PDA

View Full Version : G750jz dedicated gpu can't be used with DX8 - solved?



gigauae
05-11-2016, 10:13 AM
Hi I purchased this laptop around a year ago where specs said that its equipped with 880m nvidia.
However when I run some old games (ffxi to be specific) I get cheap performance.
I did some digging into the issue here and with help of mr Google. I found out that the Laptop have Intel integrated gpu, and the nvidia is secondary
I tried enforcing nvidia usage from nvidia control panel with no result.
Disabling from control panel Intel doesn't help as disabling makes nvidia disabled as well.
Is there any fix or a work around for this?
No offense I like asus products but I feel that I got tricked with this laptop, when specs mentioned dedicated gpu they didn't warn me about Intel integrated gpu, and there is no way to disable that from the bios.

SOLVED: with downgrading 8.1 >> windows 7
thanks goes to https://rog.asus.com/forum/showthread.php?47245-How-to-install-Windows-7-on-the-new-G750JS-G750J-and-G750JZ
for the windows installation guide.

MrRuckus
05-11-2016, 04:00 PM
You were not tricked. Many laptops with "dedicated GPU's" would also have this problem, not just Asus. This is because Intel includes their GPU on die of the CPU, so most of the time its there no matter if you have run a laptop with a dedicated GPU or not.

Again this is not only going to happen on Asus laptops, it would happen on any gaming laptop built on a GPU era of directx 9 or higher, according to this post:
https://www.reddit.com/r/ffxi/comments/3xxxyy/ffxi_not_using_dedicated_gpu/

EDIT: So the problem is basically due to the game's age. It uses Directx 8.0 which doesn't know how to call the Geforce dedicated graphics via Nvidia Optimus. Looks like Nvidia Optimus only works on games with directx 9.0 and greater, at least thats what one person has come up with, which makes the most sense to me.

gigauae
05-11-2016, 04:32 PM
You were not tricked. Many laptops with "dedicated GPU's" would also have this problem, not just Asus. This is because Intel includes their GPU on die of the CPU, so most of the time its there no matter if you have run a laptop with a dedicated GPU or not.

Again this is not only going to happen on Asus laptops, it would happen on any gaming laptop built on a GPU era of directx 9 or higher, according to this post:
https://www.reddit.com/r/ffxi/comments/3xxxyy/ffxi_not_using_dedicated_gpu/

EDIT: So the problem is basically due to the game's age. It uses Directx 8.0 which doesn't know how to call the Geforce dedicated graphics via Nvidia Optimus. Looks like Nvidia Optimus only works on games with directx 9.0 and greater, at least thats what one person has come up with, which makes the most sense to me.

so i got a workaround the issue, i have re installed windows 7, and according to nvidia control panel indicator the game is running on the dedicated nvidia,
seems its more OS compatibility with optimus