5.4 Given a scenario, troubleshoot video, projector, and display issues. Flashcards
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.
VGA mode
What does VGA mode do? How do you access it?
VGA mode uses a basic configuration that nearly any monitor will be able to display.
Press F8 during the startup process.
What can cause no image on screen?
This can happen if there is a cabling issue such as incorrect input type, or a connection is not seated properly.
What are dead pixels cause by? What can remedy it?
This issue is typically related to the hardware, or the monitor itself. Replacement of the display is usually necessary to correct it.
What are artifacts, and what causes them?
These could be caused by problems with the adapter or video drivers.
What are artifacts, and what causes them?
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.
Incorrect color patterns could be caused by what?
Damaged cables or a damaged connection port on the PC may be responsible for this malfunction.
Dim image is often caused by…
Often has something to do with brightness settings on the display or with adapter issues.
Flickering image can be caused by what?
This happens when there are damaged cables or a damaged connection port on the PC.
Damaged cables and ports may often result in what issues?
Flickering screen and incorrect colors.
Distorted image is symptomatic of….
Incorrect system settings on your OS. The refresh rate or resolution may also be at fault.
What is distorted geometry and what could cause it?
Warped borders of the screen (trapezoid/slanted/etc). This could be caused by display settings, video card issues, or magnetic interference.
What can cause burn-in?
This is caused when images stick on the screen and become permanent parts of the display. It could be caused by stuck pixels.
Oversized images and icons are probably the result of…
The resolution of the monitor not matching the system settings. Change native resolution.
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 ___.
Windows/the OS
If you have a missing color what is one of the first things you should check?
The cable for bent or missing pins.
Changing the refresh rate and resolution settings may help solve what?
Distorted image/geometry
This is especially important on LCD displays (must match native resolution)
This is especially important for LCD displays
Device settings must match native resolution
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.
hardware acceleration
Where do you to go disabled hardware acceleration?
Driver settings or graphics card configuration settings.
Burn in/ghosting is caused by what?
Constant display of a particular image.
What is one possible remedy for stuck pixels?
Displaying a fully white screen for an extended period of time.
Stuck pixels/dead pixels are usually a problem with…
the display itself.
What are ways to fix artifacts?
Adjusting video card settings, turning off hardware acceleration. Possibly replace video card.
External/non integrated video drives could be prone to what?
Overheating which can lead to BSOD/crashes. Check heat sinks and fans on the video adapter and make sure driver is updated.
