Devices > Video Cards, Monitors, Televisions, and Projectors

madVR able to output non-HDMI 2.0 (HDR) Video Mode?

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Jong:
You are right to say there is precious little "real", i.e. not demo 2160p/60 or 2160p/50 (same HDMI bitrate) HDR stuff right now. For most HTPC users 24p/25p is by far the most important. But in future most live broadcasts - sport and concerts etc. will need it (before HDR takes off anyway!).

 Yeah, what I am seeing shouldn't be possible, or rather technically it is but it's outside of HDMI 2.0.

I've concluded it's a driver bug. It should reduce what it gets from MadVR down to 8-bit to stay in spec and it's not.

It's easy to stop MavVR doing 10-bit. In fact it does 8-bit by default. But, if you want HDR10 for 24p and you don't want to reconfigure just to play a different frame rate it can get a bit messy! But, anyway, it's pretty clear now it's not a problem with MC or MadVR, so I'll just work around it til it's fixed.

tij:
not sure about US ... but from thailand curent HD stuff from cable or sattelite is 720p or 1080i ... so i doubt they will do 2160p50/60

... only potential problem for me is upscaling dvd to 4k and running it in 50/60hz ... i think atm i run some profile in madVR to force it into 8bit at 2160p50/60

mojave:
Several things:

* If you move the mouse to the top of the screen during playback and the JRiver overlay comes up, madVR will always drop into 8-bit output mode.
* With Windows 10, you don't need to use exclusive mode for 10-bit output. I prefer Windowed mode so you aren't dropping in/out of exclusive. I haven't noticed any improvement to queues or quality when using exclusive mode.
* Some displays require YCbCr 4:2:2, 2160p, 10-bit or higher to trigger HDR mode. It is better when using madVR to use the option "convert HDR content to SDR by using pixel shader math." This does a frame by frame analysis of the image, allows one to preserve the wide color gamut, and can gives one nice control over the tone mapping curve. Another benefit is that you can still use 2160p, RGB, 10-bit output to the display to prevent compression by the graphics driver.

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