QUOTE(shockk @ Jul 15 2014, 12:41 AM)
Hey guys.
Sorry for this newbie question. How does the switchable graphics in Alienware laptops actually work?
For example, I seem to be able to switch between the integrated graphics and discrete graphics by pressing FN + F5 keys, and it requires a reboot to switch back and forth between the integrated and discrete graphics.
I was thinking, with Nvidia Optimus technology, shouldn't this be automatic? Like when I'm 3D gaming, my discrete graphics turns on and vice versa when I'm not gaming.
And the funny thing is, when I first got my AW17, the default was set to the integrated graphics! lol. I couldn't even run TitanFall at maximum settings properly then, and after I switched to discrete graphics (FN + F5 keys) and rebooted - then only everything became silky smooth.
Any thoughts? I tried to Google up some info about this but found none, hmmm.
Whoever can shed some light, I would be most grateful!
*side note: for comparison sake, on my MacBook Preo Retina 15", under Mac OS X, the discrete GPU automatically kicks in whenever I'm doing anything graphic intensive, and it reverts back to the Integrated Graphics when I return to doing some light work.
the fn key combo actually means turning nvidia optimus on or off.
when you run igpu, that means nvidia optimus is enabled, and gpu automatic switching is in effect. you might need to add apps that need discrete gpu in the nvidia control panel.
reference:
1.
http://www.engadget.com/2013/09/15/alienwa...-and-17-review/2.
http://www.youtube.com/watch?v=IAVWZQVU7uk3. goto
http://support.dell.com/alienware, search for article id 439417. you can get optimus test tool there.
edit: if you do a fresh windows install, there is a link in the article no. 3 that tells you the right orders to manage both igpu and dgpu drivers. (i.e. to install, start with intel gpu driver, then nvidia. to uninstall, remove nvidia first, then intel drivers)
This post has been edited by horns: Jul 15 2014, 09:13 AM