It was caused by the problem in mate-panel, as described in bug 1675888. It's fixed in Artful now. The backtrace is different, but the cause is the same, as discussed in the upstream report:
https://github.com/mate-desktop/mate-panel/issues/604 ** Bug watch added: github.com/mate-desktop/mate-panel/issues #604 https://github.com/mate-desktop/mate-panel/issues/604 ** Package changed: mate-applets (Ubuntu) => mate-panel (Ubuntu) ** Changed in: mate-panel (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1670899 Title: /usr/lib/mate-applets/mate-netspeed- applet:5:XPending:gdk_check_xpending:gdk_event_source_prepare:g_main_context_prepare:g_main_context_iterate To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mate-panel/+bug/1670899/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
