My EW2440L has developed coil whine.

  • JTL replied to this.

    degen Unfortunate. Coil whine is annoying

      2 years later

      i´ve ordered a new EW2775ZH (270HVN02.3) because my second Benq GW2760S (AUOM270HVN02.0) died a month ago >To open Service Mode: Press Power on + Menu

      unfortunalty it hasnt the same quality as my old one, getting eyestrain and fogginess after some minutes.
      I am on win10 and i can see some flashing on the screen on static images like the windows desktop or the chrome browser. focusing is very difficult. this is very visible after opening a new window. it took me a while to focus the new content.

      next i will order a newer benq model from 2018 (BenQ EW277HDR).
      it has a newer panel revision AUOM270HVN02.6

      • KM replied to this.
      • KM likes this.

        hector I can't use my EW2775ZH either. As you describe, strain kicks in after some minutes, and even headaches later on. This is independent of the OS or connected device. I haven't seen any flashing though.

          good to know that i am not the only one.
          what about the newer revision with "hdr" EW277HDR?
          it uses a newer panel. have you tried this one too?

          • KM replied to this.

            hector No, I still have the old version.

              a year later

              KM

              Now I bought an EW2775ZH. It has a good picture with much better uniformity of light, but it's still too bright for me at brightness 0, contrast 0, and on top of that in "dark room mode".
              It turned out the newer "Blue Light Plus" modes didn't help at all. The OSD's white doesn't change when selecting such a mode, which tells me the modes don't change the backlight diodes, like some reviews suggested.

              Did you try adjusting down the RGB channels? The defaults in my HP have all the channels at 255. Taking those down will drastically lower the minimum brightness.

              • KM replied to this.

                  K-Moss I think so. Plus I think the pre-set modes do exactly that, just in a pre-configured way.

                      4 days later

                      degen Have you tried a low haze or glossy IPS display?

                        degen "I can't find the EW2740L (measured at 11 cd/m² at 0% brightness)"

                        Do you also take down the RGB channels from the default 255,255,255, and reduce the contrast level? That will allow you to get a much darker screen at 0 brightness, probably too dark even on units known for being too bright.

                        I just read this: "and I kept the OSD contrast at 10."

                        So you've done that already, but what about taking down the RGB channels? That will make a big difference.

                          KM About the preset modes doing that, they don't on my two HP units.

                            dev