I know the likes of this question have been asked many times, but I couldn't find an answer that would work for me, so I'm asking a new one!
As the title suggests I encounter a login loop after installing nvidia driver via run file. I must say that for some reasons I cannot use apt-get install nvidia-… so please don't suggest this.
The problem started after an update and a reboot, where I was greeted with a black screen. As I have had experienced this before I tried to reinstall the driver but with no use.
I tried the steps suggested in https://askubuntu.com/a/423619 , but this didn't solve it (only everything in the login page became very big!). I tried it with three different drivers (352.99, my previous one before this catastrophe, 361.77, 367.57). I have tried the steps suggested in https://vxlabs.com/2015/02/05/solving-the-ubuntu-14-04-nvidia-346-nvidia-prime-black-screen-issue/ which has worked on my other laptop before, but again no use.
I added the line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nouveau.blacklist=1"
to /etc/default/grub and then ran sudo update-grub, but still no use.
The thing is I really need nvidia driver for my work and I can't replace it with other choices, also I really don't want to reinstall my ubuntu because then I have to reinstall so many things I had in it. I'm using an HP laptop with a 850M gpu on it and Ubuntu 14.04.3.
I've been searching for two days trying everything but nothing works! Thanks in advance for your help.
I would also appreciate any hints as how to avoid such a problem in future, meaning to have my nvidia driver, update my system and yet don't get stuck with things like login loop, black screen etc.