[Openchrome-users] XvMC on cle266 working jumpy/high load suddenly

[Thomas Hellström]

Xavier Bachelot wrote:

>Mario Emmenlauer wrote:
>  
>
>>Hi,
>>
>>
>>I'm going nuts on this problem...
>>I used to have XvMC-accelerated video on CLE266 w/ around 5%
>>cpu using Xorg 7 with Gentoo's x11-drm, xine -V xxmc and
>>video.device.unichrome_cpu_save:1.
>>
>>    
>>
>This xine option is usefull only in some situations.
>It should be enabled only when you don't have "EnableAGPDMA" in your 
>xorg conf, which is the prefered option. Actually, unichrome_cpu_save 
>should only be used with K8M800, which doesn't support the xorg option, 
>iirc.
>
>Regards,
>
>Xavier
>  
>
Also, it is worth noting that the xine cpu save option is a horrible 
hack that requires that the kernel timer tick frequency is 1000Hz or 
above. Some distributions ship their kernels with a lower tick frequency 
in which case the cpu save option will fail.

/Thomas



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