The Acer 1912 Horizontal Sync seems to be a common problem.
On the Intel 910GL it was running 1280x1024 at 60Hz just fine and then one day it started having problems so I switched to
1280x1024 at 75Hz and is ok again. I have a couple other video cards an ATI and a NVIDEA I'm going to test it on and I'll post the results after I do. Oh yeah and of course its XP Pro running on a ASUS P5GL-MX.
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b24teddy, This seems to be a power supply problem. Some can be repaired (DIY) for $20 or less. $35 to $70 if contracting out the work. More if replacement circuit board is needed. From your problem description I get the feeling that your monitor "works" and will display an image or data on the screen. Your description of your monitor symptom is what is known as "black" screen or "black&blank" screen. If you know the pc has finished booting and is displaying the WIN-desktop, point a bright flashlight 1 inch from the black lcd panel and tell me if you see a faint image of your desktop. If nothing is seen=full shutdown of SMPS power supply. If icons are seen=partial shutdown only! If you read some of my older responses to owners of black screen lcd's in my FIXYA profile (pages 10 up) you will understand the problem and how some owners who are handy with a soldering pencil (iron) restore their units back to life. Yes, your's has a good chance of being fixed. Just spend an hour reading in my fixya file and then decide what you will do.
make sure your cables are tight. make sure you have the correct input selected on your monitor. swap your monitor on the pc with one from a freind that works. this rules out your graphics card and the pc. if all of these are correct you probably have a bad video input on the monitor. you may need it repaired.
This is the resolution problem. Pls reduce the resolution .
Right click any where on the desktop and click on properties there.
a popup appears just choose Setting there . there you will find the option of Screen Resolution .Just Slide the pointer toward less litlle till your problem resolve.
When your computer is starting up, hit F8 and you'll see the safe mode, safe mode with networking, etc. screen...You should see a choice that says "enable vga mode". Select that and windows will start and the os will select a screen resolution for you. After that, everything will work fine...I hope.
OK try booting up in "Safe Mode" Press F8 just after Turn on, when and if ya boot into safe mode then adjust your Video settings to say 1024x768x32bit and then reboot, if all good then when you are at the desktop, then adjust the settings to whatever you require... maybe 1280x1024x32bit.. Ya all good.
If this doesn't work.. try the Monitor on another PC.. see if it works... if it does.. then maybe ya Video card is going/gone "Toes up" if not, then ya got a fault in your monitor, usually some sort of Power Supply problem or the like.