I am having issues with my keyboard hen using graphical tools like inkscape or gimp. However I every now and then after working with them I cant use my keyboard. I have to press the key several times to type a letter.
I used to get a KDE dialog suggesting using some mode I cant remember which happens after holding the Ctrl key pressed for a while. I wonder if somehow that mode is being activated while working with these tools, and if I can get a way to diable this.

Please see my reply to your other topic on this issue.