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Super + D stopped working properly on Ubuntu 18.04.5 LTS

jp flag

I used to use super+d to toggle between hide/show on all windows. Now, when i press this combination (super+d), the activities overview is displayed, but with type to search bar already filled with a 'd' character instead of the toggling behavior, which causes the need of clean the input before trying to press the combination again. when i press this combination within a open folder, the search bar on the top of a folder is displayed, already filled with a 'd' character too. I tried to reset the shortcuts but i'm still getting this odd behavior. i'm using Ubuntu 18.04.5 LTS and the behavior stated to occurs suddenly. 3 things can happens when i press super+d:

  1. the expected toggling behavior
  2. open a filled search bar
  3. nothing

how can i know if it is and hardware or software issue? anny help would be appreciated.

some pics:

pic1 pic2: pic3

David avatar
cn flag
In some places in the question you say D, in others d. Ubuntu is case sensitive.
vanadium avatar
cn flag
Are you using the Unity desktop or the default Gnome desktop? You tagged with both "unity" and "gnome". I would suggest to check your installed extensions first. Disable them all and see whether (after logging out back in) the issue still exists.
victor israe avatar
jp flag
it's Gnome. i don't have enabled extensions at all. using gnome-tweak i got ubuntu appindicators and ubuntu dock as extensions. both disabled.
victor israe avatar
jp flag
it's seems a hardware issue on my keyboard, as i bought a new keyboard and everything started to work again. I wonder if there is a cleaver way to make this kind of diagnostic. What i did was: used xev to realize the problematics keys didn't give any output at all and I used a liveCD to see if the behavior occurs on a diferent OS too.
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