I just updated from Ubuntu 16.04 Unity to Ubuntu 18.04 with GNOME. The update went well except for one thing: some times IntelliJ Ultimate keyboard shortcuts simply stop working. They work for some time and then they stop. I have only 2 GNOME extensions enabled: Ubuntu Dock and User Themes.
What can be the cause? How can I troubleshoot this?
If I restart IntelliJ they start working again, but eventually stop working.
All the keyboard shortcuts are affected:
- Ctrl+Shift+A (to open settings in IntelliJ)
- Shift+Alt+Left/Right to move back and forward in the code.
- All shortcut keys.
- Arrow keys don't even work to move up and down in the code.