[lrusak]

I can confirm longpress keys are not working. 
this is true for all long presses, using Bluetooth keyboard or a Flirc.

Maybe this is also related to my FLIRC issue with scrolling too quickly through menu entries ?     

I need to get you guys to tell me what key isn't mapped. You have to do this via command line in an ssh session.

you can either use the following command

Code:

libinput list-devices

which will output something like

Code:

Device:           flirc.tv flirc
Kernel:           /dev/input/event16
Group:            6
Seat:             seat0, default
Capabilities:     keyboard pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    disabled
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   n/a
Rotation:         n/a

then please record the events like so

Code:

libinput debug-events --device /dev/input/event16

then press the keys (both regular and long press). the output will look like so:

Code:

-event16  DEVICE_ADDED     flirc.tv flirc                    seat0 default group1  cap:kp scroll-nat
 event16  KEYBOARD_KEY      +2.74s    KEY_UP (103) pressed
 event16  KEYBOARD_KEY      +2.77s    KEY_UP (103) released
 event16  KEYBOARD_KEY      +4.66s    KEY_VOLUMEUP (115) pressed
 event16  KEYBOARD_KEY      +4.69s    KEY_VOLUMEUP (115) released

if libinput command isn't included you can do something similar with evtest which is included in the system-tools add-on.