Same issue and bug related on gitlab.xfce.org: https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/222
My laptop with Xfce 4.16 on Xubuntu 21.04. I've rebuild xfce4-settings without the support to upower-glib and now the bug disappear. On xfce4-settings 4.15.3 the upower-glib is disabled by default: https://gitlab.xfce.org/xfce/xfce4-settings/-/tags/xfce4-settings-4.15.3 ** Bug watch added: gitlab.xfce.org/xfce/xfce4-settings/-/issues #222 https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/222 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1431149 Title: XFCE 4.12 Black screen after wakeup from suspending by closing the laptop lid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-settings/+bug/1431149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs