Intermittent system freeze

[fred]

Hello good people of the INTERNET

Ok here my spec

P4 3.0 @ 3.6 1 Gb of ram
HD 2600 Pro AGP

Mandriva Linux 2009 latest catalyst driver 9.2

Here is my problem When compiz is enable (And also in some game like Glest even when compiz is disable) I have intermittent system freeze that last from a few second up to 45,60 sec. X become completely unresponsive. No mouse no Keyboard. This happen the most often when I'm using Firefox to browse the web or when watching a video (X11 output).

So anybody has a clues has to why or how ?

[bridgman]

Just to be clear, the system freezes for a while then starts running normally again ?

If you pastebin your xorg log and dmesg output there might be some clues there.

[fred]

yes compiz just run fine after

here is what in my xorg.log

Warning: LookupDrawable()/SecurityLookupDrawable() are deprecated. Please convert your driver/module to use dixLookupDrawable().
(II) fglrx(0): atiddxDisplayScreenLoadPalette: numColors: 256
(II) fglrx(0): atiddxDisplayScreenLoadPalette: numColors: 256
Warning: LookupWindow()/SecurityLookupWindow() are deprecated. Please convert your driver/module to use dixLookupWindow().