I watched the movie yesterday morning on my own. It's a moving movie, and it's great! The reason to choose this movie is this tweet. I always have the interest in the Indian people in America. They are kind of our Asian's relatives, aren't they?
Three things made me love this movie.
Indian people deserve a better treatment.
Previously, I have updated the firmware several times, so when I saw there's a new update, I clicked the "Update" button without too much thoughts. Yes, I got trouble this time. I got a black screen while the system is not dead. I can log into the system by pressing Alt+Ctrl+F2, no gui, but I can do something to fix it. It is good enough. I searched on my cellphone to try find something. And the following article helped me.
In my case, I guess that the root cause could be the nvidia driver, so I followed the [Reinstall NVIDIA Driver] section in that article and it did save my life.
# remove current driver
sudo apt purge ~nnvidia
sudo apt autoremove
sudo apt clean
# reinstall it
sudo apt update
sudo apt full-upgrade
sudo apt install system76-driver-nvidia
In case someone else got trapped into the same situation, I wrote my solution here and hope it helps.
Eric and I watched the film tonight. He said it's so so. Obviously, he didn't see the profound meaning in the film. That's ok, after all, he is only 14 years old. I love this film. It always reminds people to question your current situation, and encourages people to get a change.
By my recommendation, my new workmate He (贺) moved to Ubuntu from windows, and he was annoyed of one thing: cannot input Chinese. And I have to google again to find out the answer. This is why I wrote this list for him like people and myself.
sudo apt install fcitx fcitx-rime
im-config # and select fcitx as the input engine
fcitx-configtool # > Add input method, remember to tick off `Only Show Current Language`