Did you try that LIBGL_ALWAYS_INDIRECT=true thing given in the end?
As in your case, my effects were also working but flickered while doing
anything. But using that option fixed the flickering problem, The big reply
by Rog131 in the forum post has given two links in the end which explain the
source
Sorry, I posted the wrong link, here is the correct link
http://kubuntuforums.net/forums/index.php?topic=3113529.0
On 10/13/10, Wojciech Ryrych wrote:
> Apoorv: I can't see the workaround in the source you gave. There's only
> an overview there.
>
> --
> Screen is flickering with enabled composit
