Xorg freeze

[Kelvin Jones]

happen when i first boot up

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-5.10-generic 3.8.0-rc6
Uname: Linux 3.8.0-5-generic i686
NonfreeKernelModules: wl nvidia
ApportVersion: 2.8-0ubuntu4
Architecture: i386
Date: Sun Feb 10 18:11:23 2013
DistroCodename: raring
DistroVariant: ubuntu
GpuHangFrequency: Several times a day
InstallationDate: Installed on 2013-01-30 (11 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
MarkForUpload: True
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to raring on 2013-01-30 (11 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Geoff Clements (geoff-v8x)]

There's not much description in the bug report but I have marked it as affects me because I am suffering from Xorg freezes since updating to Raring. I'm using Kubuntu and nvidia-313-updates (313.30-0ubuntu1). I have tried nvidia-304-updates and nvidia-310-updates but they both suffer from this problem.

Prior to the update I never saw a freeze on this PC.

When the freeze happens the cursor stops moving and no keys work, however I am still able to power down the PC by pressing the power button.

[Geoff Clements (geoff-v8x)]

In an attempt to try to find a work around I made the following change:
Settings > Desktop Effects > Advanced > Composting type > OpenGL > Qt graphics system > Native
(it was "Render").

I've now been running for nearly a week without seeing any freezes, it was at least one a day. As this is a KDE setting (I'm using Kubuntu) I guess it's not much help to the OP, sorry.