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Asus VH236H monitor - flickering horizontal lines.

Discussion in 'Hardware' started by CrazyRussian, Oct 5, 2010.

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  1. CrazyRussian

    CrazyRussian Thread Starter

    Aug 20, 2005
    Hi all,

    I just got a brand new Asus VH236H monitor from Newegg. Pulled it out of the box, set it up on my desk, plugged it in, connected it to my laptop (Acer Aspire 6920), and all was good. That was about 6 hours ago.

    Now, I'm seeing horizontal flickering lines all over the screen. Some are thin lines, others are thick bands. They're constantly moving up and down the whole display. Did some research, and seems like when this happens, it happens on all inputs. But the funny thing is, for me the flickering lines are only visible when in VGA mode. When I switch to HDMI (my Playstation 3), all is well. No lines anywhere in sight. Unfortunately, I don't have any DVI devices to also check that input.

    I've checked all the resolution/refresh rate options given to me, and they're set to the recommended Asus values (1920x1080, 60Hz).

    Can anyone tell me if this is a defect with the monitor, or if I need to find some advanced setting somewhere, and change that.



    EDIT: A friend of mine told me to unplug my laptop from its power-charger. And it worked. No more scrolling lines.
    So what do I do now? I can't run my laptop without charging it, but while its charging, the monitor picks up interference from the power cables.

    EDIT2: Just tried running my laptops power cable to a different outlet, and that didn't help.

    EDIT3: Completely untangled laptop power cable, separated it from all other cables, and threw laptop power block as far as it can go, and I moved the laptop 1 inch away from the monitor. That fixed the problem about 95%. The lines are still there, but very very faint. At this point I can't think of any other way to fix this. Must be a problem with my laptop hardware that is causing the interference.

    Also, just in case, I checked my old monitor (Samsung SyncMaster 930b) just to make sure it isn't just my new monitor, and sure enough the lines were there, and gone when I unplugged my laptop. I just never noticed because the overall colors were much darker than my new Asus.
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