Comment 4 for bug 912797

Hi

I have found some regressions in 4.28.0, I hope this is the right place to post them as I wasn't sure whether to start a new bug or not.

unity:
  Installed: 4.28.0-0ubuntu1
  Candidate: 4.28.0-0ubuntu1
  Version table:
 *** 4.28.0-0ubuntu1 0
        100 /var/lib/dpkg/status
     4.24.0-0ubuntu2.1 0
        500 http://gb.archive.ubuntu.com/ubuntu/ oneiric-updates/main amd64 Packages
     4.22.0-0ubuntu3 0
        500 http://gb.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages

What happens:
- When switching workspaces (using Ctrl+Alt+Arrow key) the screen flickers black for a short period of time.
- When changing between the workspaces the previews in the workspace switcher turns black (when using Ctrl+Alt+Arrow)

What should have happened:
- There shouldn't have been any flicker when changing between workspaces
- There previews in the workspace switcher should not have gone black.

I have attached a screencast of these regressions occurring.
From the video you can see that the screen flickers black when changing workspace and that the workspace switcher previews go black (or very dark) after a period of time.

Hope this is the right place to post regressions for 4.28.0.

Many thanks

Andy