Forwarding this bug from Ubuntu reporter Jerome Tournier: http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/918769 [Problem] X session starts up fine but the screen blinks every ~10sec. Also displays black screen. Booting with nomodeset makes issue stop. Also tested mainline kernel 3.3.0-030300rc1_3.3.0-030300rc1 and (I think) drm-next and drm-intel-next. [Original Description] I can't actually manage to have X working correctly with my Vostro 360. The X session start but the screen blink every ~10s (and stay back most of the time). I found a lot of people having similar problem, but no solution can be applied to my case. X logs for Ubuntu 11.10 (i386 but same issue for amd64): 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) I will attach a kernel and Xorg dump. The only way for me to have correct resolution (1920x1080) was in using the Live CDROM of elementary OS (based on Ubuntu Maverick 10.10) which use: - linux-headers-2.6.35-28-generic 2.6.35-28.49 - xserver-xorg-video-intel 2:2.12.0-1ubuntu5.2 .. but once the system installed, the black screen problem come back. I can't actually undestand the difference between the live OS and the installed one (after the installation, the kernel is slightly different; but after installing exactly the same than the one used in the live CD, the problem persist). I also tried other Ubuntu release, even the latest Ubuntu 12.04 precise (alpha version): same issue. Booting with nomodeset helps also, but lead to a low resolution. Any idea on what could explain that eveything is working correctly with the livecd, and nothing once the system installed ? More generaly, how can i help to have a working solution ? Packages installed: ------------------- ii libdrm-intel1 2.4.30-1ubuntu1 ii xserver-xorg-video-intel 2:2.15.901-1ubuntu4 DistroRelease: Ubuntu 12.04 Package: xserver-xorg-video-intel 2:2.15.901-1ubuntu4 ProcVersionSignature: Ubuntu 3.2.0-9.16-generic-pae 3.2.1 Uname: Linux 3.2.0-9-generic-pae i686 ApportVersion: 1.91-0ubuntu1 Architecture: i386 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' Date: Thu Jan 19 17:07:41 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:0512] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120112) MachineType: Dell Inc. Vostro 360 ProcEnviron: PATH=(custom, no user) LANG=fr_FR.UTF-8ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-9-generic-pae root=UUID=4f9a709d-de4a-4cc6-a27b-0c6e05a2cde2 ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-intel UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/22/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 07K1DC dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 13 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: PRAndrews_2H03P_A01.SDR dmi.modalias: dmi:bvnDellInc.:bvrA06:bd12/22/2011:svnDellInc.:pnVostro360:pvr00:rvnDellInc.:rn07K1DC:rvrA00:cvnDellInc.:ct13:cvrPRAndrews_2H03P_A01.SDR: dmi.product.name: Vostro 360 dmi.product.version: 00 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8 version.libdrm2: libdrm2 2.4.30-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.10.4-1ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1