Hello, I registered in this forum to post some bugs, I don't know if it's only my TV, but I think it's for all.
I recently purchased a Q8DN (wich is the same as american Q8FN), and first when swiching into game mode with an xbox one, the backlight sometime flickers, seem that the antiflicker doesn't kick correctly soemtimes, I can correct this by swiching off/on the game mode, the panel will display correctly. Maybe it's my Tvs own problem.
But this oter one looks to be a generic problem, and I think that's why so many people are struggling with this option:
When I select "color space", in the menu you have "native", "auto", "custom".
Well, I can 100% say that "auto" option just copyes "custom" color space option but doesn't copy red/blue/green parameters, so if you change "custom", it changes auto too, so AUTO is a dull option for now, it does not change by signal.
You can test this:
-Put your custom menú at default values
-change quickly between native, auto, and original
-Change aunto (only color space) for example to DCi-3p
-Change quicly between native, auto, custom.
Yep they are just the same in both cases, when changing color in custom mode, it sjust copyes custom personal option.
I have noted that if you change magente/blue/green parameters in custom, does not translate to "auto option", but it translates color space, It uses color space from custom and default TV values for coloring.
The only right color option for me now is use personal and select the correct one manually.