Comment 206 for bug 729979

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