5.4 Given a scenario, troubleshoot video, projector, and display issues.

Question 1

This mode is similar to Safe Mode but for display issues. The PC boots with the minimum video drivers in use, which is helpful for troubleshooting.

Answer 1

VGA mode

Question 2

What does VGA mode do? How do you access it?

Answer 2

VGA mode uses a basic configuration that nearly any monitor will be able to display.

Press F8 during the startup process.

Question 3

What can cause no image on screen?

Answer 3

This can happen if there is a cabling issue such as incorrect input type, or a connection is not seated properly.

Question 4

What are dead pixels cause by? What can remedy it?

Answer 4

This issue is typically related to the hardware, or the monitor itself. Replacement of the display is usually necessary to correct it.

Question 5

What are artifacts, and what causes them?

Answer 5

These could be caused by problems with the adapter or video drivers.

Question 6

What are artifacts, and what causes them?

Answer 6

They are discolored pixelations, motion trails, image persistance, or unusual graphics on the screen. These could be caused by problems with the video card or video drivers.

Question 7

Incorrect color patterns could be caused by what?

Answer 7

Damaged cables or a damaged connection port on the PC may be responsible for this malfunction.

Question 8

Dim image is often caused by…

Answer 8

Often has something to do with brightness settings on the display or with adapter issues.

Question 9

Flickering image can be caused by what?

Answer 9

This happens when there are damaged cables or a damaged connection port on the PC.

Question 10

Damaged cables and ports may often result in what issues?

Answer 10

Flickering screen and incorrect colors.

Question 11

Distorted image is symptomatic of….

Answer 11

Incorrect system settings on your OS. The refresh rate or resolution may also be at fault.

Question 12

What is distorted geometry and what could cause it?

Answer 12

Warped borders of the screen (trapezoid/slanted/etc). This could be caused by display settings, video card issues, or magnetic interference.

Question 13

What can cause burn-in?

Answer 13

This is caused when images stick on the screen and become permanent parts of the display. It could be caused by stuck pixels.

Question 14

Oversized images and icons are probably the result of…

Answer 14

The resolution of the monitor not matching the system settings. Change native resolution.

Question 15

If you get the normal startup messages from your BIOS and the Windows’ splash screen, but then everything goes black after Windows loads, the problem maybe related to ___.

Answer 15

Windows/the OS

Question 16

If you have a missing color what is one of the first things you should check?

Answer 16

The cable for bent or missing pins.

Question 17

Changing the refresh rate and resolution settings may help solve what?

Answer 17

Distorted image/geometry

This is especially important on LCD displays (must match native resolution)

Question 18

This is especially important for LCD displays

Answer 18

Device settings must match native resolution

Question 19

A configuration setting that could affect the visual display and cause odd patters is ___. This is often an option within the graphics card configuration settings, or within the driver itself.

Answer 19

hardware acceleration

Question 20

Where do you to go disabled hardware acceleration?

Answer 20

Driver settings or graphics card configuration settings.

Question 21

Burn in/ghosting is caused by what?

Answer 21

Constant display of a particular image.

Question 22

What is one possible remedy for stuck pixels?

Answer 22

Displaying a fully white screen for an extended period of time.

Question 23

Stuck pixels/dead pixels are usually a problem with…

Answer 23

the display itself.

Question 24

What are ways to fix artifacts?

Answer 24

Adjusting video card settings, turning off hardware acceleration. Possibly replace video card.

Question 25

External/non integrated video drives could be prone to what?

Answer 25

Overheating which can lead to BSOD/crashes. Check heat sinks and fans on the video adapter and make sure driver is updated.