I tried upgrading to Oneiric via aptitude. I can't get oneiric to hard- lock, but there are enough other bugs happening that Unity is unusable.
dmesg has errors like: [ 86.663059] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 102.589323] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 129.330988] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 222.145572] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 237.234037] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 427.898860] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 534.013757] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/821205 Title: machine hard-locks when using two monitors To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/821205/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs