Resolution I tried adjusting the resolution and when I rebooted, the monitor screen stayed black and showed an error that said the resolution wasn't possible. How do I return the resoluion to what it was when I can't get the screen back to make the changes ?

Your screen resolution or refresh rate is set out of limits for the monitor. Check your monitor documentation to determine the correct resolution and refresh rates for the monitor. Then reboot the PC, go into SAFE mode, then re-adjust the display resolution there. Once you reboot after that, the monitor should be fine.

it happened to me. I changed computers but that did not solve the problem so it's not the video card. what did help was I turned off the monitor to reboot it then, using a different computer I reset the resolution to the lowest possible setting. when the monitor adjusted to the new resolution it reset itself. I then set it back to the higher resolution and everything was centered again.

Acer produces a number of LCD computer monitors. Acer's monitors range from 17 inches to 27 inches. Some monitors offer wide-screen viewing, embedded speakers, high-definition visuals, and various display connection ports. Acer computer monitor problems include common issues such as dead pixels, error messages, and blank screens caused by incorrect connections. Some reviewers have also detected image problems with DVD playback on some models.

"Input Not Supported" Error Message Acer computer monitors such as the G24 may issue an "Input Not Supported" error message when users set the display resolution too high. The G24's maximum display resolution is 1920x1200 with a 60Hz refresh rate. Maximum resolutions vary according to the specific monitor model and according to the capabilities of the computer's video card. b> "Input Out of Range" b> Some Acer computer monitors may report an "Input Out of Range" error message due to incorrectly set monitor refresh rates. Much like the display resolution, each monitor also has specific monitor refresh rates with which it is compatible. Blank Screen or "No Signal" Error b> Like other monitors, Acer computer monitors feature color-coded power indicator lights. If the power indicator light shows green, the contrast or brightness levels may be set too low and should be adjusted via the OnScreen Display. If this does not rid the monitor of a black screen, the monitor may be experiencing hardware failure. The "No Signal" or "Check Cable message" may indicate a problem with the monitor's cable connection with the video card. This error may also appear on a blank screen backdrop if the monitor is plugged into the incorrect port on the computer or if the computer is frozen and needs to be rebooted. Faulty power cords or outlets may cause the screen to be black and to show no power indicator color. b> Image Issues b> Some review sites such as CNET have reported problems with streaking and ghosting during DVD playback on some Acer computer monitors such as the AL1931. (A "ghost" is an identical offset image as the primary or desired image.) Unstable or unclear image issues may be caused by incorrectly programmed VGA timings or incorrectly installed monitor drivers. b> Dead Pixels b> Dead pixels and sub-pixels can cause a variety of display enjoyment problems. Acer will only accept returns on LCD computer monitors that have "more than four (4) defective pixels per million pixels." Further, the central area of the monitor may have no more than one defective pixel. Acer does not differentiate in warranty terms between pixels and sub-pixels. Hope this helps.

Your windows 7 screen resolution is set too high and your display doesn't support it. There are 3 possible solutions to this problem:
1. Press F8 during startup and choose "Enable row-resolution video"
2. Press F8 during startup and choose "Safe mode" and change screen resolution there, then reboot.
3. You can always use another display (if you have one) to set screen resolution to lower value.

Does your desktop/PC display show anything before the monitor goes into power save mode? If nothing comes up, its possible that you have a loose VGA connection or that your video card/motherboard are defective in some ways. Try using a different monitor.

If the other monitor works fine with your computer, try changing/lowering the screen resolution. If in XP right-click on the desktop and go to Properties, and select the tab for display settings and adjust the resolution. If in Vista/Win7, right-click the desktop and select Screen Resolution/Display Settings and adjust it there. Then check and see if your LG monitor works on it.

If the other monitor also doesn't show any display, most likely the problem is either with your video cable or your PCs video card/motherboard, not the monitor.

Hope that helps. Good luck

Right click on desktop choose properties when the Properties window opens set the resolution to say 1024x768 32 bit, or 1280x1024 32 bit, reboot.

If one of those 5 computers has a working monitor,
set the device-resolution to 800-by-600 and the refresh-rate to 60 Hz.

Then, disconnect the "working" monitor, and connect the "problem" monitor.

It should say "auto-adjust", and then it should continue to display that 800-by-600 image.

Try upping the device-resolution to 1024-by-768,
and see if the "problem" monitor will support that resolution.

Try upping the device-resolution to 1280-by-1024,
and see if the "problem" monitor will support that resolution.

If you are getting a splash screen (COMPAQ) then video goes black, you can try this. Boot system in Enable VGA mode from the F8 menu and see if you get to the desktop. If you do, you can then go to display properties and adjust the resolution to the Optimal for the monitor.
If you do not get a splash screen, check you cable connections and ensure the Video cable is properly seated and no bent pins. If issue is occurring after the system was moved, also ensure that the correct video adapter connection is being used on the tower, as there may be 2

it happens because you have selected( accidentally or otherwise) the resolution that the monitor cannot handle easily. So each time turn on the computer the screen tries to adjust itself to work with the resolution that you have selected. Select a screen resolution that the monitor can handle and work with.

try to start your pc in safemode with vga mode with thjis faulty monitor
hope you know how to do it
start pc (powerr on)
then continuously press F8 key then it will show you boot menu
select safemode with command prompt
then if it show desktop on screen this means your monitor is having problem with resolution try to downgrade your monitor's resolution
rightclik on desktopgo to properties
select settings
here you can find screen resolution make it to 800X 600 just for one time
then restart your pc it will auto select proper screen resolution