Summary 521 535 thats it for this demonstration to

Info icon This preview shows pages 23–25. Sign up to view the full content.

View Full Document Right Arrow Icon
Summary 5:21-5:35 That's it for this demonstration. To review, we looked at configuring display settings, in Mac OS El Capitan. We looked at changing the desktop background and screensaver. Changing screensaver password settings. We looked at changing the screen resolution and color profile. And we finished with setting up multiple displays. Video Troubleshooting 0:00-0:08 In this lesson, we're going to review common video and display-related issues. Video Components 0:09-0:26 When troubleshooting video issues, remember that the video system is composed of three separate components: the video adapter, the video cable, and the display device, which could be a monitor, projector or television. Display-related problems could be caused by any of these three different components.
Image of page 23

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
No Display - Basic Issues 0:27-0:56 Let's begin by discussing the situations where no image is displayed on the monitor. The cause could be simple or complex. Before trying to diagnose complex issues, you should first verify that all of the basic possible causes are accounted for, for example, verify that the computer is powered on, verify that the monitor is plugged into the wall outlet and is powered on, verify that the monitor is securely connected to the video board, and verify that the monitor isn't in power save mode. No Display - More Complex Issues 0:57-1:13 If the issue still exists after checking these basic issues, then you need to investigate more complex causes, such as a failed monitor, a failed monitor power supply, a failed video board, a damaged video cable, and a video board that's been jostled out of its slot. Troubleshooting Video Issues 1:14-1:47 An easy way to troubleshoot these issues is to get another known good system with functioning video, then connect the suspect monitor to the known good video board and connect the known good monitor to the suspect video board. If the suspect monitors works on the known good system, but not on the original system, then you know that the monitor itself is fine, there's a problem with the video board, cable or driver on the original system. On the other hand, if you plug in the suspect monitor into a known good system and you still don't see an image displayed, then the monitor is most likely not functioning correctly. Video Board Issues 1:48-2:31 If the monitor appears to be functioning correctly, then you may need to troubleshoot the video board. Common video board issues include the following: ESD damage, if the board was mishandled and was damaged by ESD, then it may malfunction. Overheating is another issue, a modern computer system generates a great deal of heat, the video board itself generates a lot of heat, if the system has inadequate cooling, then it's possible for the video board to be damaged by the undissipated heat.
Image of page 24
Image of page 25
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern