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I have tried all solution advices on askubuntu platform. But no way to solve that login loop issue.

When I select the latest Nvidia proprietary tested driver (nvidia-367) , ubuntu stucks on login loop.

Also I tried to erase all disk and reinstall ubuntu but no way to solve that issue.

By the way it occured after an software updater alert and I didn't read it and just accepted(that was different than software updater i think it was about drivers).

So what can be the main problem and why erase all disk and reinstall ubuntu couldn't work ?

user1136403
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3 Answers3

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i used to have the 7737 version of that laptop but i don't remember using 14.04 on the bare metal with that one, it was 16.04 mostly and maybe 15.10.

If you don't have a specific reason to be stuck on 14.04 then i would recommend upgrading to at least 16.04 as there are many worthwhile improvements in hardware support for that laptop.

Make sure you have the graphics drivers ppa setup , you should use the drivers nvidia-304

To do that just run this

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-304 nvidia-prime
sudo reboot

That version is correct at the time of writing, if anyone is reading this later they should check the recommendation on this page https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa

Amias
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Go to TTY and try this (replace-user_name with your user name):

sudo mv /home/user_name/Xauthority /home/user_name/Xauthority.back

If it didn't work check if permissions and execution mode is correct.

M. Becerra
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Robel Tilahun
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the reason why you can't "restore" back to a working status even without a full re-installation is because it's a combination problem between your hardware and a software update...so, there are two solutions:

  • go back manually to a software state prior you update and then never update your software
  • update to latest ubuntu version

the second one is the best

mattia.b89
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