External monitor flickering

jessieh04 · May 28, 2009

I hooked a 22inch monitor to my macbook pro via the mini display port/VGA and a VGA to VGA to the monitor. It keeps flickering. I'll be using it for 5 mins and the external monitor will shut off and 5 seconds later turn back on. It will do this every 5 mins. I tried my sisters PC on it and it does not flicker. But with that, she bypasses the Mini display adapter and goes only VGA to VGA. Is this an issue I can simply change a setting to? Does anyone else have these problems?

I dont know if this is helpful, but the monitor is a V7 R22W02-R and these are the specs I could find:

Screen Size: 22 in
Included Interfaces: Audio - Line In, Video - 15 pin High-Density D-shell (VGA), Video - 24 pin DVI-D
Aspect Ratio: 16:10
Resolution: 1680 x 1050
Response Time: 5 ms
Contrast Ratio: 700:1

Display Panel

Contrast Ratio: 700:1
Brightness: 280 nits
Horizontal Viewing Angle: 170 degrees
Vertical Viewing Angle: 160 degrees
Display Refresh Rate: 60 Hz
Response Time: 5 ms
Viewable Size: 22 in
Aspect Ratio: 16:10
Max Resolution: 1680 x 1050
Diagonal Size: 22 in

Interface

Interface Connection: Audio - Line In, Video - 15 pin High-Density D-shell (VGA), Video - 24 pin DVI-D

chscag · May 29, 2009

Flickering could be due to a poor connection from the mini display port adapter to the VGA cable. Make sure the mini display port adapter is securely seated on both ends and that the VGA cable is likewise. If necessary, swap out the mini display port adapter for another.

Regards.

Aptmunich · May 29, 2009

I had a miniVGA adapter that used to do that... so I'd also try swapping out the adapter.

If it's mini Displayport, you've probably not had it that long, so perhaps try taking it to an Apple store.

External monitor flickering

jessieh04

chscag

Well-known member

Aptmunich

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