On Thursday, 13 April 2017 00:27:22 CEST Michael Lange wrote: > I would try to install a different kernel (if possible with external > keyboard) and boot into that one, if the problem disappears the culprit is > most likely the kernel.
I managed to boot into the older kernel that I still had in the grub menu (4.9.0-1-amd64). It was difficult because, as I said, the keyboard works badly in GRUB as well, but at least it somehow works, I just have to wait tens of seconds after a keypress. Anyhow, it booted in 4.9.0-1-amd64, but it showed the same issue: keyboard and trackpad don't work. So it doesn't seem to be kernel related. Now I have rebooted again in 4.9.0-2-amd64 version 4.9.18-1 (2017-03-30). Apparenlty the only way I can restore functioning of the integrated keyboard and trackpad is by booting up with an external usb keyboard and an external usb mouse plugged in. I have the usual issues in grub and during bootup, but when I get the login screen, after 30 seconds or so the external usb devices get detected, and also the integrated keyboard and trackpad get detected so everything starts working.
