Mouse trouble with lubuntu 14.04 on hp dc7700p

[TheWaffle]

I installed lubuntu 32bit on my hp dc7700p with no issues. It was installed onto a 80 gb sata disk for the root filesystem and another for the home directory.
At the login screen I can move my arrow with no problems.
Shortly after I login my arrow will stop responding, but I can still use my mouse (I just cannot see where it is).
Also after my arrow stops responding, LXRandR stops detecting any monitors.
Every time I start the system it wants to display in 1080p.
I have to quikly switch the display settings before the mouse stops responding.
Also if I log off I just get a black screen.
Nothing happens and I have to hard reset the computer.

[DaveLembke]

At clean install and having this, it sounds like a bug with Lubuntu 14.04. Have you run the updates to see if they already patched for this bug? If you can launch terminal you can tell it to get updates and then reboot it and maybe the problem will be solved.

Are you using integrated video or did you add a video card, and if so what video card are you using?

Also how much RAM do you have in this system?

[TheWaffle]

I am using integrated video and the system was running on 1 gb of ram.
I added more ram and the system became stable.

I also updated lubuntu.

I dunno which fixed my problem; but anyways, it is now running as it should.

Thank You