Закладки с меткой help / Ubuntu

Решение:

Just open dconf-editor and search (ctrl+F) for xkb-options and update the value. In my case, the value associated with the xkb-options key was

['terminate:ctrl_alt_bksp','lv3:alt_switch']

The option 'lv3:alt_switch' was the one that was causing my headache. I simply changed the value to:

['terminate:ctrl_alt_bksp']

That's it!

/etc/apt/sources.list
все адреса ubuntu исправить на
http://old-releases.ubuntu.com/

затем
apt-get update