** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: nvidia-graphics-drivers-346-updates (Ubuntu)
Status: New => Confirmed
** Changed in: nvidia-graphics-drivers-346-updates (Ubuntu)
Importance: Undecided => High
** Changed in: xorg (Ubuntu)
Status: New => Confirmed
** Changed in: xorg (Ubuntu)
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1452173
Title:
[Dell Precision M4800] Regression: screen brightness control broken in
15.04
Status in linux package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-346-updates package in Ubuntu:
Confirmed
Status in xorg package in Ubuntu:
Confirmed
Bug description:
In Ubuntu 15.04, I no longer am able to control the screen brightness.
See possible similar bug #1411514 for 14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module 346.59 Tue Mar 31 14:10:31
PDT 2015
GCC version: gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu13)
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop:
Date: Wed May 6 10:12:03 2015
DistUpgraded: 2015-04-24 01:12:19,566 DEBUG enabling apt cron job
DistributionChannelDescriptor:
# This is a distribution channel descriptor
# For more information see
http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-precise-amd64-20130203-1
DistroCodename: vivid
DistroVariant: ubuntu
EcryptfsInUse: Yes
GraphicsCard:
NVIDIA Corporation GK106GLM [Quadro K2100M] [10de:11fc] (rev a1) (prog-if 00
[VGA controller])
Subsystem: Dell Device [1028:05cc]
InstallationDate: Installed on 2014-03-12 (419 days ago)
InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary
20130203-13:50
MachineType: Dell Inc. Precision M4800
PlymouthDebug: Error: [Errno 13] Permission denied:
'/var/log/plymouth-debug.log'
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic.efi.signed
root=UUID=61c860cd-d55d-4e70-85a3-615b677b5811 ro nomodeset=1 splash quiet
plymouth:debug=1
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to vivid on 2015-04-23 (12 days ago)
dmi.bios.date: 12/03/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 077KCT
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA11:bd12/03/2014:svnDellInc.:pnPrecisionM4800:pvr01:rvnDellInc.:rn077KCT:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Precision M4800
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917-1~exp1ubuntu2build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.11-1ubuntu2build1
xserver.bootTime: Tue May 5 22:22:48 2015
xserver.configfile: default
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
xserver.version: 2:1.17.1-0ubuntu3
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