G-sync coming to notebooks with 75Hz displays?

Videocardz just posted this. Thought it might be interesting for you mobile gizmos

Exisiting notebooks will get new 75Hz displays it seems, unless they overclock the ones they are currently using and adding driver support. Also I dont know if WhyCry knows this but he claims these notebooks are without the G-sync module that you find on desktop. They call the mobile variant "G-Sync Direct".

I`m sure we will hear all about it at Computex which starts tomorrow I think







http://videocardz.com/55959/nvidia-also-launching-mobile-g-sync

 

No G-Sync module, huh? I'm curious how/if they fixed the flickering at low FPS and display dropout (blackout) during stalls in the graphics pipeline (e.g. spikes in CPU/disk activity). Those were the main problems with the experimental mobile G-Sync that was exposed early this year and were attributed to the lack of a G-Sync module.

 

Love it! I've been waiting for this so long now.

 

my ROG swift is coming Tuesday, nice to see it coming to the laptop market as well

 

Because laptops use eDP (the newer ones at least, the ones in question for sure) and G-SYNC, just like FreeSync are built on top of the very same standard - eDP 1.3 (which introduced Panel Self-Refresh (PSR), year 2011), which desktop displays lack (HDMI, DP etc, not eDP though), hence the necessity for extra module. Yet another marketing term, nothing new in terms of pure technology.

 

But we will finally get to play with it. Who doesnt like smoothness triturbo

 

eDP and no Optimus aren't the only requirements for mobile G-Sync. It's far from that simple. Read this. The desktop and mobile G-Sync experiences will be different. The G-Sync module has something to do with that, it's not just a gimmick.

Edit: You mentioned Panel Self-Refresh. Don't you mean Adaptive-Sync? PSR is a processor power-saving optimization where the contents of the screen are saved to a local DRAM buffer so that the LCD controller doesn't have to refresh at 60Hz when it's unnecessary, such as when displaying static content. That's not what we're talking about here.

 

Will immediately buy one of these 75Hz panels for my GT72.

G-sync is a major game changer.

 

No support for P6xxSx series?

 

Cuz Optimus, bruh

 

Maybe this will be what gets Clevo to go the mux route on all of their featured laptops (P6xxSx currently).

 

Somehow I doubt that if it comes at the expense of diversification in their product stack. Honestly idk why you keep ragging on Clevo when they refused to bow down to BGA like MSI did.

 

You might already have it, who knows.

Optimus~ tis the price for battery life.

I doubt it. It's still limited by the I/O of the iGPUs. If you're on the eDP with a high refresh display that the iGPU cannot support, switchable graphics *WILL* be disabled. Case in point: Alienware 17 R1 3D edition. The ability to turn on the iGPU was entirely disabled, because the iGPU's I/O could not support it. It will likely be the same with these 75Hz Gsync panels. Remember: MUX switches kill the downsides of Optimus, but they still implement limitations in the laptop because everything in it needs to be tailored to the iGPU's I/O.

 

It says in the article what I thought, but didn't wrote, since I was looking for such test - the eDP version, it's 1.2a in the test machine, PSR was introduced with 1.3. So, thank you for the link, it confirmed my thoughts.

Actually it's exactly the technology. It was intended as a power saving feature for notebooks, but someone decided that it can be turned the other way around and finally remove the flickering. Basically it tells the display when to refresh - it's power saving when "There's nothing new to draw, the user either died or fell asleep", and performance when "Woo new frame, yet another one and another one, someone's playing FPS (pun intended), refresh you lazy display".

 

So you're saying mobile G-Sync leverages an eDP 1.3 PSR-enabled TCON to replicate the functionality of the G-Sync module in desktop monitors?

 

Yes. And that's what AMD made with FreeSync - implementing the eDP only feature (what PSR was, again it was power-saving, and who needs the extra hurdle for a couple of Watts at best on desktop, performance is another story as we can see) in the desktop monitors as well, without the need of extra "expensive" (the board is not expensive, it's nGreedia that made it look so) hardware.

 

So basically, unlike desktop G-Sync that actually required the module because DP 1.2a didn't exist yet, mobile G-Sync can technically work on any eDP 1.3 screen for free. Therefore Nvidia is truly being a greedy dick this time around.

Makes sense. What else is new.

 

meh, so no G-Synch for Optimus-based laptops?

I was really excited, when I first read the news. I was hoping, it would come for my VN7-791G, too.

 

Yeah sorry, non-Optimus only

 

Why would it come? The display is run through the iGPU... that's the point of Optimus. Intel can't Gsync

 

Wish Intel would include VRR in its GPU drivers so Optimus/Enduro users aren't left out in the cold

 

A bit more to that, but yep. Money, proprietary, money, money, a lot of fancy marketing, even more money and even more proprietary (because there's no money in free stuff) and utter $hit the whole 970 situation was, and let's not forget controlling - clockblock anyone? That's basically what nGreedia is. Their GameSux finally hit the nail for me. I was biased towards AMD, that's no secret, but with that thing I would never consider any of their products. I'll sell what I already have, and team red would be. I was couple of weeks, maybe a month away from getting hynix vRAMed 780m, not anymore. Who doesn't like free stuff - nGreedia.

You are right - Intel can't G-SYNC, 'couse you know, proprietary, but might as well FreeSync, because the open standard and specs are there. Intel can make eDP 1.3 compliance GPU which can work fine with the PSR function, and can be used the other way around with FreeSync.

 

Well, freesync is not gsync. You could probably force Freesync if it came out open *AND* intel adopted it, but current intel iGPUs don't have the capability as far as I know. And there's no telling if Skylake's default chips have the capability either. And we all know that Iris Pro just makes things way too hot to make sense.

But I am glad that things like DSR and desktop capture for Shadowplay and such are finally coming out for non-optimus users. I'm tired of us not having features that clearly work if we hack them (like Mr. Fox hacking in desktop shadowplay recording, or how I had NVENC working on my 780Ms the day the NVENC encoder was available to the public, as it was added to OBS and I confirmed my ability to use NVENC to stream and record) just because they have problems with Optimus.

 

Curious if people with MSI GT72 would try this driver... would they have GSYNC as they had it with leaked one months ago?

 

Apparently the new driver doesn't "unlock" g-sync on my GT72( 980m) with the LG IPS display. I think it should because mine worked with that modded driver with g-sync

 

The new driver said nothing about notebook G-Sync for current laptops. Without the Nvidia license it won't work.

 

Wondering if the license will get updated in Prema's BIOS sometime... XD

 

Looking forward to 4k with gsync. Would it be on the sharp igzo 4k laptop panel? Games getting 30-40 fps at 4k on the 980m will hopefully look much better

 

Just curious though, why did PCPer's G751JT have those problems with flicker and losing video signal when they tested the leaked G-Sync driver? Doesn't mobile G-Sync use standardized eDP features?

 

As far as I know all the devices had that issue and lower FPSes. Maybe it really just was a broken driver? In nVidia Inspector it killed power and temp target options for me.

 

It sounds like a hardware not driver issue. The laptop acted like it expected the presence of a G-Sync module during those edge cases (sub-30 FPS, game engine stalls) but didn't find it, that's why it flickered and cut out the display. Because remember, one of the purposes of the G-Sync module is to store frames in its memory in case FPS dropped below the panel's VRR range. So below 30 FPS, it duplicates frames to prevent flickering, and during sudden drops to 0, it fills in to prevent the display blacking out. But if a PSR TCON (which has an on-chip frame buffer) replicates the functionality of the G-Sync module, why did we still see those problems?

 

That one is beyond me.

Unless, it really was a driver issue, where the driver was not properly emulating the method you spoke of just now. Because as we all know drivers tell the PC how to make the hardware work, so... if the driver was not complete or good, then it's quite possible that the gsync functionality was also incomplete (which is why it was never meant to be a public release)

 

Well it was an early, closed channel preview driver, which got leaked accidentally by an employee of Asus.

Maybe Nvidia wasn't done implementing the functionality. Everything is a little bit plausible, at this point.

 

That and as I said, I don't think that the panel was proper revision. Only recently and I mean VERY recently we see eDP 1.3 panels coming up with hints that only "this" panel would work for the Batman for example. That's the reason only certain panels would support it and others wont - eDP revison. Well, we are talking nGreedia after all, so there might be another reason - things might be a bit more tied-up with whitelisting and stuff, so even if a panel is proper spec it wont work. That's pure speculation, time will tell if true. I hope that they've left at least this one alone and only count on the technology inside the panel and not if the manufacturer gave them money or not (this might explain why if the ASUS' panel was proper spec didn't worked).

 

eDP 1.3 was published in 2011 and devices started shipping in 2012, so idk why it would take this long. It's already up to 1.4a now with those devices expected to appear next year.

 

Nvidia selected 75Hz displays probably means that Nvidia checked which 60Hz panels can be safely overclocked to 75Hz. And display being 75Hz perhaps decreases those black stalls after non-refresh due to higher rate = it takes 1/75-th of second to wait for next refresh instead of 1/60-th.
Also perhaps those new feature that you can disable V-sync while G-Syncing also took affect.

 

I know when it was published, it usually takes time. Why putting function, that wont be used, or costs a few cents more. Haven't dug deep enough to check the panels' revisions, but the only transition that happened quite literary over the night was to 16:9 and that was for a few cents as well, so I hope you see the pattern.

 

P770ZM-G incoming. Will report out on it when I get it. Just hope it's all it's cracked up to be.

 

Already?

 

Inb4 sir wingnut purchases the notebook right there on the spot

 

Tee hee. I am tempted. Screen is supposed to be gorgeous. This one comes loaded too. I've been wanting to wait for Skylake, but I may just jump the gun and go with it. I regretted not keeping the P750ZM I reviewed. May not let this one get away! We will see, we will see. Unfortunately my schedule is overloaded at the moment, but will definitely give it an in depth look at the G-sync capabilities.

 

If you get it, we need to get you a 120Hz panel (as that P770ZM will come with eDP and since they take the AUO 90% glossy panel the LCD cover dimensions can handle the LP173WF2-TPB1) and see if it can work without issue. THEN see if it gSyncs XD

 

TN display? Yuck.

 

Come on Wingnut don't be like that, you know 120Hz Gsync with that sexy 980M >>>

 

So is it a new display or like James say, approved displays they know will hit 75Hz without issues?

 

LCD in P770ZM-G is LG LP173WF4-SPD1. Windows Device Manager shows Hardware ID as LGD046C

http://www.panelook.com/LP173WF4-SPD1_LG Display_17.3_LCM_invitemdetail_64227.html

 

Did the beast arrive????? Can't wait to hear your thoughts!

 

Has your p77 arrived? :O Exciting! Looking forward to your thoughts on it

 

If that's the fitting panel, that's the same eurocom panel that has been selling the whole time. That should mean the LCD cover can handle the LP173WF2-TPB1. =O WINGNUT YOU MUST TEST. 120Hz GSYNC. TESTTTT.

 

Where to buy!? laptopscreen isn't always the exact LCD. But I don't know that there is any substitute for TPB1.