[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/557635
Title:
[gm45] Intel GMA X4500HD - LCD Brightness Control no longer works
Status in “linux” package in Ubuntu:
Expired
Bug description:
Binary package hint: xorg
This is on an Asus K50IJ laptop with Intel GMA X4500HD graphics. In
the previous release (Karmic), the LCD brightness adjustment both on
the keyboard, as well as the auto-dim for power save, worked
flawlessly. As of today (April 7th, 2010) with all updates run, this
still does not function for me in Lucid. The hotkey press does invoke
the onscreen display that shows that an adjustment should be taking
place, although it has a definite delay for subsequent presses. The
actual screen brightness, however, does not change.
Needless to say, this also effects battery life. In Karmic, I was able
to run about 3 hours on battery, now I can get right at about 2 hours,
presumably due to the extra battery consumption necessary to run the
screen without being able to reduce brightness.
The output of lshw is attached, hope this helps.
Thanks
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+3ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
Architecture: i386
Date: Wed Apr 7 15:59:10 2010
DkmsStatus: Error: [Errno 2] No such file or directory
GdmLog1:
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
MachineType: ASUSTeK Computer Inc. K50IJ
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic
root=UUID=c2815e8b-bd9b-45fd-86bd-f2454ecf3751 ro quiet splash
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 12/04/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 217
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K50IJ
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr217:bd12/04/2009:svnASUSTeKComputerInc.:pnK50IJ:pvr1.0:rvnASUSTeKComputerInc.:rnK50IJ:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: K50IJ
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
glxinfo: Error: [Errno 2] No such file or directory
system:
distro: Ubuntu
codename: lucid
architecture: i686
kernel: 2.6.32-19-generic
[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series
Chipset Integrated Graphics Controller [8086:2a42] (rev 09)
Subsystem: ASUSTeK Computer Inc. Device [1043:1862]
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