[Bug 55511] New: Wine repeatedly prints err:system:update_display_cache Failed to read display config.

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55511

Bug ID: 55511
           Summary: Wine repeatedly prints err:system:update_display_cache
                    Failed to read display config.
           Product: Wine
           Version: 8.15
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: trivial
          Priority: P2
         Component: win32u
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

In sysparams.c the read_display_adapter_settings function uses the global
variable config_key, but does not actually initialize it. This causes the
function to fail, and that failure eventually trickles down to
update_display_cache. I haven't seen any functionality break because of it, but
the messages are annoying and could be trivially fixed by initializing
config_key before it is used.