[Bug 49980] New: Freeze at start when ran on X11 with AllowNVIDIAGPUScreens

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49980

            Bug ID: 49980
           Summary: Freeze at start when ran on X11 with
                    AllowNVIDIAGPUScreens
           Product: Wine
           Version: 5.19
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: luca.boccassi at gmail.com
      Distribution: ---

Created attachment 68381
  --> https://bugs.winehq.org/attachment.cgi?id=68381
winecfg log

When running wine on an optimus laptop set up to use prime - ie: X11 with
AllowNVIDIAGPUScreens enabled and the nvidia modules auto loaded - any
application ran with wine immediately freezes at startup, even winecfg.

You can't even interrupt with ctrl-c, until after half a minute or so when this
message is displayed:

0024:err:environ:run_wineboot boot event wait timed out

And then it's possible to interrupt.

This used to work until a couple of months back.

Last tested on Debian 10 Gnome, with wine-staging 5.19 from wine's repository,
kernel 5.6/5.7/5.8 from backports.

WINE_LOG_LEVEL=debug log attached.

Exact same setup, but running on Wayland without AllowNVIDIAGPUScreens, works
just fine. Even 3D applications via bumblebee work fine.

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