Public bug reported: As the title says, I'm having a strange behaviour that appears randomly. Sometimes it happens just after passing the GRUB menu and I have to turn off computer or reboot with Ctrl + Alt + Del various times in a row until it decides to load the graphics card correctly.
It also happens when the screen turns on after having turned off due to inactivity. If after some time I try to wake up the screen by moving the mouse or pressing a key on the keyboard, the same pink bar and colour degradation appears. The system is working perfectly as I can type my password, still listen sound and reboot by pressing menus as I can remember them, it's just that the framebuffer gets corrupted. I have attached a video (MKV container, encoded with H.264 for video and MP3 for audio) of this event when it occurs just after the GRUB menu. It's always the same pink/blue bar and that background degradation, doesn't matter if it's at boot time or trying to continue my open session. My laptop is an ASUS N53SN and has an Intel Core i7 2630QM (Sandy Bridge) with an NVIDIA GT550M that I have disabled by blacklisting the nouveau module. This bug was showing before doing that anyways so it doesn't matter. Just for more indications, this laptop has a LED to tell which card is supposed to be running. If the LED is blue it's running the Intel integrated card, but if it's white then it's the NVIDIA GT500M which is supposed to be working. The LED is always white, something that for me does not have any logic because I have disabled any modules that have something to do with the NVIDIA GPU. I've even issued the Ironhide commands to disable the card and that LED maintains it's white color. I just say it because maybe it's related, although it just maybe an ACPI or WMI problem. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-14-generic 3.0.0-14.23 ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9 Uname: Linux 3.0.0-14-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu4 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: raul 1794 F.... pulseaudio CRDA: Error: [Errno 2] No existe el archivo o el directorio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xdf000000 irq 49' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:10ec0269,10431063,00100100 HDA:80862805,80860101,00100000' Controls : 22 Simple ctrls : 12 Date: Mon Dec 26 01:58:32 2011 HibernationDevice: RESUME=UUID=968e95f3-010c-4925-976d-6af33e7c279b InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011) MachineType: ASUSTeK Computer Inc. N53SN ProcEnviron: PATH=(custom, no user) LANG=es_ES.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-14-generic root=/dev/mapper/ubunturoot-raiz ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.0.0-14-generic N/A linux-backports-modules-3.0.0-14-generic N/A linux-firmware 1.60 SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/10/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: N53SN.208 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: N53SN dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN53SN.208:bd08/10/2011:svnASUSTeKComputerInc.:pnN53SN:pvr1.0:rvnASUSTeKComputerInc.:rnN53SN:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: N53SN dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug oneiric running-unity staging -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/908649 Title: Pink bar and disappearing background just after GRUB menu or after turning on screen after inactivity period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/908649/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs