kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Russel Winder, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily kernel folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.12-rc2

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.


** Changed in: linux (Ubuntu)
       Status: Triaged => Incomplete

-- 
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https://bugs.launchpad.net/bugs/538648

Title:
  8086:2a42 [Intel GM45] Irregular sync flashes (Needs i915.powersave
  quirk)

Status in X.org xf86-video-intel:
  Fix Released
Status in “linux” package in Ubuntu:
  Incomplete
Status in “xserver-xorg-video-intel” package in Ubuntu:
  Invalid

Bug description:
  [Status]
  Fixed in maverick
  Not fixed in lucid (bug still seen on 2010-09-22 with kernel 2.6.32-25)

  [Workaround]
  As workaround add the option i915.powersave=0 to the kernel command line in the grub config (for GRUB 2: edit /etc/default/grub and add  i915.powersave=0 to GRUB_CMDLINE_LINUX, then run sudo update-grub; for GRUB 1: edit /boot/grub/menu.lst and add i915.powersave=0 to the end of the line beginning with # kopt=, then run sudo update-grub).

  [Alternative workaround for experts]
  Compile your kernel with Andy Whitcroft's patch from http://people.canonical.com/~apw/lp538648-lucid/ (see comment #92).

  [Report]
  Binary package hint: xserver-xorg

  When I first installed Lucid on my T500 I believe everything seemd to
  be fine with the display.  Recently though the screen has started
  giving flashes -- as though there was some form of sync problem for
  the display.  The flashes are of irregular frequency and occurrence.
  I haven't yet seen any pattern to the behaviour.  They are however
  exceptionally annoying.

  I believe I  am using the Intel chipset graphics device -- I am not
  actually aware of how to switch to using the alternate graphics
  hardware, but I am told it is not worth bothering with, so I haven't.

  I am using the Compiz window manager so I guess the problem could be
  there rather than with Xorg.

  There is no xorg.conf file so there is no overide of the default
  behaviour.

  I am not sure what programs to run to give useful output for this problem.  I have attached the current Xorg log file.
  ---
  Architecture: amd64
  DistroRelease: Ubuntu 10.04
  DkmsStatus:
   virtualbox-ose, 3.1.4, 2.6.32-17-generic, x86_64: installed
   virtualbox-ose, 3.1.4, 2.6.32-16-generic, x86_64: installed
   virtualbox-ose-guest, 3.1.4, 2.6.32-17-generic, x86_64: installed
   virtualbox-ose-guest, 3.1.4, 2.6.32-16-generic, x86_64: installed
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
  MachineType: LENOVO 20827SG
  Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu16
  PackageArchitecture: amd64
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=d075e3b9-f26d-4896-9983-4afe962b115a ro quiet splash
  ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
  Tags: lucid lucid
  Uname: Linux 2.6.32-17-generic x86_64
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 01/09/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6FET56WW (2.02 )
  dmi.board.name: 20827SG
  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:bvr6FET56WW(2.02):bd01/09/2009:svnLENOVO:pn20827SG:pvrThinkPadT500:rvnLENOVO:rn20827SG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20827SG
  dmi.product.version: ThinkPad T500
  dmi.sys.vendor: LENOVO
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       x86_64
   kernel:             2.6.32-17-generic

  [lspci]
  00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
   Subsystem: Lenovo Device [17aa:2114]

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