Comment 8 for bug 425372

Darkjavi, as a general rule we prefer people report bugs using 'ubuntu-bug xorg' since that includes information we need to troubleshoot (I typically only work on bugs reported that way). Alternatively you can run 'apport-collect 425372', which will attach that information to an existing bug report.

Since there were fixes between alpha-5 and now, can you re-test to see if this issue still occurs with the released ubuntu, and if so post the 'apport-collect 425372' info? A photo of the screen showing the corruption might help too, although since this is a proprietary driver there may be limited options we can do in ubuntu to address it.