Recently I managed to solve the login loop problem and successfully logged into the desktop. But it seems my solution doesn't last forever, every laptop shuts down for a while, I have to repeat the way I found on askubuntu.com

When I'm already in the login menu,

ctrl + alt + F3

startx

and I'll login looks like dekstop but it's empty, ctrl + alt + T (for pen terminal)

dpkg-reconfigure gdm3

After that I can login in my ubuntu. Before that I didn't have the .Xauthority file. I found the file is on cd ~

So I copy that file to ~/../home/myusername and change from root to myusername like this.

chown username:username .Xauthority

After reboot, login loop just gone, but now back again and I should do dpkg-reconfigure gdm3 every reopen my ubuntu.

How to fix this black screen after enter password forever?

ubuntu 20.04

dual boot with windows

Edit Question 19 Mei, 2022

Even now I'm not use ubuntu anymore, but this may help someone. First think I know that I have problem with AMD Graphic Driver and this make my ubuntu design not HD

When Graphic Driver not match with my ubuntu, of course this will make some issue when login, hibernate, or something that work with on-off screen.

So the only way to fix this is try to upgrade your kernel and search kernel that match with your hardware

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