Video Troubleshooting Facts Video Troubleshooting Facts
Contents
1. Video Troubleshooting Facts Video Troubleshooting Facts When troubleshooting video keep in mind that the problem might be with the video card the monitor or in software settings One good place to start in troubleshooting the video is to adjust the hardware screen settings such as brightness contrast or screen size The following table lists several common video problems Newer systems must have a video card and a monitor connected in order to boot If the Systa does Not b l system does not boot and the screen is blank check the monitor connection Colors not correct Colors are not smooth Blurry images strange color tints Image doesn t fill the screen image skewed image cut off Program or system lockup system crashes slow video performance Screen flickers or appears wavy user reports headaches Scrambled or distorted images blank screen high pitched tone Image does not display on a second monitor Incorrect display of colors is often caused by low color depth settings or capabilities of the video card e A color palette is the current list of colors that can be shown on the screen Color shift occurs when a new image must load a different palette than is currently used Color shift is common on display systems that use 4 16 or 256 colors To correct color shift increase the color depth of the display if the system will allow it If you cannot increase the color settings you will need to upgrad2. e your video card to one with more memory This problem is often caused by a weak or corrupt signal from the video card e Make sure the monitor cable is securely fastened to the video card e Check for bent or missing pins e On CRT monitors degauss the monitor to eliminate built up magnetic fields that can be distorting images Use the degauss button or turn the monitor off and back on Use the monitor settings to change the horizontal and vertical sizes and image geometry settings Software or system problems can be caused by incorrect video settings especially for programs that have high video demands To correct the problem e Update the video card drivers e Decrease the video acceleration settings This decreases the amount of processing done by the video card Correct these problems by increasing the refresh rate setting for the video card e Before increasing the refresh rate make sure the monitor can handle the higher setting e f you cannot increase the refresh rate try decreasing the resolution size and see if higher settings become available If not increase the video card memory or purchase a new card that supports higher settings These problems could occur if the monitor is not capable of handling the output from the video card This problem can be temporarily addressed by lowering settings in Windows Display Properties However upgrading the monitor is the only way to really fix the problem For problems w
3. ith dual monitor systems e Verify that the operating system is capable and configured for dual displays e Disable the on board video card if you have another AGP card installed You will need to use one AGP and one PCI card not two AGP cards e Make sure the video cards support dual display Video Troubleshooting Facts Digital video can be saved in one of several file formats called codecs Before you can play a video file your computer must have the corresponding codecs installed Many video files actually use two codecs one for video and one for audio If the audio plays but the video does not you have the correct audio codec but need the video codec installed Video files or DVD video does not play audio plays but no video Note If you change video settings in operating system and then the monitor is unreadable or blank reboot into Safe Mode adjust the video settings and reboot
Download Pdf Manuals
Related Search