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Graphics Card mtrr tweaking - invaluable info

post #1 of 7
3/16/04 at 12:38pm
Thread Starter 
http://www.rage3d.com/board/showthre...eadid=33736241

Check out that thread - turns out my lilnux install was using only 16 MB of the graphics cards memory - once the tweak was applied all my games looked and ran better. The difference in RTCW ET was unbelievable.
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post #2 of 7
3/17/04 at 11:29pm
Cool find, Bratag! I'll see if I have the problem when I have a chance to boot my Gentoo.

Have a good night.

Mikhail
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post #3 of 7
3/18/04 at 12:09am
I checked out mine yesterday. It shows no errors, and the correct 128M, but I'm not using the fb in the kernel either.
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post #4 of 7
3/19/04 at 8:14pm
I think that there's something wrong with the mtrr code in the ati drivers. (I don't know; I didn't write them.) But when the graphics card is initialized, the driver is supposed to set up the mtrr correctly. When I use DRI or a framebuffer console, my mtrr is correctly initialized at 128M, and it's only the ati drivers that give me overlapping issues that I have to correct manually.
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post #5 of 7
3/22/04 at 11:35am
Thread Starter 
Indeed thats true - the problem does lie with the ati drivers - if I didnt use 3d I would purely use the vesa dri drivers ... but I cannot kick my RTCW habit
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post #6 of 7
3/23/04 at 12:16am
Wonder if there's a fundamental difference in the 5680 vs my 5670. I get no overlap at all. I'm running the 3.2.8 drivers. How about you guys.
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post #7 of 7
3/23/04 at 12:57pm
Thread Starter 
Its possible - the error could also be related to the drivers with the 2.6.x kernel.
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