Hi,
just a guess, but perhaps the graphics card needs more memory in dual head mode, therefore being unable to use DRI?
cheerio, Peter
Georg Holzmann wrote:
Hallo Frank!
Thanks for the fast answer!
Also you need to enable DRI in /etc/X11/XF86Config[-4] like:
Ah - this is the problem. Yesterday I loaded my XF86Config-4 for dual screen and so I have this bad performance. But I don't understand why, I have the same settings (only an additional monitor:) - maybe I must specify something special for dual screen (xinerama) ?
Here are my XF86Configs: http://grh.mur.at/XF86Config-4.dual_head http://grh.mur.at/XF86Config-4.single_head
with the single_head DRI works ...
LG Georg