[kde] [Bug 509617] New: Add to "Window Rules" HDR property.

Adolfo Rodrigues bugzilla_noreply at kde.org
Wed Sep 17 20:38:33 BST 2025


https://bugs.kde.org/show_bug.cgi?id=509617

            Bug ID: 509617
           Summary: Add to "Window Rules" HDR  property.
    Classification: I don't know
           Product: kde
      Version First unspecified
       Reported In:
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: adolfotregosa at gmail.com
  Target Milestone: ---

SUMMARY:

HDR has been a controversial topic:
https://bugs.kde.org/show_bug.cgi?id=499934

https://discuss.kde.org/t/hdr-calibration-tool-6-4/34592

Since there’s no “solution” to a “not a problem,” I’m requesting a way to turn
HDR on and off for applications, and Window Rules seems to be the most obvious
place to implement this.

HDR ON when the application is running, OFF when it stops. This seems like a
reasonable request, similar to how we have the Adaptive Sync property. While
not perfect by any stretch, I don’t see any other practical solution.

This way, the 100% Brightness Slider can be set to what seems to be the
passthrough value of 203, so it does not affect HDR content in any way, shape,
or form.

While I am genuinely trying to understand the reasoning behind HDR handling as
it currently stands, it does not help users like myself who want HDR content to
be presented on the display unaltered, while also avoiding excessive brightness
in other situations.

Thank you.

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