Question about Dell OptiPlex SX270 PC Desktop

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Screen resolution cannot be set.

The slider for changing the screen resolution in the setting does not move.
Monitor type cannot be selected as the properties tab is greyed out.


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Check in the device manager is the video driver has no conflicts and is installed. you might need to re-install the video card driver too.

Posted on Sep 25, 2008

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Posted on Jan 02, 2017

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Tried to enlarge the screen and screen went black and now showing this! I turned it off and hit F8! It came on I pressed safe mode! I tried to get on Internet and it locked up again ! Back to this scr


When a monitor displays "Input not supported", the display resolution is set too high. To resolve this, change the resolution to a supported resolution of the monitor.
In Windows XP
  1. Click Start, click Control Panel, click Appearance and Themes, and then click Display.
  2. On the Settings tab, under Screen resolution, drag the slider to the desired resolution and click Apply.
  3. When prompted to apply the settings, click OK. The screen will turn black for a moment.
  4. Once the screen resolution changes, confirm the change by selecting Yes. A timer will count down for 15 seconds to ensure the change is desired.
    Click Yes to confirm the change; click No or do nothing to revert to the previous setting.
In Windows Vista
  1. Press the Start button , select Control Panel, select Appearance and Personalization, select Personalization, and then Display Settings.
  2. Under Resolution, move the slider to the desired resolution and click Apply.

Oct 20, 2012 | Computers & Internet

1 Answer

Sul monitor Acer AL1515 compare Input Not Supported


When a monitor displays "Input not supported", the display resolution is set too high. To resolve this, change the resolution to a supported resolution of the monitor. What you can do is restart your computer to safe mode first. These are the steps going into safe mode:

1. Make sure your computer is off.

2. Turn on computer then tap F8 repeatedly once per second. Similarly, Windows advanced options menu should be up on you screen.

3. use arrow keys to highlight "safe mode".

4. press enter twice.

5. log on to your user profile

6. you will get a window asking you to press "yes" or "no". CLICK the YES button.

7. perform the next steps below according to your windows version (operating system)

In Windows XP

  1. Click Start, click Control Panel, click Appearance and Themes, and then click Display.
  2. On the Settings tab, under Screen resolution, drag the slider to the desired resolution and click Apply.
  3. When prompted to apply the settings, click OK. The screen will turn black for a moment.
  4. Once the screen resolution changes, confirm the change by selecting Yes. A timer will count down for 15 seconds to ensure the change is desired.
    Click Yes to confirm the change; click No or do nothing to revert to the previous setting.

In Windows Vista
  1. Press the Start button , select Control Panel, select Appearance and Personalization, select Personalization, and then Display Settings.
  2. Under Resolution, move the slider to the desired resolution and click Apply.
NOTE: For Windows 7, it should be similar to the steps for Windows Vista.

Jan 16, 2011 | Acer X193W LCD Monitor

1 Answer

Monitor screen is almost completely black - i can only see the desktop very slightly. is there a light bulb that can be replaced to fix this?


Change the display resolution in Windows To change the display resolution to the highest resolution, use the following actions.
  • In Windows 7 , click Start , click Control Panel , find the Appearance and Personalization area , and click Adjust Screen Resolution . Move the slider bar until the highest resolution for the monitor is set, and click OK .
  • In Windows Vista , click Start , click Control Panel , find the Appearance and Personalization area , and click Adjust Screen Resolution . Move the slider bar until the highest resolution for the monitor is set, and click OK .
  • In Windows XP , click Start , click Settings , and then click Control Panel . Double-click the Display icon, and select the Settings tab. Move the slider bar until the highest resolution is set, and click OK .
If the screen is still blurry, please contact an HP support technician for further assistance.

Also see To troubleshoot this problem, make sure the AC adapter is connected. For specific steps, see HP Notebook PCs - Troubleshooting Black Screen Displays with No Error Messages During Startup or Boot .

Nov 02, 2010 | HP G60-127NR Notebook

2 Answers

Settings have been changed.


Change the resolution in your PC control panel/display settings tab.

Jun 08, 2010 | Acer 22" X223w LCD Monitor

1 Answer

How do I alter the definiton of the monitor?Illyama 2209hd.


I am assuming you mean the screen resolution.

It depends on what operating system you are running, but I will assume it's Windows.

You need to go to Control Panel (Start>Control Panel) and double click Display.

Select the Settings tab and then you will see a slider bar under Screen Resolution. Move the slider to your Monitor's optimum resolution setting and click Apply

Apr 09, 2010 | iiyama PROLITE E2200WS WIDESCREEN LCD 22"...

1 Answer

Screen will flicker a few times at random periods


Change the display resolution in Windows Change the display resolution to the highest resolution using the following actions:
  • In Windows 7 , click Start , click Control Panel , find the Appearance and Personalization area , and click Adjust Screen Resolution . Move the slider bar until the highest resolution for the monitor is set, and click OK .
  • In Windows Vista , click Start , click Control Panel , find the Appearance and Personalization area , and click Adjust Screen Resolution . Move the slider bar until the highest resolution for the monitor is set, and click OK .
  • In Windows XP , click Start , click Settings , and then click Control Panel . Double-click the Display icon, and select the Settings tab. Move the slider bar until the highest resolution is set, and click OK .
If the screen is still blurry, the notebook display might need servicing.

Feb 13, 2010 | HP Pavilion dv4000 Notebook

2 Answers

I have knocked a button on my laptop the screen has gone small i can not make it bigger i have been into properties but dont know where to go next


Position your Mouse on your Desktop. Just on the background. Right click. Select Properties. Select the 'Settings' Tab. You can select the resolution of "800 x 600" for larger icons or if you want more desktop area move to the right. I am set to "1400 x900"

The other setting you should look for is the Color Quality. Generally this should be largest number. IE 32 bit.

Jan 01, 2010 | E-Machines eMachines Desktop PC

2 Answers

Font and screan to big and fuzzy


Right click on your desktop. Click on properties.
Click on Settings. Adjust the resolution based on the documentation for your screen.

Jun 27, 2008 | Smart Modular PYXSCAPE SV1170 17" Flat...

4 Answers

Acer x191w monitor background is moved to the right with about 2inches of black on left side.


Here is the fix;

1. Go to Screen Resolution
2. Select Acer Monitor
2. Find Advanced Settings and click
3. Find Screen Refresh Rate and change it to 75Hz
4. After the monitor flicks, changes it BACK TO 60Hz.

This fixed the problem for me. Hope it helps. :)

Jul 18, 2007 | Acer X191WSD Monitor

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