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#1 2025-10-07 13:50:51

skf034kfsl
Member
Registered: 2025-10-07
Posts: 1

Display color management in KDE, not understanding it

I just don't get it. No matter what I do, everything on the external display appears to be output in sRGB space. There are settings there that visually seem to apply some sort of transformation on top of that sRGB. But I just cannot get it to physically output the entire AdobeRGB space to the monitor that fully supports it. I was using this page https://webkit.org/blog-files/color-gamut/ to download sample images, and specifically that red-on-red image stands out as the easiest to work on. The monitor itself is definitely fine as color management works properly on macOS, and that red image test works great. It is also specced to cover 99% of AdobeRGB space. I have no idea where to start debugging this issue, and for example running colormgr get-devices doesn't even show a display. Any tips on where to start? I tried opening that image in Firefox with color management options enabled, in Gwenview and Darktable, all display exactly the same result visually, and that is all-red square with no letter W or logo in it, as it should be.

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#2 2025-10-17 17:29:48

unixman
Member
Registered: 2015-03-12
Posts: 128

Re: Display color management in KDE, not understanding it

Firefox,Gwenview and Darktable are unrelated here as submit to monitor not them job but compositor!
you inspect your compositor support for AdobeRGB. if you has it then figure out how to enable it.(read docs, config, grep "AdobeRGB" into git repo.)
mesa and or kernel drivers maybe related here too. (eg need some switch or no support other than sRGB)

Last edited by unixman (2025-10-17 17:33:27)

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