Originally Posted by Solid-State
Yeah keep us posted. See I helped ya stick the pixel format... I could possible help with the sync issue as well.
Make sure you don't have "Image scaling" enabled by unchecking "Enable GPU Scaling" under Properties (Digital Flat Panel). Also make sure the LCD overdrive function is disabled. Then under video playback make sure "enforce smooth video playback" is disabled. I'd also disable the colour processing. I'm not familiar with the Plex branch of XBMC. But you've given me a reason to try it this evening with AMD/ATI HD 5950 in my HTPC. I'll report back.
I have the same problem as the starter of the thread.
I select Pixel format limited RGB but after a while it reverts back to the "previously selected" choice. To minimize the problem i selected ypbpr4:4:4 and the rgb limited so it reverted to ypbpr.
Above solution did not solve the issue
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