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
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https://bugs.launchpad.net/bugs/908649
Title:
Pink bar and disappearing background just after GRUB menu or after
turning on screen after inactivity period
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