How to troubleshoot common video and display issues and troubleshooting tools

There are multiple video formats now days. More video formats mean more problems. More problems essentially mean more precautions and more troubleshooting. One may face such problems as to see nothing on screen. But there is one embarrassing question out there. The question may seem to be foolish, but many a times this scenario happens, for which no image is scene on the screen. The question is whether the video output device is plugged in or not. If the answer is a positive one, then the next typical area to look at is a double check, a check of the power cord and data cable. When this thing also doesn't resolve the problem, and then starts the critical troubleshooting.



Common symptoms

Here are the common symptoms which can indicate some problems;


VGA mode

The new model monitors are not at all expected to be set as VGA as its default video running mode. But they cannot be configured in a way that it never supports a VGA format video. So the configuration should be checked by one, before complaining that the video is not supported by the device. There has to be some place in the control panel where the video supporting formats are to be chosen. One should go there and check, whether VGA format support is enabled there or not. If not checked in there, one should check that in and recheck, whether the video is viewable or not. If that resolves the problem, the trouble shooting for that issue cones to an end there. If not, then one is needed to then problems elsewhere.


No image on screen

Another common problem we face many a times is the blank screen or no display at all, or one may find the screen showing he command, no video to display. Very simple thing to check out there is to see the power chord of the device and whether power is reaching the output device it not. For the command shown, no video to display, one should check on the data cable. Most of such cases are solved there effectively, but if not, then one can look after another common problematic area. Not only that, but many a time it happens that he video cards are having incomplete videos. This also may cause a no display at the video screen. Generally videos are downloaded or copied from somewhere, and it happens sometimes that the download was not completed or some strings have gone missing due to a pause break during the downloading process. Again, during a file being copied or moved to some other devices, some parts have not begun copied properly due to a common problem of hardware acceleration. So, that must be checked by a try to play the videos at some other devices.


Overheat shutdown

Many a times, one can see that the entire display goes off, while a video is about to play. This thing starts a thought in one's mind that the video is a bad format or badly configured or may be corrupted. But another thing that may be happening to make the system shut down almost never comes to mind. The thing is the temperature. The system has a capacity to bear the temperature. But if it crosses the limit, then it is sure to go off. Sometimes, what happens is the system is running for a long time and it is already at its limited point of temperature. So, whenever the high pixel video is allowed to play, then the temperature limited is exceeded and that excess temperature make the system shut down.


Dead pixels

Another common issue for problems in video is the low pixels of video image. The colours of the video image may seem to be faded out or may be distorted at places. This is due to the bad quality of the input file, and nothing can be done there. But still, one can try to find out the quality of the video. If the video format is VGA or 3GP, then one can go to the control panel and check out whether all the types of video output format are selected or not. Checking in the video formats, may improve the rendering quality of the video. If one finds all the videos from different sources are showing the same dead pixels, then there must be a problem in the display system, and one should try to contact the manufacturer for that purpose.


Artifacts

Many a times the graphic quality is not supported be the system, one is handling for the videos to be displayed. For that, one may need graphic card additionally inserted or installed for finding a better video rendering experience. Apart from that, one faces these types of problems, when they go with cathode tube display monitors. There magnetic distortion creates problems to show a good quality video every time. So, before concluding the video to be badly configured or before saying that the video file is corrupted, one should check the file with other displays or monitors. If the problem is caused in a cathode ray tube display monitor, then one must check the file in a LCD monitor and see if it is running correctly or showing the same problem. If the trouble is displayed there also, then one is needed to search and check for other problematic issues.


Colour patterns incorrect

Incorrect colour patterns are very common in the cathode ray tube displays. But it is not even uncommon in LCD displays. The first concern is the graphics control and hardware acceleration properties. The old systems cannot accelerate with the fast and good quality video images, or the rendering of the images are not properly fetched out there. But if that video is rendered well and smoothly at some other LCD display, then the problem is sure to be with the old model display. If the problem persists in the LCD screen also, then the case reverses. Neither of the devices are having a problem. The problem lies within the video. In another instance, the colour pattern remains effected throughout the video and that remains same for all the video files in that device. Then the problem lies in the video settings of the system. One is recommended to check the video rendering settings by go in to the control panel.


Dim image

The video images may dim or show some attaching pixels on it. The LCD monitor one is using is having lots of pixel on it. Some pixels might doom down, some may show extra brightness, and again some may show different colours. If this problem continues, then one must contact with the manufacturer and go for a warranty replacement. Otherwise, sometimes the videos show a slow move on playing. This may be due to hardware acceleration problem. One might free up some space on the system or can remove the temp files from the system to get better quality output. One may also use some registry cleaners to make the unused unwanted files out of the system. This lessens the pressure on the hard disk, and thus the hard disk performance may increase by a lot.


Flickering image

The image flickering is a very common problem in old devices. Many a times the graphic quality is not supported be the system, one is handling for the videos to be displayed. For that, one may need graphic card additionally inserted or installed for finding a better video rendering experience. Apart from that, one faces these types of problems, when they go with cathode tube display monitors. There magnetic distortion creates problems to show a good quality video every time. So, before concluding the video to be badly configured or before saying that the video file is corrupted, one should check the file with other displays or monitors. If the problem is caused in a cathode ray tube display monitor, then one must check the file in a LCD monitor and see if it is running correctly or showing the same problem. If the trouble is displayed there also, then one is needed to search and check for other problematic issues. The colours of the video image may seem to be faded out or may be distorted at places. This is due to the bad quality of the input file, and nothing can be done there. But still, one can try to find out the quality of the video. If the video format is VGA or 3GP, then one can go to the control panel and check out whether all the types of video output format are selected or not. Checking in the video formats, may improve the rendering quality of the video. If one finds all the videos from different sources are showing the same dead pixels, then there must be a problem in the display system, and one should try to contact the manufacturer for that purpose.


Distorted image

Distorted image may be due to the dismantling of the LCD pixels. The pixels don't collaborate with each other every time. If this is the case then one must contact with the manufacturer to replace the system within warranty period. The other area of concern is the graphics control and hardware acceleration properties. The old systems cannot accelerate with the fast and good quality video images, or the rendering of the images are not properly fetched out there. But if that video is rendered well and smoothly at some other LCD display, then the problem is sure to be with the old model display. If the problem persists in the LCD screen also, then the case reverses. Neither of the devices are having a problem. The problem lies within the video. In another instance, the colour pattern remains effected throughout the video and that remains same for all the video files in that device. Then the problem lies in the video settings of the system. One is recommended to check the video rendering settings by go in to the control panel. This changing display configuration causes the image to be distorted or even broken screen images.


Discoloration (degaussing)

An old system generally displays this kind of problems. The entire video turns reddish or bluish or even may turn greenish. The cathode tubes generally functions by putting cathode rays on the pixels, and if this ray is not properly emit or refracted on the pixels, his type of problems continues. Otherwise hardware slowing down also creates such problems. For confirming the case, one may check the video in some new LCD monitors. If this is not the case in the new device, then it is time, when one should go for replacing the monitor or at least install a new tube by replacing the old one.


BSOD

The screen goes off and turns blue at times. The video is stopped and the entire system hangs down. The system was running at good condition, until the video was played. As soon as the video is allowed to render, the system turns blue and everything is stopped. For such condition, one must try to restart the system and check it again. The system has a capacity to bear the temperature. But if it crosses the limit, then it is sure to go off. Sometimes, what happens is the system is running for a long time and it is already at its limited point of temperature. So, whenever the high pixel video is allowed to play, then the temperature limited is exceeded and that excess temperature make the system shut down. Under that condition, one should allow the system to cool down for a while, and check the video again. If the problem remains then also, then the system is not supporting the video quality. That may be either for its too high quality, or may be its too low quality.


Thus a video may face problems, due to many reasons. The reason may be about the system configuration, or may be due to setting problem, or may be due to the device incompatibility. Once the exact reason is identified, then troubleshooting becomes much easier.


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