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i'm using a laptop and my shift keys aren't working, on the same laptop I also have Windows and when I use it both shifts work normally, so it's not a mechanical problem.

can you please help me diagnose and fix this issue 'question mark'

here's the result of xev just holding up the shift key

KeyPress event, serial 37, synthetic NO, window 0x1e00001,
root 0x224, subw 0x0, time 11213734, (61,-16), root62,49),
state 0x0, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x1e00001,
root 0x224, subw 0x0, time 11213750, (61,-16), root62,49),
state 0x1, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False

i think that the system is interpreting 'at random' that when i press shift and the system identifies it, it comprehend as it was being pressed and released instead just pressed. please need some help fixing this issue, it's impossible to use the keyboard properly with this issue

thanks

guiverc
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Diego Costa
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  • assuming it's a desktop system, I'd start using xev – guiverc Nov 25 '20 at 08:08
  • Please don't add additional detail via comment, if you want people to read it & reply it's best to edit your question and add it there (without the \n or line-breaks, it's not easy to read & you're best interpreting it yourself or comparing it to another device where keyboard works; a live system is fine). You can edit your own questions. – guiverc Nov 25 '20 at 10:30
  • done as requested, since im new to ubuntu i'll like to ask for help on discovering the issue, i wouldn't know how to diagnose it. – Diego Costa Nov 25 '20 at 10:40
  • face exactly same issues with ubuntu 20 – Tejaskumar Tank Dec 23 '21 at 14:24

2 Answers2

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You can easily fix this by re-installing the input X Server’s driver again. But since the keyboard is not working in the first place, this gets a bit tricky. So, here is how you fix the keyboard not working:

Go to settings > Universal Access > Screen Keyboard (enable)

Search for the 'terminal' and type in:

sudo apt-get install xserver-xorg-input-all

Type in your password and hit enter.

Once we have the X Server keyboard input drivers installed, reboot your System. When the system is back up and running, you should be able to use your keyboard (and mouse).

Gitau Harrison
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Thanks for the help, it was a kernel issue, apparently there are some kernel versions known to create some issues with the keyboard.

Really thanks

Diego Costa
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