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eimanrba
09-16-2014, 05:38 PM
I use a DP-to-miniDP adapter on the input of the laptop. Windows 8.1

1. I get the full resolution, but the refresh rate won't go beyond 120 Hz. Is there any way to get the 144 Hz?
Also the TURBO button on the side of the screen doesn't work, it only displays whatever frequency I've set in WIndows 8.1, doesn't change it.

2. How do I check if G-sync is even running? In Nvidia control panel, I can only find 3D Settings.


I suspect it might be this forced Optimus that messes with both these issues (refresh rate and g-sync). Has anyone succeeded in combining these two products?

Luckily I still have a few days to consider returning both. Or if it's the Optimus maybe an Alienware instead of the G750 is the way to go. Any help is appreciated

hmscott
09-16-2014, 06:37 PM
I use a DP-to-miniDP adapter on the input of the laptop. Windows 8.1

1. I get the full resolution, but the refresh rate won't go beyond 120 Hz. Is there any way to get the 144 Hz?
Also the TURBO button on the side of the screen doesn't work, it only displays whatever frequency I've set in WIndows 8.1, doesn't change it.

2. How do I check if G-sync is even running? In Nvidia control panel, I can only find 3D Settings.

I suspect it might be this forced Optimus that messes with both these issues (refresh rate and g-sync). Has anyone succeeded in combining these two products?

Luckily I still have a few days to consider returning both. Or if it's the Optimus maybe an Alienware instead of the G750 is the way to go. Any help is appreciated

eimanrba, that's an awesome monitor, and hard to find, I wouldn't return the PG278Q.

You are on the cutting edge of tech with G-sync

G-Sync Supported GPUs
http://www.geforce.com/hardware/technology/g-sync/supported-gpus

The 880m is listed... - Edit - it looks like Nvidia removed the 880m from the list... here is the 880m page and it now only shows Adaptive VSync, G-Sync has been removed.

http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-880m

Have you installed the latest Nvidia driver 340.52? It looks like another BETA is coming, perhaps as a WHQL release, we are due for a new Nvidia driver rollout.

What about the Intel driver, which version do you have installed?

I would like to think with updated drivers the JZ will support G-sync and the PG278Q.

You might do best to contact Asus directly through a Technical Inquiry, listing the specs / versions of the G750JZ OS / Drivers for Nvidia / Intel, BIOS version, and some screen shots / photo's of the settings / results you are seeing zipped up and attached to the Technical Inquiry - and get Asus help you debug the pairing.

https://vip.asus.com

Please update us here as to your progress :)

Wulff
09-16-2014, 08:43 PM
i wouldnt mind having that monitor either :P but the price is a bit to much for me at this time :)

gazzacbr
09-17-2014, 06:41 AM
+1, that sure is a nice monitor.
sadly, my old dinosaur 770M is not on the list :(
but at least i get to save my money ;)

BOSS330
10-07-2014, 05:57 AM
I use a DP-to-miniDP adapter on the input of the laptop. Windows 8.1

1. I get the full resolution, but the refresh rate won't go beyond 120 Hz. Is there any way to get the 144 Hz?
Also the TURBO button on the side of the screen doesn't work, it only displays whatever frequency I've set in WIndows 8.1, doesn't change it.

2. How do I check if G-sync is even running? In Nvidia control panel, I can only find 3D Settings.


I suspect it might be this forced Optimus that messes with both these issues (refresh rate and g-sync). Has anyone succeeded in combining these two products?

Luckily I still have a few days to consider returning both. Or if it's the Optimus maybe an Alienware instead of the G750 is the way to go. Any help is appreciated

Running your exact setup mate and have the same issue. (only 120Hz and no G-Sync option)

I did some research into this and apparently, you need a MiniDP - DP cable Version 1.2 to get G-Sync working with 144hz.

MIni DisplayPort adapters don't have the same bandwidth as the DP Ver 1.2 cables.

PC Case Gear sell them for about $20

Ozy311
10-17-2014, 06:52 PM
I don't see that 880M on the list and I am wondering if the new 980M on the G751 is supported with G-Sync. That would be frustrating if it was not.

hmscott
10-17-2014, 09:12 PM
I don't see that 880M on the list and I am wondering if the new 980M on the G751 is supported with G-Sync. That would be frustrating if it was not.

Ozy311, thanks for the heads up, I updated the posting, noting Nvidia removed the 880m from the G-sync list, and removed G-sync from the Technologies list for the 880m, here is the updated text:

G-Sync Supported GPUs
http://www.geforce.com/hardware/technology/g-sync/supported-gpus

The 880m is listed... - Edit - it looks like Nvidia removed the 880m from the list... here is the 880m page and it now only shows Adaptive VSync, G-Sync has been removed.

http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-880m

Also, eimanrba never logged in again since his postings above, so we can't ask him what he tried and if it worked.

Ozy311
10-17-2014, 10:51 PM
I hope they add it back in. My desktop machine is a Triple SLI GTX780ti with 3 1080p 120hz Asus screens. Its gravy. I am so addicted to high HZ screens for FPS gaming its not funny. I hope the G751 IPS screen doesn't have bad input lag. I am also hoping to be able to overclock the screen. If we could use an external G-Sync monitor, I'd buy the Asus G-Sync screen to pair with this laptop.

hmscott
10-17-2014, 11:13 PM
I hope they add it back in. My desktop machine is a Triple SLI GTX780ti with 3 1080p 120hz Asus screens. Its gravy. I am so addicted to high HZ screens for FPS gaming its not funny. I hope the G751 IPS screen doesn't have bad input lag. I am also hoping to be able to overclock the screen. If we could use an external G-Sync monitor, I'd buy the Asus G-Sync screen to pair with this laptop.

Ozy311, it doesn't look good, the 970m/980m have also been removed, and removed from the individual specifications pages:

970m
http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-970m

980m
http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-980m

Asking Asus and Nvidia seems like the next best step - to see if this is temporary as the current and near future drivers aren't supporting the G-sync function, but they are still working toward support for the 880m/970m/980m.

I wish I had taken snippets - images of those data pages before - as I recall there being more little tiles than I see now - so perhaps other functionality was removed from the specifications.

Some of the specifications at the time did say to be enabled in a later driver release. Maybe it was causing too much confusion including the future support of technology in those pages and the G-sync list - people weren't reading the details and were taking it as already available.

I am hopeful that with the G751 discarding Optimus and connecting directly to the 970m/980 it would open up all the Nvidia functionality lost behind the Intel iGPU in the JM/JS/JZ.

Time will tell :)

eimanrba
12-12-2014, 11:56 AM
Running your exact setup mate and have the same issue. (only 120Hz and no G-Sync option)

I did some research into this and apparently, you need a MiniDP - DP cable Version 1.2 to get G-Sync working with 144hz.

MIni DisplayPort adapters don't have the same bandwidth as the DP Ver 1.2 cables.

PC Case Gear sell them for about $20

Did you have any luck with this solution?

eimanrba
12-12-2014, 12:03 PM
hmscott:

I apologize for not bringing updates, I've been somewhat drowned in work lately.

I have found no resolution. Trying your advice now, to ask ASUS support

Sticker
12-22-2014, 03:01 PM
I use a DP-to-miniDP adapter on the input of the laptop. Windows 8.1

1. I get the full resolution, but the refresh rate won't go beyond 120 Hz. Is there any way to get the 144 Hz?
Also the TURBO button on the side of the screen doesn't work, it only displays whatever frequency I've set in WIndows 8.1, doesn't change it.

2. How do I check if G-sync is even running? In Nvidia control panel, I can only find 3D Settings.


I suspect it might be this forced Optimus that messes with both these issues (refresh rate and g-sync). Has anyone succeeded in combining these two products?

Luckily I still have a few days to consider returning both. Or if it's the Optimus maybe an Alienware instead of the G750 is the way to go. Any help is appreciated


So i guess there is no hope for my Asus G750js to enjoy a 144hz external monitor? i've been reaching online for like the past 3hours.

1) Bought my AOC G2460PQU today
2) Bought a Mini Displayport to Displayport cable ( for the 144hz,since hdmi cant output anything more than a 60hz)
3) I can't set my external display as my primary thanks to optimus.
4) Under Nvidia control panel, under physx, i cant set my external monitor to GTX870m. It clear shows that my displayport is linked to the intel hd graphics.
5) i just need to run at 144hz
I hope i can find a solution soon. else is just feels like my $300 bucks thrown into the ocean.

Sticker
12-22-2014, 03:48 PM
apparently, this guy said it worked for him ?
http://rog.asus.com/forum/archive/index.php/t-49529.html? look at the last post

Max refresh rate on my intel graphics properties is 60hz, im dying to get my hands on the 144hz which is just right in front of me ! any kind soul please enlighten me :(

ldelczeg
12-26-2014, 10:10 PM
Run with external monitor only. If you use 2 screens the lower refresh rate will decide. i think you laptop has 120 hz screen, as you not mentioned what hardware you have. GPU and screen is not enough usually. with one screen connected trough digital output you should be run on Nvidia gpu only. In that case optimus dont count. This depend on the build of the machine. As long as i know digital outputs are directly connected to the nvidia vga. In single display mode (only external, and laptop screen turned off, on the windows mobility center) your external screen should work as intended. G-sync is different story, you have to go to nvidia forums instead.

ldelczeg
12-26-2014, 10:13 PM
Can you post a screenshot of your display port connection in nvidia control panel? it should show 2 connection: laptop screen, external screen (both screens used).