Xwayland fatal error when Wayland output disappears

Michael Thayer michael.thayer at oracle.com
Thu Oct 26 13:40:13 UTC 2017


Hello,

Reporting this here in case it is of interest.  I have been debugging
regular desktop crashes on my new Ubuntu 17.10 systems.  One of them
seems to happen when Xwayland FatalError-s out because a Wayland output
disappears.  I have only investigated this so far, but hopefully this
will be helpful to someone who knows it better: the error is
"wl_registry at 2: error 0: invalid global wl_output (28)", which seems to
be posted by wl_registry_bind in wayland-server.c, and get picked up in
xwl_log_handler in Xwayland.  Xwayland exiting in turn causes GNOME
Shell to panic.

Regards
Michael
-- 
Michael Thayer | VirtualBox engineer
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