I wish to add on a couple of details. First, if the external monitor is plugged in when I boot the system, I can freely switch between laptop monitor and external without problems. If I ever unplug the external monitor and plug it back in, or if I plug it in after the system is booted, then trying to run any xrandr command (including xrandr --dry-run) locks the system.
Second, I find that in /var/log/messages, I have a block of 20 to 30 ^@ characters and then normal bootup messages, as if the last program logging to syslog dumped null data before crashing and then the system booted up normally. -- [i945gm] [karmic] X servers hangs when settings up dual monitor config https://bugs.launchpad.net/bugs/438000 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ 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
