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-   -   AGP 2x?! (http://www.nvnews.net/vbulletin/showthread.php?t=8402)

darkfame 03-07-03 09:33 PM

AGP 2x?!
Acording my XFree LOG, my GeForce Ti4600 is running on AGP 2x. Could this be why I have performance issues under Linux? Isn't this a 4x card? How to fix?

Delleon 03-07-03 10:14 PM

This should tell you what your card is capable of:

'cat /proc/driver/nvidia/agp/card'

This should tell you what your AGP chipset is capable of:

'cat /proc/driver/nvidia/agp/host-bridge'

If both of the above support AGP 4x, then you can force it by running:

'insmod nvidia NVreg_ReqAGPRate=4'

If this causes your system to freeze, you may need to tweak your BIOS settings a bit.

Thunderbird 03-08-03 02:39 AM

On various chipsets 4x AGP and stuff like FW and SBA can be unstable. The drivers detect what is best for your system. It doesn't really matter if you are using 2x or 4x since both are about as fast. Sometimes 2x is faster and sometimes 4x. If AGP would be off or running at 1x it would be slower.

darkfame 03-08-03 07:58 AM

I see, but I have some performance issues.
The framerate is a bit jumpy... Is this usual for the linux driver? This doesn't happend when I use the Windows driver (which I seldom do nowadays).

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