Acer al1922 monitor no signal:

Not the monitor. check that both end of the cable are tight. The most likely problem is the video card in the computer it it works okay on the XP computer.

Did you test the monitor on another computer to rule out a video card problem.

This means that your monitor is not receiving a signal from your computer. The easiest way to fix this is to plug the monitor into the computer. I hope this helps and have a nice day!

You might have one of several problems.

Your monitor might require a driver for your computer/graphics card in order to show up.
Your monitor's input might be slightly damaged.
Or your graphics card might not have the proper drivers in order to display on that kind of monitor.

I would go online and make sure your drivers are up to date for your graphics card first, then inspect your monitor to make sure no pins from the cable have broken into the input, and then make sure that your monitor is compatible with/without drivers to your graphics card.

Check the volume + button,it could be wearing out or maybe something sticky like soda has got on it and its sticking-good luck

they all come with two cables. blue being vga, white being dvi cable. you only need to plug the blue into both ends (computer and into the monitor) and turn on. If it is still not working how many video cards are there on the computer? Do you have it plugged into the right spot and is it tight on both ends?

This Problem is Acer(s) Monitors. Though it is a nuisance one fix That has work for many is the Unplugging after it goes back to Good (viewable) screen.
I have hooked mine up to an inexpensive Power strip to make it easier for me and just turn off at time indicated above and Viola Simple is as Simple does :)

I had bad cap two rated 220 mf at 25 volts in a 1922 acer any doomed capacitors need to be replaced with like value caps. that is a start

Have you used the Fn button on your laptop and changed the video display Icon on the Blue Function keys. You need to change the display wait a few seconds for it to take affect. There are several modes try them all so you know how to use them.

The interface between the monitor and the cable might need replacement. Please check it.