Monitor won't turn on -- flashes on then off again
For the last few days, my monitor has been misbehaving. When it goes into standby mode (after long period of inactivity), or after powering down, it has a very hard time waking up. Pressing the power button will cause it to flash on once (for about a quarter second -- frames do update during this time), and then off again. After flashing off, the power light remains on, but the screen is completely blank. IIn the past, it's done this and I've had to press it a couple times for it to snap out of this mode, but now it seems to be permanent. I've pressed it hundreds of times (on then off then on...) with no luck.
It's definitely a monitor problem, as the problem persists when plugged into other computers. I can't see any color that would suggest just a lamp problem (but couldn't see real well with the flashlight). I tried adjusting the resolution within windows, with no luck.
Any ideas? I'm close to resorting to the dropkick method of repair.
I have the same problem, i have extreme trouble getting my screen to come back on after it goes to sleep
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I have the same problem with a 19" unit it just started the last month. If I unplug the power cord for 10 seconds then plug it in I can use it the rest of the day until i shut the system down again. I disabled "turn monitor off" in power settings so it will stay on. I too have tried it on different computers,it is in the monitor. No ideas, I am pricing out a 24" feom a different manufacturer.
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If it EVER works, then the problem is not a failed part, but a weak part. The most likely component type to give you such problems are capacitors. But very few repair techs know how to find such problems, and even fewer have the equipment needed to find the bad one(s) in-circuit. The failure mode is high ESR (ESR means Equivalent Series Resistance). The lower the ESR, the better. Capacitors with high ESR cannot stabilize circuits which demand high pulse currents, such as in switch mode power supplies.
I suspect the power supply for the monitor. Try a power supply from a working monitor. If you have a used computer store nearby, take your power supply to them and try it on another monitor.
There is no need to turn off a monitor using its power switch. Monitors automatically go into standby mode when they are not receiving a signal. In standby mode they use less than one cent of electricity per day. If saving electricity is your goal, raise the temperature in your home by a degree and run the air conditioning less.
Look the problem it may not your monitor it's your windows XP.
Let me guess you have a VGA/Svideo card. From prior experience I can tell you that dual output Nvidia cards will default to Svideo first, and then "adjust" your windows settings to do so every time even if a VGA monitor is re-connected (HIGHLY ANNOYING).
So if the last thing you see before nothing is the Windows XP boot screen, here's how to fix it.
Boot to safe mode
uninstall your video driver, reboot then reinstall.
You can substitute a system restore for uninstalling your drivers if you can remember when the monitor was last working.
This really really pissed me off when it happened to me.