I have calibrated my monitors to create icc profiles, they show up in KDE color management and everything used to work exactly as it should. Now every time I start my computer it goes like this:

  1. I log in to my account
  2. It shows my desktop, with the right colour correction.
  3. After a few seconds the colours revert to look un-calibrated on both monitors.
  4. I restart the colord service and it loads the colour correction again.

As an alternative to step 4, if I go to KDE colour settings, select the default profile and then back to my profile then it also starts looking good again.

This problem must’ve started a week or two ago, but unfortunately I haven’t been able to pinpoint exactly when. I haven’t touched anything related to colour management in months, and don’t think I’ve done any changes to my system other than upgrading packages.

Can’t see anything colour related in the syslog except colord loading the correct profiles. I removed all the old profiles that I wasn’t using anyway. I removed dispcal’s profile loader from autostart to make sure it wasn’t interfering with something. The profiles are both installed system wide and in my user folder.

Using Fedora 39 KDE.

Anyone have any idea what could be wrong, or even how to debug this?

  • peanutbutter_gas@lemm.ee
    3·
    9 months ago

    I’m away from my computer right now, so Im not 100% sure, but I think you can set display profiles. You should be able to set a display profile that will auto load on login and should set your display options that you want. Maybe this can work despite the colord issues?

    I’ll verify if kde display profiles are a thing and if they can help your use case tomorrow.

    • ffhein@lemmy.worldOP
      1·
      9 months ago

      I meant I use the KDE colour management settings to set the calibrated icc profiles for each display. I guess it uses colord under the hood, since restarting the service reloads the profiles. Or did you mean some other kind of display profile?

      • peanutbutter_gas@lemm.ee
        1·
        9 months ago

        Sorry. I think it was gnome I was thinking about. The display configuration for gnome allows for specifying layout and advanced profiles when it detects certain monitors are plugged in. Things like dpi, font size, etc. I have a computer hooked up to my TV that runs gnome and another that upstairs running kde

  • Zamundaaa@discuss.tchncs.deEnglish
    3·
    9 months ago

    Is that on Xorg, or on Wayland? On Xorg, a bunch of different processes can try to take control over the gamma_lut of a screen (like night light in KWin vs the gamma settings page vs some games like CS2 vs colord), so if you’re on Xorg I’d be surprised if you didn’t have issues with it sooner…

    • ffhein@lemmy.worldOP
      1·
      9 months ago

      Xorg, but it has worked without issues on Fedora for over a year, and it also worked on Xubuntu before that :/

      I know nvidia-settings messes up the colors if I open its GUI, but I haven’t found any other program which does so. I do use nvidia-settings from a script when power limiting + overclocking my GPU, but I have verified that it doesn’t mess with the colours, and I’ve also had it for almost a year so it’s not new.