Keyboard not detected in KDE

[Maya Angelou]

Hello,
Sometime under KDE my keyboard is not detected and this is the problem I have with my computer. I'm disconnect and reconnect: no key does not respond! (Even Caps Lock / Num). I can not switch (by [Ctrl] + [Alt] + [F1]) on a console, the only thing I can do is boot with the mouse a new session (with the same user without leaving the previous one) and then it works fine. But if I pass on the previous session, the problem resurfaces. If you have any other way round then please let me know. Thanks in advance.

[NetWorkInG]

Hello,
learn the keyboard shortcuts if not look in console

cat / dev / input-mice

If there is a reaction (I think it is very advisable to disconnect the hot ps2). Have you checked in the dev directory your operating system. See, if you can find some help there.

[WinDoWLoCuS]

Hello,
Is the problem reproducible on another account? Or another manager X? History to see whether this is due to user config, the interface or the X server. There exists no way to interact on a session from another coincidence? (Trying to save themselves at least can be) Just try this and if you have any error then please let me know. Thanks in advance

[SoftWore]

Hello,
Is your mouse working? it's more annoying ... still

apt-get install matchbox-keyboard (virtual keyboard xvkbd)

a virtual keyboard waiting for a USB keyboard?

ctrl + alt + F1 (F2) no more?

the trick works for the keyboard as / dev / input / event (1,2,3). A desktop shortcut to blow up the console to test Xorg. I hope this information will help you.

[Maya Angelou]

Hello,
Good question: it's very random as a phenomenon, it happens only "occasionally". For cons, the moment I write these lines, the problem is still on my session 0, while Session 1 runs correctly (the manager and the user is the same in both sessions)

can be inferred that (unless I am mistaken)
- This is not a prior account
- that the manager did not seem to be the cause

[Miles Runner]

Hello,
It is even worse than that because I can not use your keyboard (=> I did not know your matchbox-keyboard: it is great that!) Because my session 0 has keyed in a few minutes. The only device available for me to log is the mouse.

[SoftWore]

Hello,
By the manip of " cat / dev/input/event0 "and fiddling with the keyboard to see what it gave, I had to do a combination of keys (other than [ALT] + E) m ' restarted X. The "consolation" is that I have on my keyboard again session 0" But the concern will reappear sooner or later, that's for sure: I leave So this post, and would open out of the shadows when X loses again north, no I meant the keyboard. However, a big thank you to everyone for your help.