First time question--
My Asus G750JW laptop with a 765m gpu seems to work fine. Running Ubuntustudio 14.04.
My Asus Q551 notebook with a 840m locks or freezes soon after log-in. The Q551 has Ubuntu 14.04 (Lightdm/unity) with Ubuntustudio features installed later. I have tried Nvidia drivers from Ubuntu, Xorg-Edgers and Nvidia propriatary repositories, all freezing. The on-board Intel seems to work fine. But Lightworks software requires Nvidia features. I have purged and reinstalled Nvidia drivers to no avail. (331 to present) I should be using 340.xx. No black screen as some have reported.
Many suggestions out there, but they haven't worked so far. My question-- does anyone here have a good work around for this issue?