I have recently built a Windows 8 HTPC with plenty of horsepower. I use XBMC 12.2 and all my movies play great in their native format in MKV. Almost all my movies are uncompressed blu-ray MKV files stored on my server. However yesterday I went to watch the movie 300 on the machine and it played with tons of pixalation and flashing white screens. It was unwatchable. I then tried to watch the same movie on my upstairs HTPC running on Windows 7 using XBMC 12.2 and it played fine.
I am now wondering if I have XBMC configured incorrectly on my new Windows 8 machine or I do not have the proper codecs on this machine.
Things I have tried.
Changing audio selection of file.. no real change.
Changing from HDMI to analog for audio.. no change.
Anyone ever run into this problem? Any advice or things to look in to.
I would fiddle with the video playback settings. Try it with/without hardware acceleration, sync to display, match refresh rate, that sort ot thing.
I've found what works for some of my movies doesn't for others and I am forced to change some of these settings. Worth a look.