Ubuntu
xserver-xorg-video-nouveau package

  1. Bug #1040053
  2. Comment #56

Comment 56 for bug 1040053

Revision history for this message
penalvch (penalvch) wrote :

asgard2, thank you for testing Trusty. For now, I'm going to send this to xorg for review, as this would appear to be an issue there, versus the kernel.

Despite this, regarding the information you provided:
ubuntu@ubuntu:~$ xrandr --output HDMI-1-1 --auto
Floating point exception (core dumped)

If your OS is not in too bad of a shape, a window should pop open to allow you the opportunity to report a bug. If not, this should populate a crash file in the folder /var/crash , where it is recommended this is copied to your installed OS, and report from there via:
ubuntu-bug NAMEOFCRASHFILE

Just to clarify, in the best scenario from all the xrandr permutations tested, while the external monitor was working via HDMI in Trusty, the FPS was 1-3, and you would have graphics artifacts?