:53] upgraded xmoto (0.5.2-1 -> 0.5.2-2)

Comment 17 Andrew Grigorev 2009-10-31 20:11:51 UTC

# modprobe i915 modeset=1

i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
i915 0000:00:02.0: setting latency timer to 64
i915 0000:00:02.0: irq 29 for MSI/MSI-X
BUG: unable to handle kernel NULL pointer dereference at 00000008
IP: [<f82d6840>] drm_connector_attach_property+0x40/0x80 [drm]
*pde = 00000000 
Oops: 0000 [#1] PREEMPT SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/drm/card0/dev
Modules linked in: i915(+) drm_kms_helper fuse aes_i586 aes_generic ipv6 joydev arc4 ecb ath5k mac80211 ath snd_hda_codec_realtek snd_hda_intel snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_hda_codec snd_seq_device snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_timer cfg80211 snd psmouse pcmcia sdhci_pci soundcore yenta_socket sdhci usbhid iTCO_wdt rsrc_nonstatic hid rfkill pcmcia_core tg3 mmc_core uhci_hcd fan ehci_hcd snd_page_alloc i2c_i801 jmb38x_ms iTCO_vendor_support pcspkr led_class serio_raw ac evdev processor button battery thermal wmi memstick libphy usbcore sg vboxnetadp vboxnetflt vboxdrv rtc_cmos rtc_core rtc_lib ext4 mbcache jbd2 crc16 sr_mod cdrom sd_mod ahci libata scsi_mod drm i2c_algo_bit i2c_core video output intel_agp agpgart

Pid: 8523, comm: modprobe Not tainted (2.6.31-ARCH #1) Extensa 4230    
EIP: 0060:[<f82d6840>] EFLAGS: 00010246 CPU: 0
EIP is at drm_connector_attach_property+0x40/0x80 [drm]
EAX: ec87bc00 EBX: 00000001 ECX: 00000002 EDX: 00000000
ESI: 00000000 EDI: 00005018 EBP: f4c09000 ESP: ead23d54
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process modprobe (pid: 8523, ti=ead22000 task=f6775280 task.ti=ead22000)
Stack:
 2a204366 ec87bc00 ecdfe000 f83e0384 00000001 00000000 00000000 f82de977
<0> ec87be60 f82ef5a0 f82ef5a0 00000001 2a204366 f4c09000 00000002 00000800
<0> 00000002 f83db790 00000001 f83f3c04 f83edfa0 f83f3dcb 00000002 f83f3dc9
Call Trace:
 [<f83e0384>] ? intel_lvds_init+0x154/0x4a0 [i915]
 [<f83db790>] ? intel_modeset_init+0x5a0/0xe80 [i915]
 [<f83c7e81>] ? i915_driver_load+0xde1/0xfb0 [i915]
 [<f82d1c0d>] ? drm_get_dev+0x2ad/0x4e0 [drm]
 [<c1151e6c>] ? sysfs_do_create_link+0xbc/0x160
 [<c11b128a>] ? local_pci_probe+0x1a/0x40
 [<c11b2541>] ? pci_device_probe+0x81/0xb0
 [<c1234649>] ? driver_probe_device+0x89/0x170
 [<c12347c1>] ? __driver_attach+0x91/0xa0
 [<c1234730>] ? __driver_attach+0x0/0xa0
 [<c1233cc2>] ? bus_for_each_dev+0x62/0xa0
 [<c1234472>] ? driver_attach+0x22/0x40
 [<c1234730>] ? __driver_attach+0x0/0xa0
 [<c123344e>] ? bus_add_driver+0xce/0x2b0
 [<c11b2420>] ? pci_device_remove+0x0/0x60
 [<c1234b3f>] ? driver_register+0x6f/0x130
 [<c10687a6>] ? notifier_call_chain+0x46/0x80
 [<f8034000>] ? i915_init+0x0/0x63 [i915]
 [<c11b29d9>] ? __pci_register_driver+0x49/0xd0
 [<c100115b>] ? do_one_initcall+0x3b/0x1b0
 [<c107e6e5>] ? sys_init_module+0xe5/0x230
 [<c1003cb3>] ? sysenter_do_call+0x12/0x28
Code: 8b 74 24 14 8d b4 26 00 00 00 00 83 bc 88 88 01 00 00 00 74 16 83 c1 01 83 f9 10 75 ee b8 ea ff ff ff eb 26 8d b4 26 00 00 00 00 <8b> 52 08 83 f9 10 89 9c c8 c8 01 00 00 89 b4 c8 cc 01 00 00 89 
EIP: [<f82d6840>] drm_connector_attach_property+0x40/0x80 [drm] SS:ESP 0068:ead23d54
CR2: 0000000000000008
---[ end trace 99fb4b338b47e772 ]---

Comment 18 Andrew Grigorev 2009-11-09 06:34:53 UTC

Sorry, that was bug in ArchLinux package.

Comment 19 spack 2010-05-03 17:47:38 UTC

Hi all,

I think that my problem is related to this bug. Everything started with kernel 2.6.31 on Debian Sid. When the kernel loads the i915 module, I've got a blank (I've got no display anymore). Then, I switched to Archlinux and same thing, no display.

With 2.6.31 kernel, I used to have a similar trace like showed before but with kernel 2.6.32 and after, this trace disappear. Xorg now tells me that LVDS1 is disconnected but I can plug a screen and get a display on my VGA port. When I blacklist the i915 module and remove intel driver (2.10) and can get my laptop screen working with vesa driver.

$ uname -a
Linux korola 2.6.33-ARCH #1 SMP PREEMPT Mon Apr 26 20:00:20 CEST 2010 i686 Intel(R) Pentium(R) M processor 1.70GHz GenuineIntel GNU/Linux

Following, some logs file:

- dmesg with drm.debug=0x06
- Xorg.0.log
- lsmod
- lspci -vv
- dmidecode

Comment 20 spack 2010-05-03 17:49:56 UTC

Created attachment 26208 [details]
dmesg with drm.debug=0x06

Comment 21 spack 2010-05-03 17:51:10 UTC

Created attachment 26209 [details]
Xorg log VGA port disconnected

Comment 22 spack 2010-05-03 17:51:47 UTC

Created attachment 26210 [details]
lsmod

Comment 23 spack 2010-05-03 17:52:20 UTC

Created attachment 26211 [details]
lspci -vv

Comment 24 spack 2010-05-03 17:52:54 UTC

Created attachment 26212 [details]
dmidecode

Comment 25 spack 2010-05-04 16:21:52 UTC

I tried with the latest kernel (2.6.34-rc6) and this one solves my problem. I can now play with my laptop screen.

Comment 26 Jesse Barnes 2010-07-23 20:04:54 UTC

thanks for the update.