v17 LibreELEC Testbuilds for x86_64 (Kodi 17.0)
(2016-08-11, 13:58)LateAdopter Wrote:
(2016-08-11, 13:37)n2vwz Wrote: Both of my TVs (Sony XBR and Samsung F series) were defaulted to full range when I purchased them. I don't think that it is that uncommon.

It's not as simple as that with my Samsung F6100. With the Intel driver in its default automatic mode and the TV input tagged as "PC" it depends on whether it is a CEA mode or not.

Booting a desktop linux with 60Hz the HDMI link is in sRGB mode and the desktop looks normal. Changing to 50Hz with xrandr or Kodi sets the HDMI to BroadcastRGB and the desktop looks a bit odd, but the video image is good. The only defect is that 59.9Hz is sRGB when it should be BroadcastRGB according to the HDMI standard.

If the TV input is tagged as "STB" the connection is always BroadcastRGB.

With the pass-through driver mode active, it is quite broken in 60Hz "PC" mode because the driver forces BroadcastRGB when the TV and HDMI standard require sRGB. I expect that is why the Intel developers are not interested in the passthough patch.

Passthrough should only be active when both the source and destination require BroadcastRGB

I had problems with pass-thru driver mode as well. With some media, I noticed that small black bars would appear at the top and bottom of the screen when the pass-thru switch occurred. I think that the TV was padding extra black lines at top and bottom when the video switched to a lower frame rate from pass-thru. The media was 1920 x 1080, so there shouldn't have been any change in aspect ratio. I ended up turning the pass-thru feature off.


Messages In This Thread
3D HOU/HSBS issue - by .bismarck - 2016-06-20, 20:03
RE: LibreELEC Testbuilds for x86_64 (Kodi 17.0) - by n2vwz - 2016-08-11, 15:56
[Build #0903] breaks VAAPI - by MichaelAnders - 2016-09-04, 15:37
Update Failed - by n2vwz - 2016-09-27, 19:34
Logout Mark Read Team Forum Stats Members Help
LibreELEC Testbuilds for x86_64 (Kodi 17.0)11