2013-07-05, 18:52
xbmc uses SwapBuffers to make "sync". It uses a front and a backbuffer. When you now start to use a Triple Buffering approach. xbmc does not know for sure what already was on the screen and what will come later. This has big influence of A/V Sync and output.
Concerning the HDMI1/2 port, this could be an additional issue, if it is syncing to the wrong "Monitor" and clocks differ. Try to disable one screen (via the Settings Addon), newest testing should have it.
Can you post your Xorg.0.log and your xorg.conf, that you used to make this logfiles?
Concerning the HDMI1/2 port, this could be an additional issue, if it is syncing to the wrong "Monitor" and clocks differ. Try to disable one screen (via the Settings Addon), newest testing should have it.
Can you post your Xorg.0.log and your xorg.conf, that you used to make this logfiles?