>From the testing, so far it sounds like it can be reproduced outside unity, and the dmesg errors mean that it's the driver failing not unity. Closing out the unity tasks.
Also, it appears people see it whether using one or two monitors, so this suggests its not a multi-monitor issue. ** Changed in: unity (Ubuntu) Status: Triaged => Invalid ** Summary changed: - Dual monitors black out and session freezes, might be linked to switching workspaces + Monitor(s) black out and session freezes. "NVRM: GPU at 0000:01:00.0 has fallen off the bus." -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/882710 Title: Monitor(s) black out and session freezes. "NVRM: GPU at 0000:01:00.0 has fallen off the bus." To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/882710/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs