My story is like this:

  1. opened "setting", changed keyboard input from "ibus" into "fcitx"
  2. in a terminal, installed google pinyin for ubuntu by: $sudo apt-get install fcitx-googlepinyin
  3. restarted the laptop.
  4. At the login page, I input password to login. Then, forever black screen, desktop failed to load.

Then, I tried to solve the problem by uninstalling fcitx-googlepinyin by the following:

s1. keyboard ctrl+alt+F3, enter TTY, the terminal version of the system.

s2. tried the following three ways of removing fcitx-googlepinyin, together with a restart, and failed.

*$sudo apt-get remove  fcitx-googlepinyin* 

*$sudo apt-get remove --autoremove fcitx-googlepinyin*

*$sudo apt-get autoremove --purge fcitx-googlepinyin*

May I ask, do you know how could I enter the normal desktop of the ubuntu? How could one save all the user files to portable storage from the terminal? After that, one can safely re-install the system. Thank you.

  • Log in into a TTY (Ctrl+Alt+F3), run the command im-config -n ibus and reboot. – Gunnar Hjalmarsson Jul 1 '20 at 16:02
  • Thank you, Gunnar. The command solved my problem fluently. : -) – LynnSunshine Jul 1 '20 at 16:16
  • Good. I have no idea why you run into that kind of issue by switching to fcitx though. It shouldn't have stopped you from entering a graphical session. – Gunnar Hjalmarsson Jul 1 '20 at 16:39
  • I am also wondering where is the potential incompatibility between, fcitx and *#55~18.04.1-Ubuntu SMP, X86_64 GNU/Linux. – LynnSunshine Jul 1 '20 at 17:12
  • If you need help to install it properly you may want to ask a new question (and close this one). – Gunnar Hjalmarsson Jul 1 '20 at 17:32

The problem is solved by Mr. Gunnar Hjalmarsson in the comment under my questions. Lots of thanks.

Log in into a TTY (Ctrl+Alt+F3), run the command im-config -n ibus and reboot. – Gunnar Hjalmarsson

However, how this could have happened, is still unclear.

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