Requires a very recent v3.10, but the interrupt storms should now be
mitigated. (The problem is still bad hardware, but now we try harder to
ignore it.)
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/447803
Title:
[gm45] closing screen/lid results in flickering and high CPU usage by
Xorg
Status in “xserver-xorg-video-intel” package in Ubuntu:
Fix Released
Bug description:
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
[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series
Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
Subsystem: Acer Incorporated [ALI] Device [1025:029b]
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