SUMMARY An issue we have been having in Plasma Mobile for as long as I can remember, is that the touchscreen sometimes stops being able to interact with anything after waking from suspend. We have confirmed that libinput indeed is still receiving these touch events in these cases, however it seems something in between doesn't pass the events along. We have an issue with more details here: https://invent.kde.org/teams/plasma-mobile/issues/-/issues/102 STEPS TO REPRODUCE This only happens ~10% of the time, and I haven't found a reliable way to reproduce it, so it is hard to trace down: 1. Suspend the phone 2. Wake the phone 3. Attempt to interact with the touchscreen 4. Attach keyboard and mouse, and unlock 5. Attempt to interact with the touchscreen while logged in OBSERVED RESULT Apps and the shell don't seem to receiving any input events EXPECTED RESULT Apps and shell receive input events SOFTWARE/OS VERSIONS Linux/KDE Plasma: Plasma Mobile on postmarketOS and Manjaro KDE Plasma Version: 5.26 KDE Frameworks Version: 5.98 Qt Version: 5.15.6
I've also noticed that if the screen dims due to inactivity, touching the screen seems to work to make it undim. So something is wrong in actually passing the events to the UI.
I just found this bug report in a search; afaict from the linked issue it can be closed