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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Re: output flicks very heavily
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?
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The possible problem of your monitor is may be cold solder, bloated elec. capacitor or defective lcd panel. If you found that bloated capacitor replace it and resolder all pins of inverter area. Defective lcd panel could cause of display flicks then immediately off.
If the LCD screen flicks on and off and you can see a dim image on the screen when you view at a sharp angle, then most likely you have a faulty inverter or a faulty CCFL lamp.
Check out LCD Parts for service, parts, DIY info. Use this Link :- www.lcdparts.net
If you mean the on light goes dim, then I've had the same problem - unplug both computer and monitor - hold power button for monitor for 15-30 seconds...then power it back on and then power on the computer. Seems from other sites there is a power issue with the monitor - this worked for me.
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.
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.