I encountered the same problem as the two above. After I entered the password on the login screen and logged in, my computer screen would be black for a while, and then the whole screen would turn purple, and then it would enter the desktop normally. Although it does not affect normal use, it is too uncomfortable.
In addition, I clicked on the link of good-bye-gdm-flick and found that it seemed to have disappeared from the gnome extension store.
Due to work environment reasons, I have to use Ubuntu 20.04 system. What should I do to solve this problem that drives me crazy? Thank you!
