AutoActions VS win11hdr-srgb-to-gamma2.2-icm

I've just discovered https://github.com/Codectory/AutoActions which detects when a user-defined process starts and can toggle HDR on, then back off again when it exits. I've gone through the list at https://www.pcgamingwiki.com/wiki/List_of_games_that_support_high_dynamic_range_display_(HDR)) to add entries for all the HDR-capable titles that I have installed.

For anyone with any of the myriad of HDR monitors that prefers to leave desktop mode in SDR RGB, I just discovered that the excellent Playnite game launcher has a feature where you can enable HDR on a per-game basis. Simply tick the "Enable HDR support" option under "Advanced" tab for the settings of the games that you want HDR turned on for. I was previously using the now-abandoned AutoActions for this, so glad to see there's an alternative in a tool I already use.

I use https://github.com/Codectory/AutoActions

This is what I've been using, although I don't have an ultrawide monitor. I mainly use it to change it from 1440p to 1080p https://github.com/Codectory/AutoActions

You can use third party programs like https://github.com/Codectory/AutoActions which can automatically enable HDR first when you launch a game and automatically disable HDR when you close the game.

If your gpu supports HDMI 2.1 it will be better for bandwidth. As for HDR, while windows is getting better its still not great for desktop usage IMO. I like to use this tool here: https://github.com/Codectory/AutoActions/releases/tag/1.9.19.

There's an app called AutoActions which will allow you to automatically enable HDR on a per app basis which works really well for me. Unfortunately the author is no longer maintaining it, so hopefully nothing breaks!

Autoactions

Fourth, go here: https://github.com/dylanraga/win11hdr-srgb-to-gamma2.2-icm and download the ICM that most closely matches the SDR brightness you set, and activate it whenever you're using Auto HDR (switch back to your calibrated profile when a game has its own HDR mode).

https://github.com/dylanraga/win11hdr-srgb-to-gamma2.2-icm This might help you? I don’t quite remember but I think it helped me with your issue

Also, you may appreciate this as it should allow for better color accuracy when using the hdr mode if it isn't solely down to what settings your display exposes when in sdr vs hdr. https://github.com/dylanraga/win11hdr-srgb-to-gamma2.2-icm sdr content looks much better ever since I set this up.

You're also probably on Windows using Auto-HDR, which messes up the gamma-to-EOTF curve mapping. There's a patch for that.

Try using the following color Profile matching the nits of your panel: https://github.com/dylanraga/win11hdr-srgb-to-gamma2.2-icm

I can't confirm / haven't tested myself but this post has been mentioned to a few times around here with a good explanation: https://github.com/dylanraga/win11hdr-srgb-to-gamma2.2-icm/

and you should make sure you followed the guide to calibrate HGIG correct and also follow this if you want true blacks in literally anything.