Return from suspend locks the OS

Package: phosh Version: 0.32.0-1pureos1~byz1

vmlinuz-6.6.0-1-librem5

I do use my L5 as daily driver with enabled suspend to 2 minutes idle time on battery and 2 hours on AC. From “time to time” (say once a day) I face the problem that the L5 does not work correctly after coming back from suspend, mostly when the AC is plugged into the suspended phone, or when it is disconnected from AC and it was in suspend after 2h.

does not work correctly means:

1. the lock screen comes up
2. phone can be unlocked
3. terminal app echoes chars but no command starts and Ctrl-C has no visible effect
4. upper bar can be pulled down, but changing Wifi has no reaction
5. reboot or power from the menu dims the display, but does not shutdown the phone

Only long press on power button and an additional press bring it fully back to life.

I've done in the forum an exact log when and in which situation this has happened: https://forums.puri.sm/t/status-of-suspend-for-librem-5/13918/510 and it turns out that these locks only happen when the phone is in suspend (logically) and I plug something in into it's USB-C port, either the AC or a laptop for tethering. Since I always wake it up before with a short press on power button no locks happen anymore.