Comment 11 for bug 1052253

I don't know about the differences too. There is no reason whatsoever to not use opengl on my frontend, being a Shutle XS35gtv2. It was just a habit originating from years ago, when I used different hardware. This morning I suddenly remembered this habbit and changed to opengl, as I didn't see any hardware related reason to stick to the habbit. And what do you know, problem solved!

I suspect (but I can not prove it at this time) that there might be an issue with the QT painter on Debian Squeeze.
Also, to compile a descent up-to date version of mythtv (fixes/0.25 branch), or for that matter xbmc + tvheadend, I'm using some non-standard repo's. That complicates the search to the origin of this issue. My sources.list looks like this:

# deb http://ftp.nl.debian.org/debian/ squeeze main

deb http://ftp.nl.debian.org/debian/ squeeze main contrib non-free
deb-src http://ftp.nl.debian.org/debian/ squeeze main contrib non-free

deb http://security.debian.org/ squeeze/updates main contrib non-free
deb-src http://security.debian.org/ squeeze/updates main contrib non-free

# squeeze-updates, previously known as 'volatile'
deb http://ftp.nl.debian.org/debian/ squeeze-updates main contrib non-free
deb-src http://ftp.nl.debian.org/debian/ squeeze-updates main contrib non-free

deb http://backports.debian.org/debian-backports squeeze-backports main contrib non-free
deb-src http://backports.debian.org/debian-backports squeeze-backports main contrib non-free
deb http://debian-multimedia.informatik.uni-erlangen.de/debian-multimedia/ squeeze main non-free
deb-src http://debian-multimedia.informatik.uni-erlangen.de/debian-multimedia/ squeeze main non-free
deb http://debian.oppserver.net/xbmcvdr/ squeeze main non-free contrib
deb-src http://debian.oppserver.net/xbmcvdr/ squeeze main non-free contrib
deb http://debian-multimedia.informatik.uni-erlangen.de/debian-multimedia/ squeeze-backports main
deb-src http://debian-multimedia.informatik.uni-erlangen.de/debian-multimedia/ squeeze-backports main

Bottom line:
using opengl 25.27 works just fine (well, loading the thumbnail to the left of the summary seems to be a bit crappy every now and then, but I didn't look into that as it is not important to me). And I'm really glad with the text-zoom feature in the detailed summary window (or what you call it) making it readable from the couch.

Next week I'll install ubuntu precise on a test machine I have at hand, and see if it won't be reproducable for me too. That should narrow down the amount of possible causes, I think. (or not)
I'll let you know.