Monitor Troubleshooting

Monitor Problems and Solutions
Monitor is blank after starting computer.
  1. Check to be sure that the Monitor has power and that the light is on.
  2. Check your cables connecting your monitor with your computer. NOTE: Depending on your computer and monitor set up you will a specific type of cable. You could have a Standard VGA cable (Click here), S-Video cable (Click here), DVI cable (Click here) or HDMI cable (Click here). Make sure all connections are firm and properly in place before retrying to start your computer.
  3. Disconnect all devices except for the mouse, keyboard and monitor. Reboot your computer to see if the issue is resolved. If it is, then it is one of the devices that you have disconnected that is causing the problem. Try connecting them one at a time and rebooting each time until the original problem occurs. Contact your technology coordinator and explain the situation.
  4. Try connecting the monitor to a different PC using the problem monitor's video cable. If it still doesn't work, try the known good monitors video cable.
  5. Try unplugging the monitors power cable, then wait about 20 or 30 seconds and plug it back in.
  6. If none of the above troubleshooting steps does not solve the issue, then it is likely that the monitor is bad and will need to be replaced.
The display is rotated.
  • Go to Start and then Control Panel, then to Intel Extreme Graphics Applet and then Rotation tab.
  • Uncheck the Enable Rotation check box. (Click here)
  • Click Apply, then OK.
  • Exit Control Panel, and then display should be the correct orientation.
Determining type and size of monitor.
  • There are 2 major monitor types in schools. They are CRT (Cathode Ray Tube) and LCD (Liquid Crystal Display). CRT monitors (Click here) are the clunky older monitors, while the LCDs (Click here) are flat-screen displays.
  • To determine a computers monitor size, one would need to measure the screen diagonally from corner to corner.
  • Sometimes you will need to provide this information when you encounter some problems and report an issue to a technology coordinator.
The words on the monitor are too small and unreadable.
  • You will need to change the monitor's screen resolution.
  • Right click the Desktop and click Properties.
  • Go to the setting tab and check the screen resolution. Choose a notch, click apply and then click ok. (Click here)
The picture on the monitor is stretched, too bright/dark, or is not the way you like it.
  • You will need to check the monitor settings. Look for a button on the bottom of the monitor which will open a menu to change monitor settings.
  • Find the default settings and return the monitor to default settings. (Click here)
  • Use the vertical and horizontal settings to center the image and stretch to your liking. (Click here)
  • Set the brightness and contrast to your liking. (Click here)
  • Set the hue and locate the point where the colors on the screen look accurate or life-like. (Click here)
  • If the settings do not improve the image display, the monitor may be going bad. Contact your technology coordinator.
The image around the edges of the screen does not look right.

NOTE: This is for CRT monitors only.
  • You may need to degauss the monitor. In most cases the monitor will degauss itself. Degaussing will clear electromagnetic buildup from the screen.
  • Simply turn the monitor off and turn it back on.
  • You could also look through the monitor settings and select degauss from the options. (Click here)
  • You should hear a specific "static" sound. The screen may look odd for a second as it reconfigures itself. (Click here) The monitor should be back to normal after the degaussing process.

NOTE: The troubleshooting procedures are for monitors in general. Each monitor may have different settings and options to change. Contact your technology coordinator if you cannot resolve a monitor issue.