I have a similar problem. I am using Kubuntu Intrepid on a IBM Thinkpad T42p with ATI FireGL MobilityT2 video card. I also use the opensource driver, in my case the radeon module gets loaded.
Only difference is that using xrandr to enable dual-monitor setup with my external display with xrandr --output DVI-0 --auto --above LVDS freezes the complete machine. Only option is to switch off via the power button and reboot. This also roughly happens in 70% of the cases, I try to do it. I have found no backtrace in my xorg.log but I will attach it nevertheless. However, I noticed, that if I kill plasma with killall -9 plasma before using xrandr the external display gets activated correctly. Afterward I just reload plasma from the terminal and everything works fine. So, I would guess that this problem might be related to plasma as well. ** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/18867429/Xorg.0.log -- crash of Xorg using xrandr https://bugs.launchpad.net/bugs/273505 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
