Accidentally set computer to wrong refresh; now get no image on digital monitor; how do I change back?

Hi

You don't say which operating system you are using.

The monitor resolves images across a fixed range of resolutions and resfresh rates.

It is the resolution of the graphics card or graphics adapter that can be changed, not that of the monitor.

Right click on empty space on your desktop > properties > settings.

Left click and hold on the slider and slide to the right in stages.

Each resolution change offers you a test page to accept or reject.

When satisfied Apply > Yes > Ok.

To reset the Refresh Rate:

Properties > settings > Advanced > Refresh Rate.

Then restart your computer.

Be careful not to exceed the resolution/refresh rate range of your monitor (1280 x 1024) / 75.0 Hz because if you do, when you restart the computer, the monitor will be unable to resolve the image and you will get a blank screen and/or an Out Of Range error message.

An out of range problem might only be resolved by using a different monitor to reset the resolution back to within the range of the preferred monitor.

Hope this helps

Time for a new monitor, you can see if there's any time left on the warranty

"Out Of Range" means your video adapter is set to a resolution/refresh rate setting that is outside the range of supported signals.

Go into your Video Adapter's settings, look at resolution then the refresh rate (Hertz), and compare to those supported by the monitor.

When I had a similar problem, I noticed that somehow, the refresh rate was set at 59HZ which is unsupported. After changing to 60HZ (which is supported) the problem went away.

try booting in safemode .. to do that.. reboot computer, as soon as it starts coming up, hit f8, then with the menu that comes up hit, start in safe mode, when windows starts up, just change refresh rate back, and then reboot normal...

try booting into safe mode. press F8 while the computer is booting. see if everything stays normal. It should tell you that it booted into safe mode. Once there, change the resolution or the frequency of the display(also known as the refresh rate) by right clicking on the desktop and selecting properties. Once there, click the tab all the way to the right, it should give you color quality options and resolution options. At the bottom, there should be an advanced tab. Depending on our video card this menu can be different from others. Look in that new window for and option to change the refresh rate or the frequency. The value will be in xxx hertz. try setting it to 60 hertz.

I would check the connections between the monitor and computer. Also the refresh rate and/or resolution might be wrong. To correct this, you will need to boot your computer in safe mode. (restart computer, right after the computer's logo appears rapidly press the F8 key until a black and white menu appears. Select SAFE MODE) once the computer boots to safe mode, the sign on screen will appear very large. Sign onto the computer once at the desktop, RIGHT CLICK the background and select PROPERTIES. Once the display properties window appears click on the last tab SETTINGS. Here is where you can adjust the resolution. Take the screen resoltution to a low setting. You can always change this later when you boot your computer normally to get a better view. Next click on the ADVANCED button click on the MONITOR tab, usually flat screens operate at a lower refresh rate then CRT monitors. I usually keep my refresh rate to 60 Hertz. Next click on the GENERAL tab. This will allow you to change the DPI setting. I usually keep mine set to 96 DPI. You may want to experiment with this as monitors vary. Once done, click on the APPLY button then OK. Restart the comptuer and see if this has improved your display. You may need to do this several times trying different settings until you get a clear display. If you've exhausted all these steps, try a different monitor or changing the cable. If that fixes the problem then you know you have a bad monitor or cable. Good luck, let me know how it turns out.

This could be caused by any number of things. The first thing I would check is to make sure you have the cable plugged into both the monitor and the computer snuggly and that it hasn't come loose (if you haven't screwed the cable in using the thumb screws then you should). If this doesn't fix the problem I would check to make sure you are using the recommended resolution and refresh rate for your monitor (this can usually be found in the manual or if you change these settings some monitors will even tell you what the recommended settings are if you set them to something other then what is recommended). If you are using a Windows based PC you can check your resolution by right clicking anywhere there is a free spot on your desktop and choosing properties (or personalize if you are using Vista). This should bring up your display settings. If you click on the Advanced button and then click on Monitor you can change the refresh rate also. If you set it to something wrong just do not hit any keys or press any mouse buttons for 15 seconds and your computer should automatically revert to the setting you were using before. If none of these works and the cable running from your monitor to your computer is detachable then replacing the cable is recommended. Replacing it with a shielded cable that is gold tipped will provide the best connection (espically if you are using a longer cable). If none of these works you could have either a bad monitor or a bad video card. If you have a second monitor available I would hook that up and see if you see the same problem. If so, and you have already tried the resolution/refresh rate settings, it is quite possible your video card is going bad.

If the refresh rate is not properly set the monitor may have a wavy or an appearance that lines are going down ... This may also cause a flickering affect.
Distorted or skewed image on monitor. Issue: Distorted or skewed image on monitor.
Cause: This issue can occur from any of the below possibilities.

1. Windows issue.
2. Loose or defective cable.
3. Refresh rate issue
4. Interference.
5. Bad monitor.

Solution: Windows Issue If your monitor has a proper display until it gets into Windows 3.x, Windows 95, Windows 98, Windows NT, Windows 2000, Windows ME, or Windows XP please see document CH000121 for software or setting related issues.
Loose or defective cable You may receive a distorted image when the cable is loose or defective. Disconnect the video cable going from the back of the computer and verify that no pins are bent, burnt or broken. Once verified re-connect the monitor cable.
Refresh rate issue If the refresh rate is not properly set the monitor may have a wavy or an appearance that lines are going down or across the monitor slowly or fast. This may also cause a flickering affect. Additional information about how to change the refresh rate can be found on document CH000558.
Interference A distorted image can be caused by magnetic or other types of interference. Verify no speakers, fans or other magnetic devices are close to the monitor.
Bad Monitor If the above possibilities have been checked it is likely that the monitor is bad. To verify this it is recommended that the monitor be temporarily disconnected and then connected to another computer. This can be a friends computer, a work computer, and/or a computer at a service center. You can also help verify a defective monitor by connecting another monitor to your computer. Note: Connecting your possibly defective monitor to another computer will in no way harm the other computer.

Good Luck/Please dont for get to Rate.Thank You.

There may wrong setting of refresh rate. Most monitors work at 60 to 70 Hz refresh rate. Above that they tunned blank screen or out 0f range message displayed. Also check the output video signal. Please confirm technical specifications from the documentatation of the monitor.