You have been subscribed to a public bug:
After changing brightness settings in System Settings > Personal >
Brightness, a restart causes the screen to get fully bright again. I
have read that this is a GNOME limitation - however, most users
including me will probably want that once they set a brightness, it be
saved.
Current workaround that is used is add an echo <brightness_level> >
/sys/class/backlight/acpi_video0/brightness line at /etc/rc.local.
The ideal situation would be to save the value of brightness when
someone changes it.
Thanks for the amazing 12.04!
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.33-generic-pae 3.2.12
Uname: Linux 3.2.0-20-generic-pae i686
.tmp.unity.support.test.0:
ApportVersion: 1.95-0ubuntu1
Architecture: i386
CompizPlugins:
[core,composite,opengl,decor,mousepoll,gnomecompat,regex,imgpng,compiztoolbox,wall,snap,vpswitch,unitymtgrabhandles,move,grid,resize,place,animation,fade,session,scale,workarounds,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Sun Apr 1 13:56:53 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120328)
MachineType: Hewlett-Packard HP ProBook 4420s
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic-pae
root=UUID=A2661C4C661C2417 loop=/hostname/disks/root.disk ro quiet splash
vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/11/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68AHH Ver. F.0E
dmi.board.name: 1423
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 53.34
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68AHHVer.F.0E:bd02/11/2011:svnHewlett-Packard:pnHPProBook4420s:pvr:rvnHewlett-Packard:rn1423:rvrKBCVersion53.34:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 4420s
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.7.2-0ubuntu4
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20111201+b5534a1-1build2
** Affects: gnome-control-center (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: apport-bug compiz-0.9 has-fix has-workaround i386 precise reproducible
single-occurrence ubuntu
--
Brightness settings is not persistent after reboot
https://bugs.launchpad.net/bugs/970990
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Bugs, which is subscribed to gnome-control-center in Ubuntu.
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