AMD, Intel and Nvidia driver issues and last recommended version

[DMU]

Originally Posted by oldpainlesskodi

Still undersatuarted.

This is because you are using older driver. With the new 19.12.2 and all OS updates, there are no more BT.2020 issue in the OS HDR mode.

[mclingo]

i had no OS hdr issues with any driver versions, only ati api

[DMU]

Originally Posted by mclingo

i had no OS hdr issues with any driver versions, only ati api

This issue is not permanent. This is a phantom issue. In my screenshot there is an issue and not with the same driver and the same OS.

[mclingo]

ok, I dont normally use OS HDR anyway so lets put that to one side for now, this is getting confusing. Are you stating that AMD HDR API is currently working fine for you with certain driver versions?

[DMU]

No. I have never claimed this.

[mclingo]

can you clarify exactly what you are claiming then, your last two statments made little sense within the context if this conversation, either you have a problem or you dont, if you do have a problem, either you can defeat it by changing to a different driver or you cant?

[oldpainlesskodi]

I forgot to update my sig, I am on the latest driver (sig updated), in short, what I get is this:

Samsung TV - OS HDR -colour space auto - correct colour space, as in it puts the set into BT2020 mode.
Samsung TV - OS HDR - colour space native - incorrect - undersatuated.
Samsung TV - ATI HDR - colour space auto - unsaturated
Samsung TV - ATI HDR - colour native - better than auto, as the dispplay is trying to map the incoming signal to the displays native colour space.

Hope thats clear.

[DMU]

@mclingo
With the latest driver version, I can solve the problem of unsaturated colors using the OS HDR only.

@oldpainlesskodi
It is strange that you have a different results with NATIVE and AUTO, since these modes are identical for TV.

[oldpainlesskodi]

That may be true, but do, so who knows. What I do know is that the AMD API is delivering a very different image compared to the OS HDR toggle.

[mclingo]

yeah that all makes sense now, I was concerned there was a general issue with HDR but its clearly just AMD API isnt it.

Still complete silence from QBHD who claims to be having "no issues" - this is very odd.

[oldpainlesskodi]

If I am not mistaken, looks like reports are starting to surface on the AVS forum on the BT2020 issue with the AMD API.

[mclingo]

great, hoping MADSHI will finally pick this up and maybe put a workaround in maybe.

[oldpainlesskodi]

Its not an ideal solution, but even a Madr option for Madvr to trigger the OS HDR toggle on and off would be a workaround.

[mclingo]

you know what, i think that would be a good idea regardless off this issue as NVIDIA and AMD have broken their HDR switch on a number of occasions.

at least we're getting some traction on it now though, if MADSHI pics up on it he might have a contact at AMD like he does with NVIDIA.

[chros]

Originally Posted by oldpainlesskodi

even a Madr option for Madvr to trigger the OS HDR toggle on and off would be a workaround.

Can't you toggle the OS HDR option via command line somehow? (I don't have it on the ancient 1607.) In that case you can do it with madvr, until it will be added.

[oldpainlesskodi]

I have no idea - will do a bit of digging

[mclingo]

this was posted a while back, its little app that toggles windows hdr on and off, very handy for this, you could addcit into a MADVR profile or just use it from a batch as part of your media player load etc.

https://1drv.ms/u/s!AgvFafeelEBij8B8...ANvQg?e=eOOt7q

I was going to use this but I found I preferred the MADVR HDR to SDR conversion better than windows HDR, bu then my card started hanging my system so I took it out for now.

[mclingo]

and if you prefer vbs scripts:

https://1drv.ms/u/s!AgvFafeelEBij8B9...2sJ-A?e=hYRqWR

[oldpainlesskodi]

Yeah, thanks for posting this, I've come across this, but I just cant get it to work reliable - keeps messing up.

EDIT - yeah, seen the scripts, and on win 10 1904.1 they jump straight to resize, rather than toggle HDR, if that makes sense.

But thanks again for posting/helping.

[mclingo]

yeah I had the same issue with the scripts but the toggle worked well for me, I setup a shortcut in autohotkey, you can trigger it while watching a movie in KODI DS but you need to then restart the movie.

The filter is a better option if you are using something like MPC-HC as you main driver as again you can toggle this using a hotkey, and you dont have to restart the movie, however I just couldnt get it to work with KODI DS, too complicated for me to setup.


https://1drv.ms/u/s!AgvFafeelEBij8B-...bdyQQ?e=Nib73V