Remote-viewer crash over SSH X11 forwarding

Solution Verified - Updated -

Issue

  • Remote-viewer crashes with the following error:
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
remote-viewer: xcb_io.c:263: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
Aborted (core dumped)

Environment

  • Red Hat Enterprise Linux Server 8
  • virt-viewer 8.0.0
  • libxcb 1.13.1
  • qemu 4.1.0
  • spice 0.14.2
  • spice-gtk 0.37

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