I've been through and reproduced this bug on every release since Precise, using exactly Matthias' test case from comment #202. All my tests were on 64-bit installs, totally up-to-date, with newly-created home directories.
I have not yet personally seen this happen with nouveau, only the proprietary nvidia driver. 02:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2) Precise (nvidia-331, lts-saucy stack): restored window is white Quantal (nvidia-304): restored window is transparent Raring (nvidia-310): restored window is transparent Saucy (nvidia-319): restored window is black Trusty (nvidia-331): restored window is black ** Tags added: precise quantal raring saucy trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/729979 Title: [nvidia] Windows appear blank white To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/729979/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs