The problem seems to be that there are negative coordinates being passed in to ProcPolySegment:
(gdb) p/x *(xSegment*)&((xPolySegmentReq *)0x2918e1c)[1] $11 = {x1 = 0x24, y1 = 0x10, x2 = 0xfffe, y2 = 0xffff} I don't know who is supposed to catch this. Looking at the call sequence, nobody really makes sure that these values are in bounds. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/416421 Title: [gm45] X crash on X200s with dual monitors (using DisplayPort) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/416421/+subscriptions _______________________________________________ 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