I do not have access to upstream and also have no idea what to add there. I have the impression the root cause of the plymouth crash is a configuration problem. I compared Ubuntu 18.04, upgraded from 16.04, with the fresh install of 18.10.
At 18.10 file /usr/share/initramfs-tools/conf-hooks.d/cryptsetup is missing, which contains at 18.04 : # and for systems using plymouth instead, use the new option FRAMEBUFFER=y File /usr/share/initramfs-tools/hooks/framebuffer only loads kernel-module i915 and firmware for Intel-graphics-card into initramfs if FRAMEBUFFER=y. THerefore at 18.10 i915 is not loaded into initramfs. At 18.04 with i915 loaded, drm is initialized within 3 seconds kernel elapsed time, so before plymouth needs it. At 18.10 drm takes 20 seconds, so after plymouth needs it. By default plymouth waits max. 5 sec. for drm and then will use device fb0 with vesa. Later at initialization of drm this device fb0 with vesa will give a remove event. Plymouth does not handle this situation properly, because it refers memory of a renderer, which is already freed. I see no reason why this module i915 no longer is loaded at initramfs. Startup time is almost the same. The splash-screen can be shown earlier if present in initramfs. I think it simply is a bug in ubuntu or upstream. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1794292 Title: plymouthd crashed with SIGSEGV in /sbin/plymouthd:11 in ply_renderer_set_handler_for_input_source -> ply_keyboard_stop_watching_for_renderer_input -> ply_keyboard_stop_watching_for_input -> ply_device_manager_deactivate_keyboards -> on_deactivate To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1794292/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
