[mclingo]

FYI -

HDR toggle no longer works with latest two versions of AMD drivers, i've had to go back to 18.2.2, mainly for other reaosns though, later driver may work but 18.5.2 and 18.6.1 no longer trigger the HDR mode on TV's.

I've logged this with AMD and added a bug report on MADVR in case there is a workaround that MADSHI can apply.

Doesnt with with windows 10 1709 or 1803.

Odd, it still engages HDR on my machine with 18.5.2 and disengages (rx480) it.  And i'm on 1803.  But i have that blown out reds like you reported with SDR material and dx11 presentation path.  Does 18.2.2 not give that blown out reds?      

 here's the thing, I'm sure it was working for me fine too with 18.5.2 but I cant be sure, all I know is that I can only get it working with 18.2.2, i'll check the blown out reds and report back.

EDIT - blown out reds are back for me, I need to look into this further then, what I really need though is someone on 1709 who can confirm their is working ok with later drivers, both HDR and REDs

I make notes of all issues I have just in case, i'm going to go through to remined myself how I fixed the reds last time.

EDIT 2 I fixed me blown reds last time by installing 16.8.1 which fixed it, then installed 18.2.2 over the top and it remained fixed, this was likely a fluke but ill try it again

EDIT 3 - 16.8.1 fixes blown out reds but 18.2.2 broke it again for me, cant fix this at all now, even tried 18.2.1 on a fresh install. Cant use 16.8.1 because its too old, HDR doesnt work properly. No idea how I fixed it last time then.

note however, same applies as last time, if you disable DIRECT3D11 in MADVR it fixes it but this is required for HDR, this is why I think this is a problem with MADVR's impletmentation of HDR on AMD cards or the problem is a combination of both AMD and MADVR issues.

feck... arse...