5.4 Troubleshooting Video and Display Issues

Question 1

Incorrect data source

Answer 1

• make sure cables are connected
• check input selection on monitor: HDMI, DVI, VGA, etc

Question 2

Physical cabling issue

Answer 2

• check for loose connections
• replace any bad cables
• check cable pins

Question 3

Burned-out bulb

Answer 3

• replace the light bulb

Question 4

Fuzzy image

Answer 4

• change display resolution
• native resolution looks best

Question 5

Display burn-in

Answer 5

• images that are left on an LCD screen for long periods of time will “burn” into the display
• some displays have pixel shift (slightly moves pixels to prevent burn-in)
• “clean” the screen by displaying a white image for an extended period of time

Question 6

Dead pixels

Answer 6

• pixel(s) always stays black
• manufacturing defect
• no way to fix a dead pixel, whole monitor must be replaced

Question 7

Flashing screen

Answer 7

• check for loose cables
• replace the video cables
• monitor may be broken; try a different monitor
• check the display settings in the OS

Question 8

Incorrect color display

Answer 8

• check monitor settings for tint or custom color presets
• factor reset settings
• check driver configuration
• some OS have “night shift” which lowers blue light output

Question 9

Audio issues

Answer 9

• monitor may have audio controls
• confirm audio output over HDMI, DisplayPort, or Thunderbolt

Question 10

Dim image

Answer 10

• check brightness and contrast in the monitor settings
• maybe caused by auto dimming or power-saving mode
• backlight failure

Question 11

Intermittent projector shutdown

Answer 11

• usually caused by high temperatures
• make sure the fans are working
• clean any dust or blockages off of the filters and vents