Another note: The current dmesg reports an intel driver warning: Apr 06 11:25:40 hostname kernel: WARNING: CPU: 1 PID: 6 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_pm.c:3572 skl_update_other_pipe_wm+0x16c/0x180 [i915]
followed by a stack trace. This is likely to be irrelevant to the issue: this only started to appear after upgrading to intel-provided drivers. This warning was not present just after installing Ubuntu 15.10. However the issue reported in this bug report was happening both before and after the intel driver upgrade. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1566759 Title: Full system lockup after attaching external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1566759/+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
