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Laptop external monitor poor display quality

Toshiba labtop / Portege m800
May 27, 2010 at 10:08:02
Specs: Windows XP
I'm using an old LG Flatron L1510S as external monitor for Toshiba Portege M800 laptop, with laptop's screen turned off. The problem is that flickering horizontal lines appear on the monitor (they are best visible against white background). I'm working in 1024x768 resolution with 70 Hz screen frequency, and changing these setings only makes the effect worse.

Could anyone offer any advice? Thanks in advance.

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May 27, 2010 at 17:53:15
change the colour quality in properties->settings to 32-bit

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May 28, 2010 at 00:01:13
Thanks, but this doesn't help.

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May 28, 2010 at 05:47:54
try updating or changing the video driver

change the vga cable (if possible)

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May 29, 2010 at 00:19:03
Thanks, I'll try this.

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