<div dir="ltr">Hi,<div><br></div><div>Could you please post a backtrace, breaking on xwl_log_handler() ?</div><div><br></div><div>Another interesting data to capture would be the WAYLAND_DEBUG logs (between Xwayland and gnome-shell)</div><div><br></div><div>wl_registry_bind() occurs when actually binding to an interface, which in the case of wl_output occurs when adding a new output, not removing it.</div><div><br></div><div>Cheers,</div><div>Olivier</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 26 October 2017 at 15:40, Michael Thayer <span dir="ltr"><<a href="mailto:michael.thayer@oracle.com" target="_blank">michael.thayer@oracle.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
Reporting this here in case it is of interest. I have been debugging<br>
regular desktop crashes on my new Ubuntu 17.10 systems. One of them<br>
seems to happen when Xwayland FatalError-s out because a Wayland output<br>
disappears. I have only investigated this so far, but hopefully this<br>
will be helpful to someone who knows it better: the error is<br>
"wl_registry@2: error 0: invalid global wl_output (28)", which seems to<br>
be posted by wl_registry_bind in wayland-server.c, and get picked up in<br>
xwl_log_handler in Xwayland. Xwayland exiting in turn causes GNOME<br>
Shell to panic.<br>
<br>
Regards<br>
Michael<br>
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