THE BACKGROUND
Installed a fresh version of Xubuntu 15.04 and started up a game (Team Fortress 2), to my surprise it ran horribly even though I have a GTX 970.
My system apparently recognized the 970, so I went into Softwares & Updates and found out that I was using the Nouveau display driver, so I switched it to the proprietary NVIDIA binary recommended driver and applied then rebooted my system.
THE PROBLEM
Once it reached the Xubutu logo screen, where it has the loading circle, all I saw was that loading circle, and a blue background behind it, the rest was black, other than a loading bar with the words "Control + C to cancel system file check", not too surprised, I didn't press anything and left it to do it's thing. I came back about an hour later with a black screen, as if the PC was off, but it wasn't. I rebooted using the physical button and went into the grub menu and from there dropped to the root shell and uninstalled the driver using firstly mount -o remount,rw / and then apt-get --purge remove nvidia-* and then I hit reboot.
The system started up, and I was logged in, normally, as if nothing was happened, I opened the Softwares & Updates window and saw that the driver was set back to the Nouveau one, I guess that happened because I deleted the NVIDIA ones. So then, I google a bit and install some ppa's for drivers. Namely sudo add-apt-repository ppa:xorg-edgers/ppa -y and then sudo apt-get update and finally sudo apt-get install nvidia-352, the 352 being the version I got from the official NVIDIA site. Low and behold, I reboot, and the exact same thing happens. (Read paragraph 3 again).
So after I do the exact same thing, I think maybe it was just a fluke that the games weren't running so well, so I start one up again, and not to my surprise it was at 1 FPS on the menu screen.
What I've Tried
I tried reinstalling the system, another version of the driver, and 3 ways of installing the each driver:
- .run file from NVIDIA site.
- From Software & Updates.
- From
ppa:xorg-edgers/ppa.
Obviously to no avail.
And that's when this question comes in, everything is working totally normally on my PC, I didn't try anything else other than games (e.g. 3D modeling program, Benchmark, Compositor, etc...) but I'm pretty sure they'd have the same effect since all the games I tried did.
