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.