[mythtv-users] MythTV frontend + XVMC + AGP?

sonofzev at iinet.net.au sonofzev at iinet.net.au
Fri Mar 13 03:58:58 UTC 2009

On Fri Mar 13 14:47 , Rich West  sent:

>sonofzev at iinet.net.au wrote:
>> On Fri Mar 13 14:11 , Rich West  sent:
>>> I just bit the bullet and upgraded all of my frontends to Fedora 10
>>> (from Fedora 8), and I have found that I have to finally face the Nvidia
>>> bug (http://www.nvnews.net/vbulletin/showthread.php\?t=118738\) with NvAGP
>>> breaking XvMC.  Ugh.
>>> I had been rebuilding the 100.14.11 driver (the last good working
>>> driver) under Fedora 8 by applying a patch to it.  Unfortunately, under
>>> Fedora 10, I can't get it to compile.
>>> I thought I would fight with the latest driver.  It looks like the only
>>> fix is to set NvAGP to 0, but the side effects of NvAGP disabled seem to
>>> be reducing the WAF (choppy previews of HD recordings (due to higher CPU
>>> utilization?), really really high cpu utilization and the resulting
>>> video drag when skipping forward, backward, or auto commercial skipping).
>>> I know this isn't entirely mythtv related, but I was wondering if anyone
>>> has had any luck with, possibly, compiling 100.14.11 under Fedora 10
>>> (kernel
>>> -Rich
>> Wow, 
>> I don't use Fedora but that's a really really old driver version. 
>> The current stable version on the nvidia site is 180.29. 
>> Some distros even go into the Beta driver which is 180.37. 
>> I suggest you try and download from nvidia directly. 
>> http://www.nvidia.com/Download/index.aspx\?lang=en-us
>I'm currently fighting with the latest stable driver, but as was
>mentioned in http://www.mythtv.org/wiki/XvMC#NVIDIA_2, there has been a
>bug present in the nvidia drivers that require nvagp to be disabled. 
>With newer drivers, if nvagp is enabled, XVMC stops working.
>The last properly functioning driver for this feature was 100.14.11... :(

Okay, sorry I misunderstood. I don't use XvMC as I found the cpu based
de-interlacers gave a better picture (but I do trust VDPAU will be better).. 

But it would depend on the CPU. If it is within 2 or 3 years old, you may just
want to try CPU based de-interlacing. 

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