[Mactel-linux-devel] AppleTV update

[Scott D. D. <da...@4p...>]

I think I've resolved the hang/green video corruption under xvmc 
decode of 1080i mpeg2 content with the AppleTV.

enable Coolbit is xorg.config then;

nvidia-settings -a GPUOverclockingState=1
nvidia-settings -a GPU2DClockFreqs=200,800

This underclocks the gpu and overclocks the vram for 2D which is what 
xvmc uses.

Glitches are gone for both mplayer and myth (both of which use 
ffmpeg). I've had mplayer running for over 12 hours continuous doing 
xvmc 1080i mpeg2 decode and it's still going strong.

Underclocking the gpu from 360MHz to 200MHz is primary. I've 
overclocked the vram from 720MHz to 800MHz as xvmc decode seems more 
sensitive to this parameter. I don't notice any differences in decode 
performance by underclocking the gpu.


Scott