[Bug 51362] New: user32:sysparams times out on the cw-* Windows 10 1507 machines

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51362

Bug ID: 51362
           Summary: user32:sysparams times out on the cw-* Windows 10 1507
                    machines
           Product: Wine
           Version: 6.10
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: [e-mail]
          Reporter: [e-mail]

user32:sysparams times out on the cw-* Windows 10 1507 machines:

https://test.winehq.org/data/patterns.html#user32:sysparams

sysparams.c:1123: testing SPI_{GET,SET}ICONTITLEWRAP
user32:sysparams:04d8 done (258) in 120s

It used to time out on most cw-rx460 configurations because the 19.* Radeon
driver created a window that did not process the messages broadcasted by the
first SystemParametersInfo(... SPIF_SENDCHANGE) call.
However this was resolved by:
* Upgrading to the 21.* Radeon driver which does not have this issue.
* Reinstalling the 19.11.3 driver without its configuration GUI.

Despite that it still systematically times out on cw-rx460-1507 so there must
be some other window causing trouble.

user32:sysparams also times out on cw-gtx560-1507 but not systematically. The
reason for this timeout is unknown but it is likely caused by some rogue window
too.

user32:sysparams never times out on the QEmu VMs, including w1064v1507 so it
seems likely that the issue is related to some aspect specific to the cw-*
machines.