Here's my setup:
PC ----HDMI----> AVR (Sony STR-DN840) ----HDMI----> TV (Panasonic P60ST60)
Nvidia GTX 670
Here's the problem:
I have all my devices hooked up to my TV through my AVR (cable box, PC, etc...) and all non-PC devices display perfectly. When I display my desktop or browser on my TV, everything looks correct. When I open a media player (XBMC or PotPlayer) and try to play any of my DVD or BD rips (.VOB straight off DVD or .MKV off BD, all uncompressed), the colors are really really dark. Night scenes are unwatchable and even scenes inside of lighted rooms are darker than they should be. I know my TV is calibrated correctly (or very close) based on my other input sources. I have used the Windows color calibration tool on my TV and can't get the gamma setting quite right, but it's pretty close. Oddly enough, playing videos on VLC displays them correctly on either my monitor or TV (but no DTS passthrough so no good). When I watch the video on my computer monitor, it looks fine. When I pause it and drag the player over onto my TV, it still looks fine. As soon as I press play, the scene instantly darkens. The reverse also happens. If I drag it onto my monitor while paused, it looks dark. As soon as I press play, it displays correctly. I've changed my settings in Nvidia Control Panel to output 16-235 on my HDMI out to my receiver, but it doesn't have any effect at all. Like I said, I've tried multiple media players, and they all look terrible on my TV but great on my monitor. I doubt my receiver is the problem because other sources look correct. I'm fairly certain from researching elsewhere that the problem lies in the colorspace issues others have seen (0-255 vs 16-235), but all attempts to correct this have failed. Any suggestions?