[Bug 56866] New: Change of the brightness via "SetGammaRamp" function also changes the brightness globally (under X11)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56866

Bug ID: 56866
           Summary: Change of the brightness via "SetGammaRamp" function
                    also changes the brightness globally (under X11)
           Product: Wine
           Version: 9.11
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: d3d
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Hi all

This bug report is an "offspring" of Mesa bug 11359.
https://gitlab.freedesktop.org/mesa/mesa/-/issues/11359

It was confirmed that an in-game change of the brightness in the game "Indiana
Jones and the Emperor's Tomb" also changes the brightness of the Desktop UI, in
my case KDE Plasma.

So instead of changing only the brightness within the game it is changed
globally. I can confirm this problem for Mesa 24.2 devel and the r600 driver.

An apitrace which reproduces the problem can be downloaded from here:

https://drive.google.com/file/d/1ToA5y43olMc0uKq0C8TXnpJd4nnTmKf2/view?usp=s...

Note, the same behavior is also present with Gallium Nine. As of the end of
June 2024 that brightness change bug cannot be reproduced on radeonsi, crocus
and most likely also the iris driver. On those the function seems entirely
broken so a change to the brightness simply has no effect, not in-game and also
not outside of it.

More information including a deeper technical analysis can be found Mesa bug
11359.