[Xfce-bugs] [Bug 16303] New: Adding a gamma option to the display-settings

[bugzilla-daemon at xfce.org]

https://bugzilla.xfce.org/show_bug.cgi?id=16303

            Bug ID: 16303
           Summary: Adding a gamma option to the display-settings
    Classification: Xfce Core
           Product: Xfce4-settings
           Version: 4.14.1
          Hardware: PC (x86)
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: Medium
         Component: Display Settings
          Assignee: xfce-bugs at xfce.org
          Reporter: to.213692 at protonmail.ch
  Target Milestone: Xfce 4.14

Changes from a few years ago that let users change their gamma settings for
screens were apparently never merged, because "colord is the way to go."
(https://bugzilla.xfce.org/show_bug.cgi?id=10069). However, I don't think so.

- To create diplay profiles a colorimeter is required
- People (for example me) want to make two monitors have somewhat similar
colors by changing the gamma per channel and per monitor.
- Xorg.conf gamma settings are not respected by xfce, xfconf and display.xml
doesn't provide means to change the gamma apparently. Settings applied using
xrandr --gamma are discarded when games launch.

I made a somewhat longer description on this here:
https://hip70890b.de/linux/xfce_gamma/#Pls

Thanks! :)
Kind Regards,
Tobi

(It was said at https://xfce.org/community that this is also a place for ideas,
so I hope this is fine. https://bugzilla.xfce.org/page.cgi?id=bug-writing.html
doesn't mention guidelines for writing reports like this though. And I didn't
quite know if answering to a years old thread is bad practice just like in
regular forums so I created this new report.)

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