Karolis, when you updated to the Precise enablement stack 12.04.3, is this issue resolved for you?
** Changed in: linux (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/985949 Title: Purple line appears on the external monitor after it is turned off and back on Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Incomplete Bug description: I have an external LED monitor connected to my laptop via HDMI. When I first log in everything seems to be fine, but when the monitor turns off due to inactivity and then turns back on, I see 2 pixel wide purple line on the left side (photo attached). I got the same issue when I tried upgrading kernel to 3.2 in Ubuntu 11.10 The same happens in Unity 2D and 3D, so I don't think it's a Unity problem. It's probably either kernel or intel driver. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-23-generic 3.2.0-23.36 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 NonfreeKernelModules: wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: karolis 14155 F.... pulseaudio /dev/snd/controlC1: karolis 14155 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf6dfc000 irq 46' Mixer name : 'Silicon Image SiI1392 HDMI' Components : 'HDA:83847616,1028020a,00100201 HDA:10951392,1028020a,00100000' Controls : 33 Simple ctrls : 19 Card1.Amixer.info: Card hw:1 'Headset'/'Logitech Logitech USB Headset at usb-0000:00:1d.7-1.4, full speed' Mixer name : 'USB Mixer' Components : 'USB046d:0a0b' Controls : 6 Simple ctrls : 2 Date: Fri Apr 20 00:19:10 2012 HibernationDevice: RESUME=UUID=4626d6a9-26ae-4151-9855-e85315830484 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: Dell Inc. XPS M1330 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=e2c1bf72-7985-458c-af54-83144d4687d0 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.2.0-23-generic N/A linux-backports-modules-3.2.0-23-generic N/A linux-firmware 1.79 SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-04-13 (6 days ago) dmi.bios.date: 12/26/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A15 dmi.board.name: 0N6705 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0N6705:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: XPS M1330 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/985949/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp