I am also affected by this bug. I am running Linuxmint and Cinnamon just keeps crashing. Most of the times it is the result of clicking a few things and opening / closing guake at the same time.
Installing the proposed packages does not fix the problem though, I am still encountering frequent crashes: (cinnamon:6385): Cogl-WARNING **: 15:11:23.728: Skipping layers 1..n of your pipeline since the first layer is sliced. We don't currently support any multi-texturing with sliced textures but assume layer 0 is the most important to keep [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. cinnamon: ../../src/xcb_io.c:260: poll_for_event: Zusicherung »!xcb_xlib_threads_sequence_lost« nicht erfüllt. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libx11 in Ubuntu. https://bugs.launchpad.net/bugs/1782984 Title: Assertion `!xcb_xlib_threads_sequence_lost' failed with multiple applications To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libx11/+bug/1782984/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp