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    Nvidia G-Sync hack - it works on every display supporting DisplayPort 1.2

    Discussion in 'Gaming (Software and Graphics Cards)' started by Marecki_clf, Jan 28, 2015.

  1. James D

    James D Notebook Prophet

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    That Chi Mei TN panel is same in GT72 TN and it is confirmed 100% that with MSI GT72 with TN and 970M has no Gsync. I don't buy that it is because of GPU.
     
  2. iaTa

    iaTa Do Not Feed

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    Oh arse, I thought you were running Win 8 not 8.1.

    New inf incoming as all the changes I made were for 8.
     
  3. octiceps

    octiceps Nimrod

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    Yeah, the G751JT PCPer tested has 970M.
     
  4. iaTa

    iaTa Do Not Feed

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    Ok updated for 8.1 (Gamernab).
     

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  5. metacarpus

    metacarpus Notebook Evangelist

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    Tested. No change.
     
  6. sk3tch

    sk3tch Notebook Deity

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    No LG IPS. No workie. Pretty simple.
     
  7. octiceps

    octiceps Nimrod

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    The 346.87 driver was probably only designed to support G-Sync on the ASUS G751 and just so happens to work on the MSI GT72 because it uses the same panel. That Gamenab glory hound totally overhyped it, he should get into marketing or something.
     
  8. sk3tch

    sk3tch Notebook Deity

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    Yes. The GT72 side was probably a coincidence due to the same hardware. It was an ASUS Nordic tech that accidentally posted it publicly. No one has been able to get it to work that does not have that panel (LG Phillips LP173WF4-SPD1 (LGD046C) monitor connected via eDP).
     
  9. metacarpus

    metacarpus Notebook Evangelist

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    Was worth a try. I do notice stutter in games, was hoping this would fix it. Anyway, thanks for all the attempts iaTa, reverting back to the 344.24 driver since at least I can overclock on it.
     
  10. James D

    James D Notebook Prophet

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    Can't you overclock on R346.87?
     
  11. heibk201

    heibk201 Notebook Deity

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    how did you modify the inf file? I have a 970m and I couldn't install even though 970m was clearly listed in the inf file
     
  12. TBoneSan

    TBoneSan Laptop Fiend

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    Just for the record.. Didn't work with my Alienware's internal display or an ASUS VG248QW via Display Port.
     
  13. iaTa

    iaTa Do Not Feed

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    That's because your device subsys ID is not in the inf.

    You can change one of the existing 970M IDs to your full device ID (under NTamd64.6.3 if you are running 8.1) but you should also follow through to the relevant section and change all the reg keys and settings to match an existing inf that has been setup for your chip/notebook.

    e.g. If this was your inf and device ID line from a working driver:

    %NVIDIA_DEV.13D7.22DA.1043% = Section???, PCI\VEN_10DE&DEV_13D7&SUBSYS_75001558

    Search for and copy everything under [Section???], plus two of the lines will reference other parts of the inf that you will also have to copy:

    AddReg = nv_commonDisplayModes_addreg__??
    AddReg = nv_miscBase_addreg__??

    Search for and copy everything under [nv_commonDisplayModes_addreg__??] and [nv_miscBase_addreg__??].

    Now open the inf you want to modify. Change one of the existing 970M device ID entries to your ID and follow the sections as above and paste in the relevant settings from your working driver inf.

    metacarpus I'm going to send you a new inf for 346.87 as I changed Windows 8 before.

    One last try :)

    EDIT: Ok inf attached for 346.87.

    EDIT2: New inf attached for 346.87 (For anyone else testing this has only been modified to work with a Clevo 8GB MXM 980M and Windows 8.1).
     

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    Last edited: Feb 7, 2015
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  14. Cloudfire

    Cloudfire (Really odd person)

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    You can change the INF files all you want but the problem is with the display.
    The reason why GT72 and G751 get it to work is because they use the same IPS display, LGD046C.

    So far we have confirmed that
    Alienware 18 - Not working
    GT72 TN display - Not working
    GT72 IPS display - Working
    G751 - Working
    P750ZM - Not working
    NP9377SM-A - Not working
     
  15. TBoneSan

    TBoneSan Laptop Fiend

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    Worth a watch.

     
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  16. Cloudfire

    Cloudfire (Really odd person)

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    Do you have Dell?
    Go to nvdmi.inf.
    Replace all 780M with 970M
    Replace all 119F with 13D8
    Exit and save.
    Disable Driver signing enforcement if you have Win 8
    Run the exe in the folder you unpacked and it will install

    Pretty funny that the gamenab dude claimed he have coded and worked on this project for a long time, to enable G-sync for us mobile users. When it was infact a leaked driver from Nvidia to OEMs that enabled support for it. Not his work :p
     
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  17. TBoneSan

    TBoneSan Laptop Fiend

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    Yep... He certaily had his 15 minutes of fame...

    I'm glad he shared it at least. Nvidia have been caught with their pants down

    What's the bet Nvidia could probably do this on just about any monitor to a degree. They have totally failed trying to monetize it
     
  18. sk3tch

    sk3tch Notebook Deity

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    It's worth reading the article on PCPer to get perspective on that: http://www.pcper.com/reviews/Graphics-Cards/Mobile-G-Sync-Confirmed-and-Tested-Leaked-Alpha-Driver.

    That's one reason why only a single display works thus far and how only laptops work. It's not as simple as any display, by any means.
     
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  19. iaTa

    iaTa Do Not Feed

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    And you know that for a fact? I think we need to test it with a P750 and an LG 1080p IPS before you can say that.
     
  20. jaybee83

    jaybee83 Biotech-Doc

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    testing is good and fun, so dont hold back guys ;)
     
  21. iaTa

    iaTa Do Not Feed

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    Well bang goes your theory Cloud.

    Looks like Gamernab may not be talking BS about his modifications.

    [​IMG]
     
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  22. octiceps

    octiceps Nimrod

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    And on a Fermi GPU too. Interesting...
     
  23. jaybee83

    jaybee83 Biotech-Doc

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    funny, first time i saw nvidia's official comment on that@gsync on laptops coming out soon&leaked driver, i thought THAT was the BS :D staying tuned for more info :)
     
  24. James D

    James D Notebook Prophet

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    He talks too much. I wonder when he gets time to write a code if he posts Goodbyes, so much not useful info for average users and answers comments?
    Even if he is truly capable of doing Gsync support he still wanted to be loud and take time and... who knows what is next in his plans.

    P.S. I don't like his info about "Gimped 980". He claims that its vRAM suffers too but nobody found that. You may laugh but this is the shadiest moment to me. Not even that it was clear since the GAME OVER LOGO where story was heading to (no "mod driver" published in closest future).
     
    Last edited: Feb 2, 2015
  25. heibk201

    heibk201 Notebook Deity

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    hmm this is interesting. I thought the way this driver can work is that nvidia add support for that specific TCON on that LG panel, but apparently not huh?

    btw if anyone has an aorus x7 pro, please also try this out because it has the same IPS panel.
     
  26. Cloudfire

    Cloudfire (Really odd person)

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    One thing is getting the software to add that feature in the settings which can be done by tricking the software to think its reckognizing a compatible display, another is getting it to actually work on a non eDP display.
    Freesync only works on displays with DisplayPort and I don`t think G-Sync will either.
     
  27. heibk201

    heibk201 Notebook Deity

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    but that brings the question back to its original spot. does it work because nvidia designed the driver around a specific panel or should it work because it actually works for all eDP displays without customized settings?
     
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  28. Cloudfire

    Cloudfire (Really odd person)

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    The samsung display he posted the screenshot from doesnt have eDP so I`m thinking he changed something in a file to trick the software thinking it does have eDP. Hence why it shows G-sync in the settings.

    That he haven`t posted any proof except the pendulum video from Asus G751 (which have LG display with eDP) and not the Samsung display doesnt actually help his case either. My Alienware with Samsung display didnt support G-sync. I tried his drivers.

    We shall see.
     
  29. James D

    James D Notebook Prophet

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    Neither of his "proofs" proved that it is possible to do on DP Monitors or even any notebook without LG panel. This is one.
    There is no hard evidence that he is lying about his ability to mod drivers. This is two.
    The hardest suspicious I get is from his post about 980 being gimped with vRAM. He (as gaming technique reviewer and designer of variable Sync Algorithm) has to be skilled enough to know that it's due to allocated memory by Windows is interfering results. This is three.
    And finally! Instead of giving the driver he just posts some not useful info for monitor owners. He hasn't given modded driver since last week and this attentions were easily seen from the beginning. This is four.

    Now being more precise about Samsung and that "number one". There are 2 monitors in Device Manager. MonInfo where you see all monitors is hied. Why didn't he show us the Nvidia Control Panel Menu where you can see all monitors connected and where is GSYNC SUPPORTED text under the exact monitor?

    Conclusions: I don't buy it until I see it (proved) and I highly suggest to STOP DISCUSSING Gamenab's posts and articles for now. Yet I don't dare to call him a scam or lier. I don't do this without hard evidence... in general most of the time + he deserved that by giving 346.87 driver's unlocked file.

    P.S. I wish one reviewer on overclockers who has Freesync Panel tried those drivers... but he was frightened by one member who does radical conclusions based on not solid facts. Darn, we would already have another important data to analyze. :vbmad:.
     
    Last edited: Feb 2, 2015
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  30. heibk201

    heibk201 Notebook Deity

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    that's what I thought, there's too much to suggest that the driver only works on that single LG panel and whatever he showed us is too ambiguous to be considered real

    I don't believe Nvidia has a way to generalize the modification for all TCONs on eDP panels. there's a reason they only gave it to asus and no one else
     
  31. sk3tch

    sk3tch Notebook Deity

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  32. TBoneSan

    TBoneSan Laptop Fiend

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    Hehehe I new this would happen if the drivers were in anyway legit. Got my copy for the archives.
     
  33. korovjev

    korovjev Newbie

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    Hi everybody..
    I tried modded driver (with G-sync) from GAMENAB (I have MSI GT72 with 980M and IPS panel) and it works !! Games are smooth and it is really noticeable difference.. So +1 for this guy.. By the way Nvidia force Gamenab to stop his work.. This is really sad, because it works for me..
     
  34. Cloudfire

    Cloudfire (Really odd person)

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    Who said it was Nvidia?
    PCPer didnt put him in a very good light which may have been enough to just quit the show

    He did however tell people about the leaked drivers and G-sync, PCPer didnt although they knew about it, so he should have some credit atleast
     
  35. korovjev

    korovjev Newbie

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    Those are his own words, he was asked to erase everything and dealt with it. That's all I know..
     
  36. octiceps

    octiceps Nimrod

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    Only Nvidia has the legal authority to send him a cease & desist and scare him enough to take down his own website.
     
  37. HTWingNut

    HTWingNut Potato

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    Yep. nVidia has more egg on their face. It's getting quite messy in here now... needs bacon too. :p

    That driver mod was a serious jab at nVidia's marketing future. I bet they were working on an adapter for laptops so that they could charge an extra $100-150 on a laptop to make it "G-sync compatible" as well. Money that clearly at this point consumers would spend for no good reason.

    Please AMD get back in the GPU game and quickly. These kinds of things will only get worse as time goes on and nVidia has no competition. Even with Freesync, until GPU's can even remotely compare with nVidia it won't make a lick of difference.
     
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  38. Cloudfire

    Cloudfire (Really odd person)

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    Although G-sync may work without the module, it is still needed to get the smoothest experience when you experience low FPS.

    Without G-sync module
    [​IMG]

    With G-sync module
    [​IMG]

    The whole point with the G-sync module is to sync FPS with the refresh rate of the monitor. This is the job of the Altera FPGA sitting on the PCB. It isnt just sitting there doing nothing like some people have suggested.
    OEMs got the leaked G-sync driver to test out G-sync. Its an Alpha driver so we dont know if a solution without the module is good enough. They may find its to inconsistent and decide to incorporate the module in their notebook. The driver was just for testing purposes, not a final product
     
  39. James D

    James D Notebook Prophet

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    The point of GSYNC is to transfer refreshing frames from GPU to monitor unchanged.
    And the point of G-Module is to make this always fixed no matter what fps is.

    And as for "alpha driver". I don't know where is that driver. Nobody knows except Nvidia.
     
  40. Cloudfire

    Cloudfire (Really odd person)

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    Nothing is fixed with G-sync. The GPU can draw frames at different times, which is the reason why the display and the GPU is not in sync. The module tries makes them in sync.
     
  41. jaybee83

    jaybee83 Biotech-Doc

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    i think thats what james meant by "fixed" :) @synchronizing gpu with display frames

    edit: oh nice, post #5000! w00t! :D
     
    Last edited: Feb 6, 2015
  42. James D

    James D Notebook Prophet

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    When framerate is too low or frame is drawing too long (hick ups) GSYNC module refreshes the old one.
    But I believe this is possible to do on a software level or hardware level on the side of GPU. But they wouldn't sell expensive modules then.
     
  43. Cloudfire

    Cloudfire (Really odd person)

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    I`m so freaking jealous :/

     
  44. jaybee83

    jaybee83 Biotech-Doc

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    ah well, there are more important things in a hardware-freak's life than gsync support :)
     
  45. iaTa

    iaTa Do Not Feed

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    I don't know jb, G-sync makes a pretty huge difference IMO.
     
  46. jaybee83

    jaybee83 Biotech-Doc

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    well, lets put it like this: what i dont know / havent experienced yet, i cant very well miss :D
     
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  47. Cloudfire

    Cloudfire (Really odd person)

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    lol I agree with both of you.
    I want to try G-sync though. And I`ve used 120Hz before. I miss that :/
     
  48. iaTa

    iaTa Do Not Feed

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    Interesting, Gamenab is back.

    http://gamenab.net/
     
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  49. octiceps

    octiceps Nimrod

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  50. BigDRim

    BigDRim Notebook Consultant

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    Don't you think he could help us for overclocking?
     
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