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I wanted to install the mtgap keyboard layout, so I go to the its github page
https://github.com/kenranunderscore/mtgap-layout
and do the following: 

sudo cp xkb/mtgap_30 /usr/share/X11/xkb/symbols/


nano /usr/share/X11/xkb/rules/evdev.xml


(then add some content from the mtgap's documentation)
After that, I restart the computuer. And the mtgap layout is showing on the options of keyboard kayout to choose from. Everything work as expected.

But I want to change some key bindings in the layout (I want to change the binding from Caps lock -> Backspace into Caps lock -> Escape)
So I edit /usr/share/X11/xkb/symbols/mtgap_30 (replace "_bksp" -> "_esc", "BackSpace" -> "Escape")
I also edit the /usr/share/X11/xkb/rules/evdev.xml (replace "_bksp" -> "_esc")
After that, I restart computer, then I cannot login anymore

What I did to try to fix that:

  • Boot into a ubuntu live usb and edit the mtgap_30 and evdev.xml file
  • I also chroot and run: dpkg-reconfigure keyboard-configuration still can not fix it.

Can you help me to fix that?

Image of the login screen:

Image of the login screen

karel
  • 114,770
WestMountain
  • 131
  • Revert your changes to start with. – vanadium Jul 07 '22 at 06:54
  • @vanadium: What do you mean, I revert the change made to 2 newly editted files and still not work – WestMountain Jul 07 '22 at 07:51
  • I see. Perhaps try booting into a recovery prompt to dpkg-reconfigure your keyboard. The way with chroot may not have gone well. – vanadium Jul 07 '22 at 07:55
  • Some people have the same issue, I think this may not related to modifing of keyboard layout setting https://askubuntu.com/questions/1181649/unable-to-login-after-upgrading-to-19-10-from-19-04 – WestMountain Jul 07 '22 at 08:08

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