[Bug 49649] New: Regression: X11 crash on resolution change

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49649

            Bug ID: 49649
           Summary: Regression: X11 crash on resolution change
           Product: Wine
           Version: 4.6
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: wine-bugs at winehq.org
          Reporter: vv221+winehq at dotslashplay.it
      Distribution: ---

Created attachment 67858
  --> https://bugs.winehq.org/attachment.cgi?id=67858
x-error-of-failed-request.log

Since commit 0cb79db12ac7c48477518dcff269ccc5d6b745e0, resolution change in
some games lead to a X11 crash similar to the one pasted in the attachment
"x-error-of-failed-request.log".

I assigned this bug to WINE 4.6 as this is the first version triggering it, but
it is still there with current master (5.14). A revert of the faulty commit
still applies cleanly on top of WINE 5.14.

The regression test has been done using Age of Empires to trigger the crash, as
it happens reliably when trying to change the game resolution (640x480,
800x600, 1024x768) through the game options.

If the change is done without crashing, using a patched WINE build, the game
will start in the new resolution next time and work fine with it even when
going back to an unpatched WINE build. But trying to change the resolution
again in unpatched WINE, including to go back to the previous resolution in
use, would trigger the crash again.

I think this might be the same bug that got experienced in #47677, I’m going to
run some tests with Age of Empires 2 to get a confirmation.

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