[Bug 37849] Wine causing color temperature setting(redshift) not working for a short time

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=37849

--- Comment #9 from Henri Verbeet <hverbeet at gmail.com> ---
(In reply to YAOMTC from comment #7)
> change back. Also, when I go into settings in WoW, sometimes the color will
> change, then change back - and any change I make to the gamma checkbox in
> WoW gets reverted after a very short time.

That part at least is expected, redshift updates the color temperature of the
screen every 5 seconds or so, and any custom gamma setting by an application
will get overidden at that point. Because of that, it's also not unexpected for
an application that explicitly sets the screen gamma to briefly change the
colors and then change back when redshift updates again. In the case of
StarCraft 2 though, the application never does that and the issue (likely)
happens because of wined3d trying to restore the incorrect gamma ramp it read
earlier.

For what it's worth, I think you should be able to prevent Wine from touching
screen gamma at all by setting "UseXVidMode" = "N" (see also
http://wiki.winehq.org/UsefulRegistryKeys), although I haven't tested this.

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