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I have a problem with ubuntu. When I tried login, I was seeing a black screen and again login screen was coming. I tried some codes but they didn't work. Codes which I tried;

chown username:username .Xauthority
mv .Xauthority .Xauthority.bak
sudo chmod a+wt /tmp
sudo apt-get purge lightdm
sudo apt-get install lightdm
dpkg-reconfigure lightdm

However I creat a new account and it is working. Well, I want to use my main account but I can't work it. Can someone help me? Thanks.

Danibix
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sherlocksm
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3 Answers3

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For me, for some reason, the owner of my home folder was changed to root. I just changed it back and I was able to login. Thankfully SSH was working for me so that I could make this change.

sudo chown user:user user

n3o
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I had login looping problem after upgrade of my old Thinkpad T-61p with nVidia Quadro FX 570M/PCIe/SSE2 graphics card. Right direction gave me this post, but hasn't helped either. So I start to look inside /var/log/Xorg.0.log and there it was: my card was supported only by nvidia-340 driver. All what was needed was:

sudo apt install nvidia-340
sudo reboot

My learning: read content of /var/log/Xorg.0.log

Josef Švenda
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I had a same problem and I solved it. Problem with login loop showed up after irregular shutdown. I have solved the problem as follows:

I saw that my home folder did not have w attribute.
I added w attribute and reboot.
Click Ctrl + Alt + F1 and type in the console

sudo chmod -R +w ~
sudo reboot

Note: ~ home folder, +w add write attribute, -R recursive.
That's all.

Sumeet Deshmukh
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mikia
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