Reinstalled current libmutter. With dual monitor horizontal aside this problem could not be reproduced because logon-session crashes before showing logon-screen, (caused by bug #1790525).
Installed proposed version: apt list libmutter-3-0 Listing... Done libmutter-3-0/cosmic-proposed,now 3.30.2-1~ubuntu18.10.3 i386 [installed] No crash anymore when trying to suspend at logon-screen. Problem is solved by proposed package. No new other problems detected. ** Tags removed: verification-needed-cosmic ** Tags added: verification-done-cosmic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795774 Title: gnome-shell crashed with SIGSEGV in cogl_texture_get_height(texture=0x0) from clutter_offscreen_effect_real_paint_target() from clutter_offscreen_effect_paint_texture() from clutter_offscreen_effect_paint() from clutter_actor_continue_paint() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1795774/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs