Posts by avalones

Quote from cinemaONE

It is not wrong, but the device is simply an HDFury VRROOM, an HDMI switch that sits between the NUC and the projector. Its status page shows what arrives on each input, read from the signal itself, including the AVI InfoFrame the source sends. That is where "RGB L 12b" comes from: RGB, tagged limited range, 12-bit. Nothing on the NUC reports this, which is what made it useful here: it shows what the driver actually signals, independent of what Kodi or the kernel believe they are sending.

Thanks, i'm have HDFury DR-HDMI-8k, but this one only get EDID, not real stream infoframe. Will check some hdmi grabber for test capability of decode this one (i'm have several), or will wait for HDFury Luma (this one already in late devepolment phase) for checking hdmi real output.

Probably RPI4 will aslo help with tests, will check this one too.

Thanks for description of you HDMI chains and device capability, are Claude have IP control of HDFury VRRoom or you check output hdmi flow capability manually?

Quote from cinemaONE

On the wire the NUC sends RGB 12-bit and the HDMI analyser reports it as limited range. In the amdgpu source the output colour space for RGB stays full range unless the "Broadcast RGB" connector property is explicitly set to Limited (Automatic is treated as full), and the AVI infoframe only says "full" when a sink-capability bit (qs_bit) is set, which nothing in amdgpu_dm ever sets. Result: full-range pixels tagged as limited.

what hardware (or capture device/software) you use for "HDMI Analyser reports it as limited range", or this one is software info from NUC?