Portege M800 - horizontal lines on external monitor

I just bought a number of new M800 (model number - PPM81A-06L01J) and all have second screens connected.

On all secondary monitors, there are wavy horizontal lines. Secondary monitors are all of different sizes and different brand and model. They are all also on their native resolution and refresh rate. I also got the latest video drivers installed. Any body have an idea as to why this is and how to fix it?

See you soon

Brad

Hello!

I n t have a Portege M800, but on my Portege M700 I had some problems with the external monitor connected too.
Here's the story about this:

I connected the new external monitor for Portege M700 directly with an old VGA cable. Usually it t wasn't a problem for me but I was not satisfied with the quality of the image on the external monitor (a bit blurry) so I started to update the display driver and the BIOS of my Portege M700 but without success.
Anyway, I tried a bit with Google and here in the forum and I decided to buy a new high-quality VGA cable. I exchanged the cable and what happens? Perfect image quality!

As you can see, you should always use high quality new cables. Also, make sure that you use the highest screen resolution of the external display (native screen resolution) and set the refresh rate of the screen at 60 Hz.

Good bye

Tags: Toshiba

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