kernel-packages team mailing list archive

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

Keenan Pepper, 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-v3.11.1

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/552092

Title:
  Kernel mode switching causes screen flicker every few minutes on Intel

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have this Intel chip in my laptop:

  VGA compatible controller [0300]: Intel Corporation Mobile 4 Series
  Chipset Integrated Graphics Controller [8086:2a42] (rev 07)

  and when I switched to Lucid beta I started seeing my screen flicker
  occasionally, about every few minutes on average (I haven't noticed
  anything that triggers flickering, it just seems random).

  I have used the laptop for many hours with KMS disabled
  (i915.modeset=0), and there was no sign of flickering.

  Bug 402982 seems like it might be closely related, but that describes almost continuous flickering, not every few minutes.
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  keenan     1568 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf6afc000 irq 21'
     Mixer name	: 'IDT 92HD71B7X'
     Components	: 'HDA:111d76b2,102802aa,00100302'
     Controls      : 25
     Simple ctrls  : 16
  DistroRelease: Ubuntu 10.04
  Frequency: Once a day.
  HibernationDevice: RESUME=UUID=120dc347-ae2a-43b6-9131-9312e08eb2c6
  MachineType: Dell Inc. Inspiron 1545
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=e770002e-e3c0-4583-bf79-907a3f10d693 ro quiet splash
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
  Regression: Yes
  RelatedPackageVersions: linux-firmware 1.34
  Reproducible: No
  RfKill:
   0: dell-wifi: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  Tags: lucid graphics regression-release needs-upstream-testing
  Uname: Linux 2.6.32-22-generic i686
  UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare
  WpaSupplicantLog:
   
  dmi.bios.date: 05/13/2009
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0G848F
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd05/13/2009:svnDellInc.:pnInspiron1545:pvr:rvnDellInc.:rn0G848F:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Inspiron 1545
  dmi.sys.vendor: Dell Inc.

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