** Description changed: On the IBM T20 laptop using the Savage drivers, when gdm starts X, the screen stays black with a "_". The sound is initialized (I can hear the startup sound) and I can login through SSH. The screen gets initalized every 3 to 4 times of startup but I can't decern a pattern. This has always worked in previous versions of Ubuntu. Workaround: Add this to the Device section of xorg.conf: Option "BusType" "PCI" + + According to + http://www.thinkwiki.org/wiki/Problem_with_video_related_system_lockup: + + The problem of lockups or video corruption as a result of 3D rendering + is [not] well-known/understood. There appears to be a bug in AGP on + Thinkpads interacting with Savage graphics cards. For reference, there + was a recent discussion of this problem on the Linux-Thinkpad Mailing + List. If you are experiencing lockups related to 3D rendering (using + DRI) and you are using an XOrg version more recent than 6.9/7.0, you may + need to add one or both of the following lines to the Devices section of + your xorg.conf file: + + Option "BusType" "PCI" + Option "DmaMode" "None"
-- [agp] X.org does not initialize screen on IBM T20, T21, T22 https://bugs.launchpad.net/bugs/33617 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
