Version: unspecified (using KDE 4.3.5) OS: Linux If I press backspace and pause, KDE freezes completely. Keyboard input does not seem to work anymore, I have tried a lot of combinations. Mouse pointer disappears from the screen, no response to mouse actions. This is quite nasty as the keys are fairly close together on my netbook. Reproducible: Always Steps to Reproduce: Press Backspace and Pause. Actual Results: KDE freeze as described above. Expected Results: I have no idea, but certainly not a freeze.
Could be a global grab or something related to Xorg.
i don't think this is a KDE issue - tried under another session (like openbox or just "failsafe"?) since i cannot reproduce it at all, the combination might trigger an action on the HW layer of your netbook, turning off your touchpad. - open a terminal (konsole, xterm) - ensure i has the kbd focus - press the offending combination - enter "xinput list > x.input.lst" this will write the present input devices known to X11 into the file x.input.lst, which you can attach/post if you cannot type into the terminal anymore, there's more gone than your pointer. -> "sleep 5; xinput list > x.input.lst" this will wait for 5 seconds before dumping the device list and you can press the combination in the meantime
first method : system frozen, no input possible. not even ctrl alt suppr works. Had to shut down system with power button. second method : system frozen as above, konsole command did not output anything though I had waited for twenty seconds. Shut down as above. Booting opensuse in failsafe text-only : Same as above. I guess since it is present in the failsafe runlevel 5 console it is not a KDE bug but an opensuse one?
that's either an X11 or even a kernel bug. instead of powering down you could try to zap (ctrl+alt+backspace) or switch to a VT (ctrl+alt+f1) - in case that's enabled on SuSE but i fear X is entirely locked. if you've another machine you could start an ssh server on the "broken" one and try to ssh into it from the working (if it's only X11 and not the kernel, that will still work) you _might_ be able to "workaround" your problem by removing the pause button (i guess you'll need backspace...) via an xkb rule... (either as entry in /etc/X11/xorg.conf or via setxkb)