Solved: jerky picture with live MythTV (non-free ATI drivers)

I had a problem with the live (Watching) TV picture stuttering badly in MythTV. The recordings worked just fine when played back with Totem, so the problem was not with the signal but with MythTV’s playback.

The solution for me turned out to be uninstalling the non-free binary drivers for my ATI Radeon display adapter. I had installed them right after installing Ubuntu, but after uninstalling them I can now safely say that it was a mistake installing them in the first place.

Apart from Miro now playing back FLVs with the colors all wrong, I’ve had no problems, MythTV no longer suffers from jerkyness and I get to enjoy all the nice desktop effects which didn’t work either with the proprietary drivers.