Ubuntu: Gnome login screen “loops” after computer has slept [duplicate]



Question:

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Using Ubuntu 16.04 with GNOME (which I added later, the original version has Unity), with a Dell Inspiron 15-3531.

After I turn off my computer (with the power button), or make it sleep (shut the lid), at the GNOME login screen which shows the profiles, I click mine, then enter my password. For about 2 seconds it seems like the computer will unlock as usual, but it then loops back to the gray screen with the profiles. It still responds to an extent, as it tells me if my password is incorrect.

I've only been able to temporarily fix it by a full shutdown, or by removing the battery for a minute. Granted, my laptop is old so it could just be that.

Edit: my .Xauthority file is not owned by root but by my user. Creating a new profile does work, however I would not necessarily want to use this new profile as my main. Any suggestions on how to change that? Renaming .Xauthority on my main profile returns "invalid user".


Solution:1

Usually, graphical interfaced (GUI) session is not successfully due to several situations, the most common are:

  • Corruption of ~/.Xauthority file: this should be corrected by just renaming or deleting this file; at next gui-login, this file is automatically recreated;
  • Inaccessibility of some config files and/or folders within $HOME folder: It can be corrected by chowning this files for user owner. Typing

    sudo chown username /home/username -hR

will grant all contents within $HOME folder to be accessible to username account;

  • Not enough space for /home partition: It's necessary to delete not-necessary content or resize this partition, to allow a successful gui-session.

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