I have managed to get an Xorg backtrace for when the server dies after running 'xclock' and after running 'qtnx'. The server dies from a segmentation fault when dealing with fonts. The xclock gdb backtrace is attached, and the qtnx backtrace will be attached in the next comment.
** Attachment added: "Xserver backtrace for segfault after running xclock" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/876706/+attachment/2555435/+files/gdb-xorg-xclock.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/876706 Title: x server restarts unexpectedly after starting qtnx or xclock on Dell Precision T5500 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/876706/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs