Ok, so I think it is something rather odd on my system. Rebooting produces a similar result, but I do get and X crash (possibly in the nvidia driver) and a unity crash on logging in. both recover and let me continue, but I think it is dropping me down to a partial unity-2d interface.
I have just disabled acpi with acpi=off on my grub options to work around another issue where my cpu was stuck at 800mhz scaling. This time, I no longer got crashes on login, and myunity now sees me as not being 2d. ps also no longer shows any unity-2d processes. ps -ef|grep "meta\|unity\|compiz" anton 4533 4455 15 08:13 ? 00:00:09 compiz anton 4762 1 0 08:14 ? 00:00:00 /usr/lib/gvfs/gvfsd-metadata anton 4824 1 4 08:14 ? 00:00:01 /usr/lib/unity/unity-panel-service anton 4935 4533 0 08:14 ? 00:00:00 /bin/sh -c /usr/bin/compiz-decorator anton 4969 1 1 08:14 ? 00:00:00 /usr/lib/unity-lens-applications/unity-applications-daemon anton 4971 1 0 08:14 ? 00:00:00 /usr/lib/unity-lens-files/unity-files-daemon anton 4974 1 0 08:14 ? 00:00:00 /usr/bin/python /usr/lib/unity-lens-video/unity-lens-video anton 4975 1 0 08:14 ? 00:00:00 /usr/lib/unity-lens-music/unity-music-daemon anton 5070 1 0 08:14 ? 00:00:00 /usr/bin/python /usr/lib/unity-scope-video-remote/unity-scope-video-remote anton 5724 5022 0 08:14 pts/0 00:00:00 grep --color=auto meta\|unity\|compiz I am closing the bug as invalid. ** Changed in: myunity (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/962102 Title: myunity reports unity is in 2d mode when it isn't To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/myunity/+bug/962102/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs