Hi --,

  1. Yes it is a true 8 bit
  2. Our Flicker free tech nearly eliminates the flicker at all brightness levels with the LED backlighting

Regards

Hello,

I'm considering purchasing the ViewSonic VA2455sm and I need to verify two things:

  1. SuperClear Pro technology provides true 8-bit color performance

Because it uses 8-bit, that means there is no dithering (FRC) occurring correct?
6-bit often using FRC dithering to simulate 8-bit.

  1. Flicker-Free

Is there any brightness range that would cause PWM to occur? Or is it PWM-free through the entire range (0-100)?

Thank you!

Slacor But I also remember using the my old tube monitor and never dealing with any of this.

CRT's never used dithering and some of them had very high refresh rates. I had a CRT long ago that could do more than 120hz and it never gave me problems even after this issue started nearly 5 years ago.

It was an Viewsonic Optiquest V95 and cost more than $3000 over 15 years ago and could do nearly 2k resolution.

    7 days later

    Ok, got it. We'll see if "True 8-bit" lives up to it's name and makes a difference over 6-bit and FRC.

    Also, no PWM throughout the entire range of brightness

    (Just noticed it was on Auto - Enabled Dithering for the ViewSonic - disabled now)

    • JTL replied to this.

      After using this monitor for about half a week, I have to say this is much better then my Dell U2414H.
      It's semi-old tech (DVI and VGA only!) and has some ghosting, but I'm becoming nearly symptom free which is phenomenal.
      We'll see how it progresses.

        Slacor Thanks for the update. I can't find any for sale on eBay or elsewhere. Mind if I ask where you purchased it and if there are any more available? Considering trying it.

          I got it here

          There was a refurbished one I got very cheaply (making it easier to trial).
          There's a "newer model" that is flicker free but doesn't specify whether 8 bit or 6 bit.

          If you want to try the new one, I would suggest contacting them and asking them.

          I'm using this monitor along with a nvidia card on linux, all of which has allowed me eliminated the usage of dithering. So it was not this monitor alone that "made everything better" is regards to dithering.

            Slacor Appreciate it. I just ordered a BenQ 8 bit / Flicker free panel suggested by JTL. If I don't have any luck I'm bookmarking this ViewSonic and will give it a run. When using a monitor such as this in combination with an Nvidia GPU, is there any setting that needs to be changed in the Nvidia control panel, or should as-is be fine?

                Slacor Thanks again. Just read that whole page. If I'm not mistaken, Windows + Nvidia + PWM free 8 Bit monitor shouldn't require any setting changes in the registry or Nvidia control panel, right? Unless we're to use the dithering.exe file in conjunction with the above formula?

                • JTL and KM replied to this.

                    ThackeryBinks The dithering exe for for Intel cards. And regardless I have ideas of something "more permanent" than an EXE for Intel Cards to control dithering/PWM

                      Slacor If you want to try the new one, I would suggest contacting them and asking them.

                      For fun I wrote ViewSonic an email. Looks like an interesting monitor. Might get one as secondary after I purchase a 2.5k or 4k main monitor.

                      • JTL replied to this.

                          JTL

                          So the new model Slacor was talking about uses 6bit+FRC. Will attach email and datasheet later.

                          Hi JTL,

                          I grab this from the data sheet - Colors 16.7M (6bit + Hi-FRC)

                          I have attached it

                          Let me know if you have any questions.

                          Regards,

                          Jimmy Yao
                          Inside Sales/Sales Support
                          ViewSonic Corp.


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                          Hello

                          I'm just wondering if the ViewSonic VA2465smh uses a 6-bit or 8-bit color depth, and if it uses dithering/FRC technology for 8-bit.

                          Thanks

                          Datasheet: https://cdn.jtl.pw/DS_M_VA2465Smh_2015-02_EN.PDF (my site)

                                3 months later

                                Slacor I took the server offline as I'm moving servers.

                                I still have the datasheet though.

                                I could bring it back up long enough for you to download it and host on ledstrain.org

                                  4 years later

                                  Slacor "After using this monitor for about half a week, I have to say this is much better then my Dell U2414H. It's semi-old tech (DVI and VGA only!) and has some ghosting, but I'm becoming nearly symptom free which is phenomenal."

                                  Any update?

                                  Also, is the coating less aggressive than a typical IPS monitor of the 2016 era? I'm wondering what about this model was benefiting you so much versus the Dell. Some are skeptical VA makes a difference and instead say IPS screens historically had fuzzy, overly aggressive anti-glare coatings. Therefore they lend the impression a low haze IPS should be every bit as comfortable as a decent VA.

                                    dev