It's not a bug in the gfx driver that you don't have the correct
backlight driver.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/446717
Title:
[gm45] Adjusting Brightness in Acer Aspire Timelines causes system
freeze in 4810T and 5810T models
Status in “xserver-xorg-video-intel” package in Ubuntu:
Invalid
Bug description:
Binary package hint: compiz
Ubuntu 9.10 Beta, Acer 4810tz "Timeline" series BIOS 1.28
When Appearance -> Visual Effects are set to "none" brighness keys act
as expected with small screen glitches at the bottom of the panel.
With Appearance -> Visual Effects set to either "Normal" or "Advanced"
changing brightness via the keys causes system to become unresponsive.
Mouse does not move, keyboard does not work EXCEPT the ability to
continue changing the brightness. Only way out is hard power off (or
restart via sysreq).
I have attempted to enable visual effects and disable all plugins via
CCSM with no luck.
Description: Ubuntu karmic (development branch)
Release: 9.10
compiz:
Installed: 1:0.8.3+git20091005-0ubuntu5
Candidate: 1:0.8.3+git20091005-0ubuntu5
Version table:
*** 1:0.8.3+git20091005-0ubuntu5 0
500 http://us.archive.ubuntu.com karmic/main Packages
100 /var/lib/dpkg/status
ProblemType: Bug
Architecture: i386
CompizPlugins:
[core,move,resize,place,decoration,animation,ccp,dbus,mousepoll,gnomecompat,png,svg,imgjpeg,text,commands,neg,video,wall,snap,scale,scaleaddon,expo,staticswitcher,regex,resizeinfo,workarounds,ezoom,vpswitch,extrawm,fade,session,shift,wobbly]
Date: Thu Oct 8 16:13:02 2009
DistroRelease: Ubuntu 9.10
MachineType: Acer Aspire 4810T
Package: compiz 1:0.8.3+git20091005-0ubuntu5
PackageArchitecture: all
PciDisplay: 00:02.0 VGA compatible controller [0300]: Intel Corporation
Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-12-generic
root=UUID=33fe58ed-1c9d-4bb1-8ae3-e148af49bd93 ro quiet splash
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-12.39-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: compiz
Uname: Linux 2.6.31-12-generic i686
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 08/17/2009
dmi.bios.vendor: INSYDE
dmi.bios.version: V1.28.
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Aspire 4810T
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:bvrV1.28.:bd08/17/2009:svnAcer:pnAspire4810T:pvrV1.28.:rvnAcer:rnAspire4810T:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: Aspire 4810T
dmi.product.version: V1.28.
dmi.sys.vendor: Acer
system: distro = Ubuntu, architecture = i686, kernel = 2.6.31-12-generic
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