nouveau E[Xorg[966]] failed to idle channel 0xcccc0001

[Jérôme]

After the fresh install, I properly saw the boot progress with the plymouth Xubuntu theme up to a step where the screen has no more the progress image but a odd screen content which doesn't represent anything (from my knowledges).

Next, I could get a virtual console (tty1) after many attempts of key strokes (CTRL-ALT-F1).

Each ~10-30 seconds I get a console message in this screen like :
"nouveau E[Xorg[966]] failed to idle channel 0xcccc0001 [Xorg[966]]"

I achieved to log in and execute 'sudo initctl stop lightdm'.

The 'ps axf' command showed that X was still running.

I first tried the command "sudo kill 966" with no success.

Then I executed the command "sudo kill -KILL 966".

Finally, I decided to install the proprietary driver with the command "sudo apt-get install nvidia-current".

I reboot and the problem disappeared.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
Uname: Linux 3.13.0-35-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri Sep 19 00:45:06 2014
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)

[penalvch (penalvch)]

Jérôme, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal as it will automatically gather and attach updated debug information to this report:

apport-collect -p xorg 1371347

Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

As well, given the information from the prior release is already available, testing a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]