Question about HP f1905 19" Flat Panel LCD Monitor

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Output flicks very heavily

Dear, my lcd f1905 display is flicking very heavily even in bios post messages during boot. all the screen disply is scrambles and shows total garbage. few times in past, the problem automatically resolved after leaving the monitor ON for 15 to 45 minutes. but now i am facing this since 3 days. no megnatic fields and other display disturbing devices are near my PC. please advice.

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Check the speaker. There is a big magnetic field for magnet in the speaker case.

Posted on Feb 29, 2008

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Speak to HP/Compaq they will be able to advise. They are usually pretty good with hardware faults. You probably have a three year warranty on it so take advantage. Your mobile phone is not by your pc or any other wireless phone?

Posted on Feb 28, 2008

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1 Answer

Mag monitor doesn't display bios post


I have no experience with the DVI links because such technology is still unavailable here in Argentina. We have DVI video cards but finding a suitable DVI monitor is another (long) story.
I think that your card (that has 2 DVI ports) is initializing one port first (the primary one) and then, when windows starts, it initializes the other and outputs video from both ports.
Try connecting the monitor in the other DVI port.
If your card has a VGA output, the VGA gets initialized first.

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Mag monitor doesn't display bios post


The BIOS is sending the display information to the monitor but, when you turn your PC on, the LCD will be sleeping and it will take 1~2 seconds to wake up when receiving the display signal. The monitor is working and even if the BIOS messages aren't displayed, you can still press the correct keystrokes to get to the SETUP screen or press PAUSE in the keyboard to see what's going on in the POST.
If your LCD has a bicolor LED indicating the status (Standby/On) keep looking at it, when the LCD gets the video data, the LED turns instantly from amber to Green or blue even if the screen is still black. This way you can have an idea when the LCD gets the initial video signal and to press the keys accordingly.
Your PC will also delay the video output from the secondary video card because it's detected after the onboard card.

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see this post
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