ubuntu-x-swat team mailing list archive

[Dan Lenski <lenski@xxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

This is a brand new Acer AS1410 laptop, running i386 Ubuntu Karmic,
Netbook Remix.  The graphics adapter is Intel X4500MHD (8086:2a42 PCI
ID), supported by the i915 kernel driver.

Yesterday, I tried closing the screen lid to save power while listening
to music.  The music began to stutter when I did this, and the fan came
on.  After I opened the lid again, several windows continued to flicker
for 10-20 seconds, and running top showed that the Xorg server was
consumed 80-100% of the CPU cycles.

Inspecting the /var/log/messages, I find the following error repeatedly
rapidly when the screen is closed:

Oct 10 01:59:56 dlenski-laptop kernel: [ 1292.698045] i915 0000:00:02.0: DVI-D-2: no EDID data
Oct 10 02:00:20 dlenski-laptop kernel: [ 1336.707144] i2c-adapter i2c-2: unable to read EDID block.
Oct 10 02:00:20 dlenski-laptop kernel: [ 1336.707149] i915 0000:00:02.0: DVI-D-1: no EDID data
Oct 10 02:00:20 dlenski-laptop kernel: [ 1336.712273] i2c-adapter i2c-2: unable to read EDID block.
Oct 10 02:00:20 dlenski-laptop kernel: [ 1336.712278] i915 0000:00:02.0: DVI-D-1: no EDID data
Oct 10 02:00:20 dlenski-laptop kernel: [ 1336.716760] i2c-adapter i2c-4: unable to read EDID block.
Oct 10 02:00:20 dlenski-laptop kernel: [ 1336.716763] i915 0000:00:02.0: DVI-D-2: no EDID data
Oct 10 02:00:20 dlenski-laptop kernel: [ 1336.721312] i2c-adapter i2c-4: unable to read EDID block.
Oct 10 02:00:20 dlenski-laptop kernel: [ 1336.721316] i915 0000:00:02.0: DVI-D-2: no EDID data

Apparently, the i915 driver fails to acquire information about the LCD
panel when the lid is closed???

Disabling the screen by some other mechanism, such as running "xset dpms
force off", does not seem to cause this problem.

This bug is similar to, but not identical to,
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/156824, which also involves problems that appear after
closing the lid on a laptop with the i915 graphics driver.

ProblemType: Bug
Architecture: i386
Date: Sat Oct 10 01:59:50 2009
DistroRelease: Ubuntu 9.10
MachineType: Acer Aspire 1410
Package: xserver-xorg-video-intel 2:2.8.1-1ubuntu2
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-11-generic root=UUID=b41da73a-d227-4ee1-b9e7-092cda40dbb6 ro quiet splash
ProcEnviron:
 PATH=(custom, no user)
 LANG=C
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.38-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0~git20090817.7c422387-0ubuntu7
 libdrm2 2.4.13-1ubuntu1
 xserver-xorg-video-intel 2:2.8.1-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090825.fc74e119-0ubuntu2
SourcePackage: xserver-xorg-video-intel
Tags:  ubuntu-unr
Uname: Linux 2.6.31-11-generic i686
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 09/08/2009
dmi.bios.vendor: INSYDE
dmi.bios.version: v0.3117
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Base Board Product Name
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrv0.3117:bd09/08/2009:svnAcer:pnAspire1410:pvrv0.3117:rvnAcer:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: Aspire 1410
dmi.product.version: v0.3117
dmi.sys.vendor: Acer
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       i686kernel:             2.6.31-11-generic

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 ubuntu-unr

-- 
closing screen/lid results in flickering and high CPU usage by Xorg
https://bugs.launchpad.net/bugs/447803
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