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geeksheik
Tux's lil' helper
Joined: 07 Sep 2003
Posts: 99
Location: Zürich, Switzerland
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 Posted: Sun May 30, 2010 6:19 pm Post subject: kde keyboard problem: most keys spontaneously stop working.. |
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I'm having a strange keyboard problem on multiple computers. Sometimes kde stops registering keyboard input from most keys. The situation is currently in progress right now; keyboard was working fine all day and then just stopped. I have no idea what triggered it.
I can use the mouse to switch to different KDE windows, but I can not type anything in any window.
I can use Ctrl-Alt-Fn to switch to other virtual terminals.
Numlock and Capslock work.
I can watch the effect of modifier keys being pressed by executing the following line from one of my text-base virtual terminals:
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DISPLAY=:0 xkbwatch
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HOWEVER, absolutely no key will have any effect within any of the KDE windows that I have open. I can't type commands in kde konsole, I can't type text in any document, I can't use ALT-TAB to switch windows, and I can't control my KDE session in any way with the keyboard.
Finally, I just noticed a strange message in one of my text-based virtual terminals:
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XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
after 6803 requests (6803 known processed) with 0 events remaining
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I don't know if this message was generated when the problem started, but it looks suspiciously related.
Here's another suspicious message from /var/log/Xorg.0.log:
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(**) Keyboard0: CustomKeycodes disabled
(II) XINPUT: Adding extended input device "Keyboard0" (type: KEYBOARD)
nvLock: client timed out, taking the lock
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I also don't know if this was generated when the problem started, but I suspect not.
I just started xev from a remote shell and I see the window in KDE. When I move the mouse over the window or click in it, I see mouse events, but no events registered when I type keys while having the window in focus.
From past experience, the system magically recovers after a lot of fiddling around, but I'm not aware of anything that I've done to fix it.
Does anyone have some tips in diagnosing/troubleshooting this highly-annoying issue?
Is there a way to reload the keyboard driver in X?
The keyboard that I'm currently using is PS/2; I don't have a USB keyboard on hand to plug in at the moment.
Thanks in advance! |
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chithanh
Developer
Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany
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| Posted: Sat Jun 05, 2010 5:31 am Post subject: |
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I had such a problem which would from time to time occur when I was still using xorg-server-1.7. I could more or less reliably reproduce it after some minutes of running Spring RTS.
However the keyboard did not entirely stop working, keypresses were registered when holding down a key for more than a second. |
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