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Which AGP driver is best with NVidia?

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  #1 (permalink)  
Old 02-21-2008, 08:59 AM
Unknown
 
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Default Which AGP driver is best with NVidia?

I'm using the NVidia drivers and they work ok but I wonder if I'm getting
the best out of them.

bash-2.05b$ cat /proc/driver/nvidia/agp/status
Status: Enabled
Driver: AGPGART
AGP Rate: 4x
Fast Writes: Disabled
SBA: Disabled
bash-2.05b$


It appears I'm using the kernel AGPART driver but would using the
NVidia driver provide better performance? If so, how do I do it?
I assume I can just modify the Fast Writes and SBA options in

/etc/modules.d/nvidia

but are they stable and safe to use?


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  #2 (permalink)  
Old 02-21-2008, 08:59 AM
Sybren Stuvel
 
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Default Re: Which AGP driver is best with NVidia?

Unknown enlightened us with:
> Fast Writes: Disabled
> SBA: Disabled


If your card and mobo support those, enable them. Here is my
/etc/modules.d/nvidia:


alias char-major-195 nvidia
alias /dev/nvidiactl char-major-195
options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1 NVreg_ReqAGPRate=8

Works just fine on my box.

Sybren
--
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself?
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  #3 (permalink)  
Old 02-21-2008, 09:02 AM
jim
 
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Default Re: Which AGP driver is best with NVidia?

Unknown wrote:

> I'm using the NVidia drivers and they work ok but I wonder if I'm getting
> the best out of them.
>
> bash-2.05b$ cat /proc/driver/nvidia/agp/status
> Status: Enabled
> Driver: AGPGART
> AGP Rate: 4x
> Fast Writes: Disabled
> SBA: Disabled
> bash-2.05b$
>
>
> It appears I'm using the kernel AGPART driver but would using the
> NVidia driver provide better performance? If so, how do I do it?
> I assume I can just modify the Fast Writes and SBA options in
>
> /etc/modules.d/nvidia
>
> but are they stable and safe to use?

I have found the NVidia module to give better performance.
Sometimes the kernel module gets better glxgears frame rates, but when
running some gl app, the NVidia module appears obviously better, and for
display, appearance is everything.
--
jim
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