Intel, xrandr and performance.

[Łukasz Maśko]

My laptop has an Intel 945GM graphics chip. Right now I'm using Intel driver 
2.9.1. It works pretty well, but... 

If I turn on my secondary display with xrandr (it is an LCD screen connected 
via DVI, I'm setting it as a cloned display), graphics performs much slower. 
It concerns video and OpenGL (desktop effects inder KDE4). About a month 
ago, before I switched to KDE4, under KDE3 everything was working OK using 
the same hardware configuration.

Is it just a general case, or I have something not correctly configured?
-- 
Łukasz Maśko                                           GG:   2441498    _o)
Lukasz.Masko(at)ipipan.waw.pl                                           /\\
Registered Linux User #61028                                           _\_V
Ubuntu: staroafrykańskie słowo oznaczające "Nie umiem zainstalować Debiana"