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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?

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