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xiota
Asked: 2020-03-16 13:11:39 +0800 CST

How to color manage sddm login screen?

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I'm using Kubuntu with sddm login screen. Currently, the monitor icc profile loads after login. I've tried "Install System Wide" in the colord system setting, but that appears to only make the profile available for use by other users. How can I apply the icc profile to the login screen?

color-management sddm

1 Answers

  1. Best Answer

    If you're still using X11, as I am, you can try the following:

    1. Copy the icc file to a path without any spaces.

    2. Decide on a terminal command that will load the icc file. There are several options. This is the one I chose:

      /usr/bin/dispwin /var/lib/colord/icc/startup.icc

    3. Add the command to load the icc profile to /usr/share/sddm/scripts/Xsetup. This file may be overwritten when the system is updated.

      or ... create your own startup script, and add the following to /etc/sddm.conf.

      [X11]
DisplayCommand="/path/to/startup_script"

    References

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