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Message #76997
[Bug 1416186] Re: Periodically loss of backlight control
[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]
** Changed in: xorg (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1416186
Title:
Periodically loss of backlight control
Status in xorg package in Ubuntu:
Expired
Bug description:
Periodically there is a loss of control of the backlight control where
trying to brighten the screen or dim it with the keyboard controls
does not function and remains in its current state.
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xorg 1:7.7+7ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
Uname: Linux 3.16.0-29-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.14.7-0ubuntu8.1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Thu Jan 29 21:05:25 2015
DistUpgraded: Fresh install
DistroCodename: utopic
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8650G] [1002:990b] (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:198a]
Advanced Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD 8670A/8670M/8750M] [1002:6600] (rev ff) (prog-if ff)
InstallationDate: Installed on 2015-01-29 (0 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20141015)
MachineType: Hewlett-Packard HP ENVY TS 15 Notebook PC
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-29-generic.efi.signed root=UUID=1cc26cb0-3476-4abf-a12e-acac53ba8537 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/06/2014
dmi.bios.vendor: Insyde
dmi.bios.version: F.18
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 198A
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 03.14
dmi.chassis.asset.tag: 5CG32129MN
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.18:bd11/06/2014:svnHewlett-Packard:pnHPENVYTS15NotebookPC:pvr0888100000305B00000320000:rvnHewlett-Packard:rn198A:rvrKBCVersion03.14:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP ENVY TS 15 Notebook PC
dmi.product.version: 0888100000305B00000320000
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.2-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.2-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Thu Jan 29 20:59:15 2015
xserver.configfile: default
xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.16.0-1ubuntu1.2
xserver.video_driver: radeon
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References