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I started up my ubuntu and it lead to a login prompt. I input the correct password for the account. It went to a black screen for a flash, but it made the default "bongo" error sound and aborted back to the same prompt. No error was displayed.

I know this is the right password, because inputting any other password will make the prompt say "Invalid Login". Only the correct password causes the error.

Also, on that note, my account is set to automatic login.

What can be done to fix this?

corvid
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4 Answers4

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From the info that you have provided it seems to me that there might be an issue with the display manager, it seems the display manager could not start your session or load the desktop environment.

There might also be an issue with the permission of the /tmp folder (happened in my case).

heemayl
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  1. CTRL + ALT + F2

  2. sudo rm /home/(username)/.Xauth*

  3. restart lightdm

  4. back to normal.

earthmeLon
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TardisGuy
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I had done chmod 555 to my /home folder which created the problem. The solution is to change the permissions back by using someone else's laptop.

  1. do ssh (your laptop username)@(your IP)
  2. enter password(here u will be able to log in because you are accessing via terminal)
  3. cd ..
  4. chmod 755 (your username on laptop)

It solved the problem for me.

Ashish Batler
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I have solved this problem by deleting the file.I created using the same method above, just substitute the filename. I created a .sh file in /etc/profile.d and then reboot, the problem comes here.

Changjiang
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