Created attachment 107747 [details]
Xorg.log

I'm developing diskless client for MythTV. 
I done some tests with kernel3.16.5, libdrm 2.4.58, Xorg1.16.1,
Mesa10.2.8/10.3, xorg-f86-ati 7.5.

On Brazos (HD6310, r600) all works well.

However with Kabini (HD8210, radeonsi) I have tearing on interlaced video with
MESA vdpau deinterlacer.

It looks like tearing is only on:
-interlaced content 
-on radeonsi.

As r600 deinterlacer works perfect - for me it looks like bug is in radeonsi
deinterlacer. 

Xorg and vdpauinfo logs attached.