Also I think my gfx card can only do 1024x1024 size in xv (Matrox G550)
and if that's a true limitation of my gfx card, where I could find
information on how to find which gfx cards can do more ?
I use a Matrox G550 too and xine's drivers vidix / vidixfb keep the CPU load
low on normal channels (720x576). But with HDTV (1920x1080) the driver runs
into the mentioned hardware limitation. So I currently use xshm / fb for HDTV
where I'm not able to replay it fluently at 1920x1080 but just at 50 % of the
original resolution (press "Alt+1" in xine).