Ygtjki

My CTRL-L, CTRL-R, ALT, ALTGR and numpad keys don't work anymore. The German layout keyboard was fully functional after installation, but the keys got lost after some reboots. I had problems with the touchpad, but that could be temporarily solved by applying

sudo modprobe -r psmouse
sudo modprobe psmouse proto=imps

Later I have removed the libinput packages and installed sz

according: Lifebook E546 touchpad on ubuntu 16.04

The selection of the layout under preferences for keyboard doesn't help. It seems as if a different kind of reduced keyboard is recognized.

This is the section from /proc/bus/input/devices about keyboard:

I: Bus=0011 Vendor=0001 Product=0001 Version=ab54
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input2
U: Uniq=
H: Handlers=sysrq kbd event2 leds 
B: PROP=0
B: EV=120013
B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7

And here is the output of xinput:

$ sudo xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ HOLTEK Optical Mouse id=10 [slave pointer (2)]
⎜ ↳ PS/2 Generic Mouse id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
 ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
 ↳ Fujitsu FUJ02E3 id=6 [slave keyboard (3)]
 ↳ Video Bus id=7 [slave keyboard (3)]
 ↳ Video Bus id=8 [slave keyboard (3)]
 ↳ Power Button id=9 [slave keyboard (3)]
 ↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]

Any idea?