[axbmcuser]

It does not. Could be a known feature by your TV ... "optimizing Contrast" or something. Try xbmc Limited option unset and keep your hdmi on limited (remove the xrandr hack) and compare.

My many years old limited-rgb-range 46" LCD has almost no post processing. The pp-options that are there are fully deactivated.

In summary:

xbmc limited unset, no xrandr hack -> test images display correctly in thumbnail and full screen
xbmc limited set, xrandr full RGB -> test images display correctly in thumbnail but blacks are crushed in full screen

I don't pretend to understand this, but thought you might be interested ....

Similar results here (Limited range LCD, HDMI connected directly without AVR):

Case 1:

xrandr to FULL range
xbmc range setting checked (=LIMITED)

Picture THUMBNAILS blacks okay
Picture FULLSCREEN blacks crushed
Video THUMBNAILS blacks okay
Video FULLSCREEN blacks okay

Side note:
When the black-level-test-image is put in a video, the blacks are not crushed! Only fullscreen picture seems affected.
So after all it really may be a problem regarding fullscreen-pictures being processed differently than fullscreen-videos? I don't have any other explanation.
I even put out my old media player to compare the same videos and pictures and on the old player picture and video give the same result.

Case 2:

xrandr to LIMITED range
xbmc range setting NOT checked (=FULL)

Picture THUMBNAILS blacks okay
Picture FULLSCREEN blacks okay
Video THUMBNAILS blacks okay
Video FULLSCREEN blacks okay

So you would guess Case 2 would be unlogical UI-wise for a limited-rgb-range TV, but still worth testing.

If i understood lmyllari correctly, Case 1 would be the preferred way for a limited range LCD (and more logical in terms of UI).
Since i don't use pictures at the moment, i don't mind that much which way i'm using. But if we can work towards a fix, would't hurt, would it? I'll stick with preferred Case 1 for now.

If i can do more testing to narrow the potential bug down, please let me know.

Greets!



BTW: Also to confirm: Everything else seems to work great since the kernel USB-bug was patched. Live-TV/PVR more stable than ever (even compared to my beloved 3.2.4 build from lmyllari)