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Why does LCD Flat panel screen have rolling lines?

By Darmstadtrunner ·
My HANNS-G 19" LCD monitor ahs faint lines rolling from bottom to top of the screen. Most of the time it is not too distracting, but sometimes is. What can I do to fix this, if it's possible to do so?

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Check your refresh rate ...

by OldER Mycroft In reply to Why does LCD Flat panel s ...

It ought to be set for 60Hz but some graphics cards can take it upon themselves to push the refresh rate up.

On even 61Hz my 22" Hanns-G can exhibit slight deformation of screen image.

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Refresh Rate

by Darmstadtrunner In reply to Check your refresh rate . ...

I checked it and it's on 60Hz so maybe the monitor is just getting on in age, like me. Thanks

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Anything change before the lines showed up?

by seanferd In reply to Refresh Rate

Could possibly be subtle electrical interference in the mains, like 60 cycle hum, or a ground loop.

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Or even

by IC-IT In reply to Refresh Rate

another magnetic field too close to the monitor; florescent light, fan, heater, etc. even an older florescent light overhead that syncs up with the monitor refresh rate (a different type of tube would work).

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