Pace IT - Troubleshooting Video and Displays

Troubleshooting video and displays.

Instructor, PACE-IT Program – Edmonds Community College

Areas of Expertise Industry Certifications

PC Hardware

Network Administration

IT Project Management

Network Design

User Training

IT Troubleshooting

Qualifications Summary

Education

M.B.A., IT Management, Western Governor’s University

B.S., IT Security, Western Governor’s University

Entrepreneur, executive leader, and proven manger with 10+ years of experience turning complex issues into efficient and effective solutions.

Strengths include developing and mentoring diverse workforces, improving processes, analyzing business needs and creating the solutions required— with a focus on technology.

Brian K. Ferrill, M.B.A.


– Six-step troubleshooting methodology.

– Common symptoms.

PACE-IT.

Six-step troubleshooting methodology.Troubleshooting video and displays.

Six-step troubleshooting methodology.

Steps.

1) Identify the problem.» Ask questions and, whenever possible, witness the problem

personally.» Troubleshooting can only be as effective as the

identification process.

2) Establish a theory of probable cause.

3) Test the theory to determine actual cause.

4) Establish a plan of action and implement the plan.

5) Verify full system functionality.

6) Document all findings, actions, and outcomes.


Common symptoms.Troubleshooting video and displays.

Common symptoms.

VGA mode.The most likely cause is an incorrect driver.

VGA mode is a default safe resolution that may result when a video card has been replaced and the driver is incorrect.

No images on the screen.

The most likely cause is either…

The monitor is not plugged in or receiving power, or the backlight has failed. If the latter is true, replacing the monitor is often more cost effective.

Overheating shutdowns.The most likely cause is poor ventilation.

Today’s graphics cards run hard (hot), so they need good airflow.


Common symptoms.

Dead pixels.The most likely cause is dead pixels.

If too many are dead, replace the monitor. They may just be stuck; try different methods to unstick. (There are YouTube videos that may help).

Artifacts.


An overheating graphics card or a bad DVI interface.

Color patterns are incorrect.The most likely cause is poor calibration.

Most people will not notice this problem. It can be difficult to manually adjust.


Common symptoms.

Dim image.


The settings have been turned down or the backlight has failed. If CRT, time to replace.

Flickering image.The most likely cause is a low refresh rate.

This is really only an issue with CRTs. Increase the refresh rate to 72 Hz or higher.

Distorted image.The most likely cause is the wrong resolution.

Modern monitors have a native resolution. The fix is usually to return to it.


Common symptoms.

Discoloration.The most likely cause is magnetic interference.

This is mostly an issue with CRTs. Moving the monitor away from other electrical devices usually solves this.

Blue screen of death (BSOD).The most likely cause is an incorrect driver.

Not very common today, but may still be an issue with some systems.


What was covered.Troubleshooting video and displays.

The most important of the six steps of the troubleshooting methodology is the proper identification of the problem. Establishing a theory of probable cause, testing the theory, establishing an action plan, verifying the solution, and documenting everything round out the methodology.

Topic

Six-step troubleshooting methodology.

Summary

Video and display troubleshooting is fairly easy. Many of the past problems are reduced with today’s technology, but that has led to some new ones (dim image due to backlight). Most techs will never physically work on a monitor.

Common symptoms.

THANK YOU!

This workforce solution was 100 percent funded by a $3 million grant awarded by the U.S. Department of Labor's Employment and Training Administration. The solution was created by the grantee and does not necessarily reflect the official position of the U.S. Department of Labor. The Department of Labor makes no guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or its completeness, timeliness, usefulness, adequacy, continued availability or ownership. Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53.

PACE-IT is an equal opportunity employer/program and auxiliary aids and services are available upon request to individuals with disabilities. For those that are hearing impaired, a video phone is available at the Services for Students with Disabilities (SSD) office in Mountlake Terrace Hall 159. Check www.edcc.edu/ssd for office hours. Call 425.354.3113 on a video phone for more information about the PACE-IT program. For any additional special accommodations needed, call the SSD office at 425.640.1814. Edmonds Community College does not discriminate on the basis of race; color; religion; national origin; sex; disability; sexual orientation; age; citizenship, marital, or veteran status; or genetic information in its programs and activities.

Pace IT - Troubleshooting Video and Displays

Education

Transcript of Pace IT - Troubleshooting Video and Displays