When i connect my m570RU to an external monitor the monitor has static (like horizontal lines shaking). But when i unplug the notebook from the AC power outlet the static disapears. This only happens when the note book is connected to the power adapter.
could this be voltage issues?
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Mind you, I don't know nothin', so I may just be gassing off, but that sounds more like a bad ground or intermittent short from the ac adapter.
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Your AC adapter is probably not working properly. It's most likely a problem with the grounding.
First I'd recommend you to try to connect the AC adapter in another outlet. Preferrably an outlet that is separated from the outlet you use to power the screen.
If you still get the same issue, its most likely the AC adapter. If not, you probably have a grounding fault in your house/appartment... -
One solution might be to see if you can simply swap out/RMA the adapter you have and get a new one. A quicker alternative that you could use to test whether your current adapter is bad would be to get a so-called universal adapter that has the same voltage, current, and power ratings as your current adapter and use it to see if the problems persist with a different adapter (handle it carefully and, if you don't want to keep, return it).
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These guys have a ton of great adapters.
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The powerbrick is probably the culprit if it only does it on AC mode. That or your outlet system is not grounded properly. Might want to consider getting a power surge adapter to clear some problems,and you should also contact your reseller,they should provide you with a different adapter in case yours stopped working as it was designed to.
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eleron911 makes a good point - are you plugging the ac adapter into a grounded socket (i.e., three-prongs)? If you are, any chances that the wiring to the socket is bad (e.g., it's in a really old house)?
External LCD static when conected to AC power adapter.
Discussion in 'Sager and Clevo' started by cotolay, Mar 9, 2008.