[mythtv-users] Can't get glx to load

[Michael T. Dean]

On 01/27/2006 03:16 PM, Jerry Rubinow wrote:
> On 1/27/06, Michael T. Dean <mtdean at thirdcontact.com> wrote:
>   
>> On 01/27/2006 02:57 PM, Jerry Rubinow wrote:
>>     
>>> On 1/27/06, Michael T. Dean <mtdean at thirdcontact.com> wrote:
>>>> On 01/27/2006 01:25 AM, Jerry Rubinow wrote:
>>>>> Today I switched from an nvidia card to onboard sis, and in the
>>>>> Xorg.0.log it's still trying to load nvidia's glx extension and
>>>>> failing to initialize because I'm now loading the sis driver.
>>> The main reason I want to reduce CPU usage at this point is that I'm
>>> playing back 720p HD using libmpeg2 and the CPU is bouncing between
>>> around 80% and 93%+, with the result that I'm getting stutter.  I'm
>>> looking for anything that I can do to reduce the CPU load.  I'm
>>> running a 2.8GHz P4, and I know people have talked about doing HD on
>>> 2.4 GHz machines, so I'm not sure why it's so high.  I'm not running
>>> any deinterlace.  Can't do XvMC on Sis.
>> So, why are you getting rid of the NVIDIA card (which can do XvMC)?  I'd
>> say the XvMC is your best bet.  Any other method of reducing CPU usage
>> is likely to provide negligible gains during playback--that is any
>> method short of transcoding HDTV to a lower resolution.
>>     
> Because a Pundit motherboard only has PCI slots, and PCI doesn't seem
> to have the bandwidth for HD.  I'm not sure how much lower XvMC's
> bandwidth requirements are (if at all) than non-XvMC video, but I was
> never able to get XvMC to play acceptably over the PCI.
>
> The on-board Sis, on the other hand, seems to have the bandwidth, and
> I _should_ have the CPU, but I'm not sure why it's getting maxed out. 
> I compiled Myth with O3 and the processor-specific option.
>   

Ahh.  So, at this point I have to punt and say my only suggestion is a 
different frontend :( or transcoding to a lower resolution.  Perhaps 
someone smarter has better suggestions.

Mike