• Abstract

  • nVidia G-SYNC = Flicker Free (even on laptops)

As some of us may know. Nvidia G-SYNC syncs the frame rate with the refresh rate of the monitor, also allowing high refresh rate operation without tearing (i.e games, 3D video content) However a little known fact about these panel's is that the G-SYNC board also controls the DC backlighting, meaning in all the ones that have been tested it's just a flatline on the oscilloscope reading.

But JTL, why does this matter. Can't I just buy a Dell/BenQ monitor and be happy?

Well. It doesn't, technically it does. Ahhhh. However lately G-Sync laptops have been coming "on the scene" and those too are flicker free, which is good news.

See this review for example. Well I don't recommend ASUS products to anyone, due to poor quality control/RMA support/overheating this may pave a resonance of flicker-free laptops 😃

Now for Sager, et al to catch up. Only a matter of time, as they say.

http://laptopmedia.com/review/asus-rog-g751jy-g-sync-review-the-g-sync-is-the-finishing-touch-thats-been-missing-on-this-gaming-beast/#pulse-width-modulation-pwm-screen-flickering

JTL changed the title to nVidia G-SYNC = Flicker Free (even on laptops) .

Intriguing. I haven't heard of gsync yet.. Really, really glad that new hardware coming out is using a different / better tech for backlights.

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    Slacor Mainly for gamers using those high refresh rate/3D vision monitors. Like I said having the flickering PWM can interfere with the motion, making it like "juddery" I've heard. Also has no PWM in standard 2D mode, of course.

      a month later

      And the G-SYNC laptops are upon us!

      http://pro-star.com/index.php?r=product/index&filter=7

      Pro-Star is a custom laptop builder with a great rep on forums and such. All operations are handled in California and their sales support was great to talk to. Keep in mind that these are gaming laptops so they have the trade offs you would make (heavy, lesser battery life, etc.) But feel free to talk to them about anything via their sales department. They were a great help to me.

      What's funny is they had no flicker free screens available (presumably for a long time) then they got them in the from of a G-SYNC panel a month after I bought this Macbook Pro. 😛 They mentioned to me that no one has mentioned PWM flicker to them although they have heard of it. I'd say they went above and beyond your typical laptop sales-rep by testing various displays for flicker, sending me PDF's of the datasheets for the panels, etc.

      10/10 would recommend. Not sponsored by them obviously.

        JTL Anyway you could display the pdfs here?
        Definitely curious!

          When I have time I will find them and you can host them (as they are hosted on often unreliable Russian/Chinese sites)

          I got the ditherig app to run on my Dell E7450 but I can't tell a difference with any of the settings. I don't think it works. The snow effect is still apparent.

          7 days later
          8 years later

          Ho, guys for your experience, Is a g-sync connection (dp) Better than a no g-sync connection (HDMI)?

          I use my laptop with TypeC to dp and in Nvidia panel I see Gsync mode.

          Using HDMI cable not.

          So the question is what connection is better?

          G-sync or not G-sync?

          Thx a lot

          LedEyeStrain Telegram Community Founder

          dev