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Created attachment 1112405 [details] Output from journalctl -p err -b -1 Description of problem: After unlocking the screen all applications other than Gnome Shell stop responding to input. Selecting and clicking widgets does not work. Typing in applications does not work. Gnome Shell still responds to mouse input, but does not appear to respond to keyboard input. Even if a new application is launched, it does not respond to input. Version-Release number of selected component (if applicable): Name : gnome-session Arch : x86_64 Epoch : 0 Version : 3.18.1.2 Release : 2.fc23 Name : gnome-shell Arch : x86_64 Epoch : 0 Version : 3.18.3 Release : 1.fc23 Name : xorg-x11-server-Xorg Arch : x86_64 Epoch : 0 Version : 1.18.0 Release : 2.fc23 How reproducible: Happens roughly every fifth time the screen is unlocked. Steps to Reproduce: 1. Lock the screen 2. Unlock the screen 3. Try to type in an application, or select something with the mouse pointer Actual results: The application window does not change or respond to input. Expected results: Normal response from application. Additional info: The system is a Lenovo L540 laptop, with a secondary screen attached. See attached log lines regarding gnome-session-binary (the timing matches the input freeze).
Created attachment 1112407 [details] lspci output
Created attachment 1112408 [details] dmidecode output
It looks like the behaviour was triggered by the gnome-pomodoro extension. The same issue has been reported in the gnome-pomodoro issue tracker and the GNOME bugzilla: https://github.com/codito/gnome-pomodoro/issues/190 https://bugzilla.gnome.org/show_bug.cgi?id=754102 I am closing this, since it is known upstream.