Per comment #17 it might actually be easiest to build a workaround in Mir for now... Either disable secondary compositor threads, or build a SingleThreadedCompositor to replace MultiThreadedCompositor.
In my spare time I'm working on an idea where post() could be made non- blocking. So that would eliminate the need for Mir's compositor to be threaded, and nouveau should then work (as well as it ever did for X). ** Changed in: mir Status: Invalid => Confirmed ** Changed in: mir Importance: Undecided => Medium ** Tags added: multimonitor ** Changed in: qtmir (Ubuntu) Importance: Critical => Medium ** Changed in: qtmir (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs