[mythtv-users] prebuffering pause related to agpgart?
Thomas Börkel
thomas at boerkel.de
Thu Jan 20 01:40:37 EST 2005
HI!
Darren Richards wrote:
>>I have had the same problem with 2.6.9 and FC2 (Celeron 1.3 GHz). I have
>>come to the conclusion, that you cannot use NVidia's AGP driver, if
>>AGPGART is compiled into the kernel (I have tried several kernel boot
>>parameters to get rid of AGPGART unsuccessfully).
>>
>>So, I have set NvAGP=3 in xorg.conf and so AGPGART is being used (again
>>check /proc/driver/nvidia/agp/status).
>>
>>X is still using CPU, but much less (13%). I don't know, if it would use
>>only 1% CPU with NVidia-AGP, as it does on another machine with
>>FC1/Kernel 2.4/NvAGP=1 or if the higher X usage is coming from
>>FC2/Kernel 2.6. At least the prebuffering pauses are gone with AGPGART.
>>
>
> NvAGP=3 didn't seem to help much. I think I'm seeing fewer
> prebuffering pauses, but X is still taking about 40% and mythfrontend
> is taking about 55%. If I enable kernel deinterlacing (which I used
> with FC1), I still get a prebuffering pause every 2-3 seconds.
Is AGP enabled now (/proc/driver/nvidia/agp/status)?
> It looks like my only solution is to compile the kernel without
> agpgart, unless there's an rpm package out there somewhere. I've
> never compiled a kernel before...
It's not too hard. There should be plenty of HowTos on the web.
Thomas
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