Hm. That's not the backtrace we're looking for :). SIGUSR1 seems to be used by X in VT switching; enter “handle SIGUSR1 nostop” in the gdb prompt before running X in order to ignore them and wait for the real problem.
-- Xorg freeze https://bugs.launchpad.net/bugs/557895 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau 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