Installed Linux Mint 17, black screen when logging in

[RikuoAmero]

Okay, here's the lowdown. The computer I'm talking about is an old machine I once had, gave to a mate, then got back off him that I have repurposed as a HTPC.

Specs are

Intel Pentium E8400 CPU Dual Core 3.0GHz

4GB DDR2 RAM

580W PSU

XFX Geforce GTX 240 512MB

Lite-On Blu-ray Burner

Hard Drive A: Ubuntu 14.04

Hard Drive 2: Three Partitions, P1 Windows Vista Home Premium 32-bit, P2 Data drive, P3 used to have Windows XP, but was formatted.

Just to be clear, that's two separate physical hard drives.

I have not had a problem up to now with either Vista or Ubuntu, but I decided to swap Ubunto for Linux Mint.

 

Today, I booted into Vista, installed ImgBurn, downloaded Linux Mint 17 Cinnamon 32-bit iso and burned it to a DVD. I then booted off that disc (had to go into compatibility mode, running off of VGA just to be safe, because I was getting a garbled picture). I installed the OS onto the drive that had Ubuntu, but now, whenever I try to boot, and enter my user-name and password, all I get is a completely black screen. I'm currently running off the motherboard's VGA, since I have yet to install Geforce drivers (and I still get a garbled picture if I'm connected through the card). I see my mouse cursor but it doesn't respond.

[Accidentx13]

Either GPU is not displaying the correct screen for Linux Mint once logged in. Did you fully remove Ubuntu before you installed the OS of Mint ? Quite possibly the system might not able to handle anymore images as the HDD will be getting tired.