I was experiencing this problem with a Dell Dimension 2300 desktop (Intel 82845G/GL[Brookdale-G]/GE Graphics Chipset).
Speculating that this was a configuration issue in Karmic, I switched back to using an xorg.conf file I had used with Jaunty after following this guide: http://ubuntuforums.org/showthread.php?t=1130582 to improve graphics performance in Jaunty. I have not experienced a freeze since I started using this xorg.conf file again. I think the reason may be that it disables tiling. From the guide: "N.B.: If you are using an Intel 8xx chipset, tiling cause instability unless you use the Bleeding-Edge configuration. Therefore: if you are using the Safe/Optimal configurations, set tiling to false; if you are using the Bleeding-Edge configuration, set tiling to true." The "Bleeding-Edge" configuration it refers to involved using drivers from the xorg-edgers PPA. I was using the "Optimal" configuration and therefore set tiling to false in my xorg.conf. What I suspect is that Karmic's default intel driver has this tiling issue, and it is enabled by default for those who do not use an xorg.conf. ** Attachment added: "xorg.conf with tiling disabled (among other settings)" http://launchpadlibrarian.net/37715512/xorg_notiling.conf -- [i845G] Karmic stops responding a few minutes after log in https://bugs.launchpad.net/bugs/456902 You received this bug notification because you are a member of Ubuntu-X, which is the registrant for xf86-video-intel. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp