Is the keyboard still working? If so, you can use a console window to reboot. Two ways to get there:

1. ALT-F2, type in "Konsole" followed by the Enter key.
2. Tap CTRL-ALT-F1 twice in quick succession.

The second method completely removes the graphical environment from the equation. (You can return to the graphical environment by using ALT-F7.)

Once you are at a command prompt, you can enter the command
"sudo restart" or "sudo halt".

It sounds like your system suffered a graphics glitch. After rebooting you should be fine. IF you have already rebooted and you are getting this problem still then you have a different issue. In that case I would recommend trying to reset the graphical environment. You can do that by getting to a command prompt (use the second option above, in this case) and then entering the command
"sudo dpkg-reconfigure xserver-xorg", which should do the trick.

If all of that still doesn't work, you should verify it is a system wide problem, or a user specific problem (assuming you have multiple users on the system). If you log in as a different user, does the problem persist? If not, then your specific user settings are suspect. If you rename your settings directory you'll get a pristine environment, but you'll looks your specific preferences/configurations, etc. Log into a command prompt - at your usual login prompt do the CTRL-ALT-F1 thing to get to a prompt without logging into the graphical environment. Login and then enter the following

sudo mv /home/USERNAME/.kde /home/USERNAME/.kde-original

Once you have that done, return to the graphical login (ALT-F7) and login normally. If we are lucky the problem will have gone away. If so, you can then copy over any needed settings from the original directory one at a time. If the problem STILL persists, I would log out and restore the original directory (reverse the order of the directories with the command above) - the problem is somewhere else.

Beyond that, I'm not sure of any specific/other steps you can try. But I hope this solves the problem for you.

Shawn

On 13-01-24 09:31 AM, [email protected] wrote:
I'm running KDE on debian.  Suddenly the mouse pointer changed to a 1/2 a box with a 
"+" in it.  I've never seen this before.  It will no longer change the window 
focus.  I cannot use it to select anything in the kicker.  The mouse buttons no longer do 
anything.  I've tried using ctrl, shift, alt ESC with the mouse and it will not clear.


Does anyone know how to revert the mouse to normal operation?  Does anyone know 
how the function changed or what that 1/2 box and + sign mean?


If it means anything the sides look like a right angle in the upper left hand 
corner.

Also with the lack of functionality I can't even restart X

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