Problem playing movies on projector [SOLVED]

[IsmoHaa]

I recently bought a Mitsubishi HC4900 projector. Naturally I hooked it up to my Gentoo-box in order to play movies, but there are some odd issues...

When playing a high-def (720p or above) movie on the projector it's dropping lots of frames resulting in either audio sync issues, or jerky playback depending on the player settings. The odd thing is that when playing the same movie on my monitor I get smooth problem-free playback. running "top" while playing the movies reveals that if the movie is played on the projector's desktop, processor usage jumps to 100% as X starts hogging tons of CPU-cycles. (When played on the monitor's desktop processor usage is well below 100%.)

I've tried using both MPlayer and xine, and while the problem seems less serious with xine, it's present with both players. With xine it's as if X ate up 100% of the prosessing power of 1 core, and xine consuming ~30% of the other. With MPlayer it looks as if I had only 1 core where MPlayer & X together would eat up 100% of that one core.

I'm running 64-bit gentoo on an AMD Athlon 64 X2 4800+ with 2GB RAM and a NVidia 5200FX graphics card. The projector is plugged in with a DVI-HDMI-cable, and the monitor with a standard VGA-cable. Does anyone have any idea what's causing any of this?

My xorg.conf-file:

[krinn]

it's because you use your card in a dual head setup (vs a twinview setup).

In dual setup, only 1 head will be hardware accelerate, the 2nd will be software, and without the help of the card, your system is unable to handle the rate.

[IsmoHaa]

[baq]

and there is no way to get hw acceleration to work with twinview on both monitor ? how come ? is it only nvidia driver problem or does ati have the same issue ? separate x screens are too uncomfortably annoying to use