I have an AMD Athlon XP2000+ with a Matrox G550 card. I used to use it with satisfactorily with FC4. I recently upgraded to FC5, and I'm finding that the graphics performance is quite poor. The major problem was Firefox, and I solved that by telling firefox not to use Pango (and by extension Cairo -- as I understand it) with the MOZ_DISABLE_PANGO=1 environment variable. However, the same problem afflicts all GNOME applications. Slow redraws and generally sluggish feelings and high CPU usage generally -- gfx seem particularly badly affected when heavy CPU using programs are used. I notice it particularly with Nautilus in List view mode... which, as a naive assumption, I take to be because it has lots of text. The slow down doesn't seem to affect Nedit (which doesn't use Pango). For example, resizing a GNOME terminal window when it is sitting on top of GNOME app with lots of text, I can practically watch the GNOME terminal window redraw itself. This... well... sucks, and is a pretty major regression from FC4, especially since the Matrox G550 has Free software drivers. Is it ever likely to get fixed, or am I just stuck? Is there anyway to get Pango in FC5 not to use Cairo (assuming that is the culprit)?
