[Bug 42973] Retina Mode gets automatically disabled if the screen resolution changes

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=42973

--- Comment #2 from Ken Thomases <ken at codeweavers.com> ---
Hmm.  Yeah.

The original thought was around Wine programs (e.g. games) themselves changing
the resolution.  In that case, the new resolution is just treated "normally"
(Retina mode off) because it's assumed that the game wants exactly what it
requested.  That is, if a game switches to 1280x720, it wants 1280x720 pixels,
not 2560x1440 pixels which is what Retina mode would translate it to.

Basically, Retina mode is keyed off of the original resolution as it was at
program launch, and only that resolution.

Obviously, that doesn't work so well for external resolution changes. 
Unfortunately, it's hard to distinguish between an resolution change that's
completely external to Wine vs. one which one Wine program is seeing because
another Wine program changed the resolution.

As you probably figured, the workaround in the meantime is to restart the Wine
programs after the resolution change.

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