Unable to adjust screen brightness/flickering display in Samsung 90X3A

Bug #1028600 reported by dolfyn on 2012-07-24
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

After today's (kernel?) update adjusting screen brightness fails. When setting brighter the OSD appears and the screen starts to flicker. Using something in the panel stops it.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: notify-osd 0.9.34-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
Date: Tue Jul 24 21:32:14 2012
ExecutablePath: /usr/lib/notify-osd/notify-osd
GtkTheme: Ambiance
IconTheme: ubuntu-mono-dark
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-27-generic root=UUID=a76c3a02-6252-4b8e-ab85-2697d84cf4ba ro pcie_aspm=force i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.powersave=1 snd_hda_intel.power_save_controller=1 snd_hda_intel.power_save=1 quiet splash vt.handoff=7
 xserver-xorg 1:7.6+12ubuntu1
 libgl1-mesa-glx 8.0.2-0ubuntu3.1
 libdrm2 2.4.32-1ubuntu1
 xserver-xorg-video-intel 2:2.17.0-1ubuntu4
 xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
SourcePackage: notify-osd
UpgradeStatus: No upgrade log present (probably fresh install)
WindowManager: No value set for `/desktop/gnome/session/required_components/windowmanager'
dmi.bios.date: 05/20/2011
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 05HL
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 90X3A
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr05HL:bd05/20/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 90X3A
dmi.product.version: 0.1

dolfyn (hwkrus) wrote :
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in notify-osd (Ubuntu):
status: New → Confirmed
papukaija (papukaija) on 2012-08-04
affects: notify-osd (Ubuntu) → linux (Ubuntu)
summary: - Unable to adjust screen brightness/flickering display
+ Unable to adjust screen brightness/flickering display in Samsung 90X3A
papukaija (papukaija) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1028151, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

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