LiveCD X Freezes with 100% CPU [Karmic] [GeForce 9500 GT]

[Michael Fletcher]

When booting the latest daily livecd my computer freezes during X's startup. The monitor briefly cycles off and then cycles on again but is blank. No further startup occurs. When I log into the machine I can see that X is using 100% of the CPU and no other parts of the desktop seem to have started.

Dual Screen GeForce 9500.

This machine has worked ok in all previous releases of Ubuntu.

ProblemType: Bug
Architecture: i386
CurrentDmesg:
 [ 122.439078] lp0: using parport0 (interrupt-driven).
 [ 184.268030] Clocksource tsc unstable (delta = -120277457 ns)
Date: Thu Oct 1 02:01:19 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/Xorg
LiveMediaBuild: Ubuntu 9.10 "Karmic Koala" - Beta i386 (20090929.2)
MachineType: System manufacturer System Product Name
Package: xserver-xorg-core 2:1.6.3-1ubuntu7
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz text break=casper-bottom --
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0~git20090817.7c422387-0ubuntu6
 libdrm2 2.4.13-1ubuntu1
 xserver-xorg-video-intel 2:2.8.1-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090825.fc74e119-0ubuntu2
SourcePackage: xorg-server
Uname: Linux 2.6.31-11-generic i686
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 11/17/2005
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0506
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: A8N-VM CSM
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0506:bd11/17/2005:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnA8N-VMCSM:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
fglrx: Not loaded
system:
 distro: Ubuntu
 architecture: i686kernel: 2.6.31-11-generic
xkbcomp: Error: command ['xkbcomp', ':0', '-w0', '-'] failed with exit code -15:

[Michael Fletcher (mikefletcher)]

Also, I had to kill some program called xkbcomp because apport was stuck collecting information. You may notice some errors in the collected files related to that. I was running ubuntu-bug via a remove SSH connection because I could not get X to work.

[nospoon (ben-james-jones)]

I have a GeForce 8800GT and I think I have the same problem. The screen cycles and then my monitor says there's no input. I had similar (the same maybe?) issues with the Alpha 6 iso and the Sep 25 nightly iso. I used the ubuntu USB boot disk creator and ran from there.

[Michael Fletcher (mikefletcher)]

I retested with the Oct 9 Daily LiveCD and there has been no improvement. The same symptoms occur.

[Bryce Harrington (bryce)]

Thank you for reporting this issue about xserver-xorg-video-nv. Starting
with Lucid, Ubuntu is transitioning to using the -nouveau video driver
by default instead of -nv. The reason for this change is because
upstream development for the -nv driver has been quite slow. We are
quite pleased with the upstream development speed for -nouveau, and hope
this will translate into swifter bug fixes as well.

Because of this, I'm closing this bug report at this time. I'm marking
it wontfix because what you describe is probably a valid issue, but we
do not have further plans to work on it in Ubuntu. If you would still like
to see this issue investigated, I would encourage you to file it
upstream at http://bugs.freedesktop.org/.