HDR settings uniformity is much needed

Windows has a relatively new feature called auto color management (acm) that should correctly display SDR content on an HDR display. Otherwise your SDR content will be oversaturated because it’ll be expanded to your displays wide gamut.

I have a wide gamut display and I made a thread on this forum about how I use novideo_srgb to clamp the gamut and also calibrate full screen games.
 
trinibwoy said:
Great investigative work by Tim at Monitors Unboxed on QD-OLED panel dimming in HDR. He even taught the guys at TFTCentral a thing or two!


Loading…

tftcentral.co.uk
Click to expand...

Geez, a monitor that changed brightness when scrolling a window of text would drive me insane.

OLED has always been on my wishlist, but not if they behave like this.
 
trinibwoy said:
Yeah that’s what I read so I’m really confused as to what’s happening.
Click to expand...

Windows always displayed things incorrectly on wide gamut displays unless an application was colour management. Acm is supposed to fix that but you need to check if it’s working or enabled because I don’t know if it works with all monitors.
 
Scott_Arm said:
Windows always displayed things incorrectly on wide gamut displays unless an application was colour management. Acm is supposed to fix that but you need to check if it’s working or enabled because I don’t know if it works with all monitors.
Click to expand...
tried that utility you mentioned last week -I used the Unlimited profile-. It seemed to work fine, no more washed out colours nor instant odd changes when using SDR content from bright to darker and duller, etc, but after using it my monitor's behaviour changed, the max framerate it supported went from 165Hz to 120Hz, and oddly new possible framerates were added, like 75Hz and stuff like that. I reinstalled the GPU drivers performing a clean installation but to no avail, I had to reset the monitor's firmware to default values using CRU.
 
@Cyan novideo_srgb or acm? novideo_srgb should only work with Nvidia GPUs. There’s a different way to clamp colours in the AMD drivers. Don’t know about Intel.
 
Scott_Arm said:
@Cyan novideo_srgb or acm? novideo_srgb should only work with Nvidia GPUs. There’s a different way to clamp colours in the AMD drivers. Don’t know about Intel.
Click to expand...
tried this one.

github.com

GitHub - dylanraga/win11hdr-srgb-to-gamma2.2-icm: Transform Windows 11's virtual SDR-in-HDR curve from piecewise sRGB to Gamma 2.2

Transform Windows 11's virtual SDR-in-HDR curve from piecewise sRGB to Gamma 2.2 - GitHub - dylanraga/win11hdr-srgb-to-gamma2.2-icm: Transform Windows 11's virtual SDR-in-HDR curve from pi...
github.com github.com
 
Cyan said:
tried this one.

github.com

GitHub - dylanraga/win11hdr-srgb-to-gamma2.2-icm: Transform Windows 11's virtual SDR-in-HDR curve from piecewise sRGB to Gamma 2.2

Transform Windows 11's virtual SDR-in-HDR curve from piecewise sRGB to Gamma 2.2 - GitHub - dylanraga/win11hdr-srgb-to-gamma2.2-icm: Transform Windows 11's virtual SDR-in-HDR curve from pi...
github.com github.com
Click to expand...

Oh right. That’s another issue with windows hdr. That’s to fix a gamma issue with how windows handles hdr. Windows is a total mess.
 
trinibwoy said:
HDR looks so good when it works though. I didn’t realize how flat SDR looks in comparison. I’m really questioning the need for super bright displays though. Even at 500 nits I find myself squinting at highlights. Can’t imagine why we need 1000 or god forbid 10000 nit monitors.
Click to expand...
It's more about degree of coverage for brightness and color space. You can have a monitor with "HDR1000" that won't look as good or sustain brightness with more surface area than a VESA Display HDR400 monitor. As with many different bullet points on boxes throughout the decades, the maximum nits isn't everything.
 
RobertR1 said:
Best OS level hdr experience by far is apple iPad Pro 2, iPhone and mbp. No user intervention required.
Click to expand...
*Sigh* If only Apple gave a shit about non-Apple external displays...dunno whether it's improved recently (I'd hope so), but in the past, HDR on a MBP (or more specifically, mixed SDR/HDR content) was only a great experience with the internal display or Apple displays. Some people in AV production I talked to just resigned to run through a Decklink or similar for HDR grading work etc. and forget actually using them directly for mixed work.
RobertR1 said:
Windows is a disaster as always. I don’t envy anyone not into the AV hobby trying to navigate HDR on the PC. Compounded by game devs just making up hdr sliders and terminology on the fly. Good luck everyone.
Click to expand...
It's a mess alright, like e.g. why can't W11 offer the piecewise sRGB/2.2 power EOTF as a toggle, like Apple does (at least for their displays)?

But as so often, it's not that simple, and not *just* a Windows issue...
Here's a discussion on the Steam forums I found quite informative (I know, right? Who would have thought. :D ) between an AV guy and one of the the devs of Talos Principle 2 about the topic (SpecialK's Kalaiden also chips in):

steamcommunity.com

HDR Broken? :: The Talos Principle 2 General Discussions

In the demo when I activate HDR the colors just get washed out and the game doesnt properly display in HDR. I'm on win11 with an HDR monitor, I play other games in HDR just fine. Is there something I might be doing wrong?
steamcommunity.com steamcommunity.com

Incidentally, Talos Principle 2 is the only game I know that offers that sRGB/2.2 toggle in-game!
 
If HDR in windows was seamless, I'd probably have bought an HDR monitor already. As it is, I'm happy with well calibrated SDR. I guess it gives me time to wait for tandem rgb oled to hit the monitor space, or whatever the next thing is.
 
Scott_Arm said:
If HDR in windows was seamless, I'd probably have bought an HDR monitor already. As it is, I'm happy with well calibrated SDR. I guess it gives me time to wait for tandem rgb oled to hit the monitor space, or whatever the next thing is.
Click to expand...
I enjoy many SDR games with RTX Digital Vibrance, it provides vivid color without having to resort to all the hassles of Reshade.
 
DavidGraham said:
I enjoy many SDR games with RTX Digital Vibrance, it provides vivid color without having to resort to all the hassles of Reshade.
Click to expand...

I prefer the calibrated standards look. Even that I wish was handled better in windows. Have to rely on a third party tool (novideo_srgb) to get it done so that it works in games.
 
Malo said:
It's more about degree of coverage for brightness and color space. You can have a monitor with "HDR1000" that won't look as good or sustain brightness with more surface area than a VESA Display HDR400 monitor. As with many different bullet points on boxes throughout the decades, the maximum nits isn't everything.
Click to expand...

Yeah I’m not referring to the bogus HDR displays. HDR mastering is supposedly done for dark environments but I can’t imagine looking at a 1000 nit monitor in a dark room. I’m currently running VESA Display HDR 400 in a dark room and highlights are already blinding.
 
trinibwoy said:
Yeah I’m not referring to the bogus HDR displays. HDR mastering is supposedly done for dark environments but I can’t imagine looking at a 1000 nit monitor in a dark room. I’m currently running VESA Display HDR 400 in a dark room and highlights are already blinding.
Click to expand...

I kind of wonder how viewing distance plays into it with monitors.
 
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