ubuntu-x-swat team mailing list archive

[Geir Ove Myhr <gomyhr@xxxxxxxxx>]

It seems that the crash initially reported doesn't happen every time
and is a side issue (I'll update the title and description to remove
the crash). The real issue is that the screen is black with some
random white dots scattered on the top of the monitor (picture
attached). It seems that xorg is running fine without anything
changing on the screen. CapsLock still turns on and off the LED.

I started a gdb session from a remote computer anticipating to do a
full backtrace after the crash. Since the crash didn't happen I just
took some backtraces and went on. I switched VT a few times, and that
resulted in a SIGUSR1 and I had to tell gdb to continue. Attaching the
gdb session log.

Since this seems related to KMS (which a presume is part of DRM) I
turned on DRM debugging by
echo 1 | sudo tee /sys/module/drm/parameters/debug
This results in a lot of extra information in the dmesg output.
Attaching that as well.

Anything else I should do?


** Attachment added: "gdb-Xorg-VESA.txt"
   http://launchpadlibrarian.net/29238381/gdb-Xorg-VESA.txt

** Attachment added: "img_1503.jpg"
   http://launchpadlibrarian.net/29238382/img_1503.jpg

** Attachment added: "dmesg-drmdebug.txt"
   http://launchpadlibrarian.net/29238383/dmesg-drmdebug.txt

** Summary changed:

- [i965GM] Xorg crashes on startup when using driver "VESA" (KMS bug)
+ [i965GM] Xorg starts to black screen with some corruption when using driver "VESA" (KMS bug)

** Description changed:

  Binary package hint: xserver-xorg-video-vesa
  
  When adding the line
    Driver "VESA"
- to the "Device" section of xorg.conf, xorg crashes on startup. It starts normally when I use UMS instead of KMS (i915.modeset=0 on boot).
+ to the "Device" section of xorg.conf, xorg starts up with only a black screen with a few lines of scattered white dots on the upper part. It starts normally when I use UMS instead of KMS (i915.modeset=0 on boot).
  
  This is a Lenovo X61 Tablet which has intel 965GM graphics.
  
  [lspci]
  00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 0c)
  	Subsystem: Lenovo Device [17aa:20b3]
  00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 0c)
  	Subsystem: Lenovo Device [17aa:20b5]
  
  ProblemType: Bug
  Architecture: i386
  Date: Sat Jul 18 16:56:13 2009
  DistroRelease: Ubuntu 9.10
  MachineType: LENOVO 7764CTO
  Package: xserver-xorg-video-vesa 1:2.2.0-1
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-3-generic root=UUID=938751f9-b020-46b7-a6d6-d4ec43b0c40a ro single
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-3.19-generic
  RelatedPackageVersions:
   xserver-xorg 1:7.4+3ubuntu5
   libgl1-mesa-glx 7.5~rc4-1ubuntu3
   libdrm2 2.4.11-1ubuntu1
   xserver-xorg-video-intel 2:2.7.99.901+git20090702.74227141-0ubuntu1
   xserver-xorg-video-ati 1:6.12.99+git20090629.f39cafc5-0ubuntu1
  SourcePackage: xserver-xorg-video-vesa
  Uname: Linux 2.6.31-3-generic i686
  dmi.bios.date: 07/29/2008
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7SET34WW (1.20 )
  dmi.board.name: 7764CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7SET34WW(1.20):bd07/29/2008:svnLENOVO:pn7764CTO:pvrThinkPadX61Tablet:rvnLENOVO:rn7764CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7764CTO
  dmi.product.version: ThinkPad X61 Tablet
  dmi.sys.vendor: LENOVO
  fglrx: Not loaded
  system:
   distro:             Ubuntu
   architecture:       i686kernel:             2.6.31-3-generic

** Tags added: corruption
** Tags removed: crash

-- 
[i965GM] Xorg starts to black screen with some corruption when using driver "VESA" (KMS bug)
https://bugs.launchpad.net/bugs/401214
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