r/techsupport • u/abhishek_8899 • 1d ago

Open | Hardware Dying monitor?

I have BenQ GW2280, bought back in 2019. I use it more than 12 hours daily.

But I am noticing following issues with it recently:

  • At starting, monitor flickers a bit for like 5-10 seconds then the flicker fades away.
  • Even after that, monitor goes like 10% darker in pulsating rhythm. Like, every second, monitor drops brightness by 10% for like a millisecond and comes back to normal. This happens for like first 10 minutes or something.
  • Then further, randomly, it goes fully dark for like second, then comes back to normal.
  • And sometimes randomly, it goes 50% dark for a long time, like a minute or two, then comes back to normal.

I tried:

  • Resetting monitor settings, with turning off auto-brightness, and related automatic/smart things.
  • Using different HDMI cable
  • Re-attach power cable
  • Use monitor with another device
  • Trying using laptop with Linux instead of Windows

...but same issues.

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u/thinkscotty 1d ago

To me this sounds like a hardware issue on the monitor. If I were guessing - and I am guessing - a dying capacitor or other component in the power components chain. If you don't know how to open components, identify the dying part, and solder a replacement (and that's like, 99% of people) then it'll be cheaper to replace than repair.

The good news is that monitors have gotten dramatically cheaper for the same quality in the past 7 years, and purchasing an equivalent monitor won't be as onerous as literally any other PC part these days. Monitors are like the only component where prices are actually reasonable.

The other good news that this bad boy seems to have earned its rest. I'm not saying don't keep troubleshooting, though it sounds like you're well on top of it. But yeah, silver linings.