is there a way i can synchronize a camera and a projector so that the black lines don't appear when they're at the same frequency?jerromyjon said:
I can remember way back when I had the composite video feed (yellow RCA plug, red is right audio, white is left) from several electromagnetic tape recorders and I wanted them in electronic format so I bought a computer with a composite input adapter in the video card. With only electronic projection and no compatible sync feature the only other way I can think of is similar to old televisions where you had to manually adjust the horizontal and vertical timing to the adjust for the variability of the supply freq. - in laymen's terms "adjust" the frequency and timing of the video assuming of course you can get a camera that does that? I don't know I'm going way out in left field here.mfb said:
DennisHolland said:
)jerromyjon said:
There could be several reasons for a black line moving across the screen. One common cause is a damaged or faulty cable connecting the device to the screen. Another possibility is a problem with the graphics card or driver. Additionally, a software glitch or malware could also be the culprit.
It depends on the cause of the black line. If it is due to a damaged cable, replacing the cable should fix the issue. If it is a software or driver problem, updating the software or driver may resolve the issue. However, if the line is caused by a hardware problem, it may be more difficult or expensive to fix.
If the black line is moving on its own, it is likely due to a software issue. This could be caused by a malfunctioning application or a virus. If the line only moves when you are using a specific program, it may be a problem with that program. If it moves constantly, it is likely a virus or malware.
In most cases, a black line on the screen is not a sign of a serious problem. It is usually caused by a minor hardware or software issue. However, if the line is accompanied by other symptoms or if it is a recurring problem, it may be a sign of a more serious underlying issue. In these cases, it is best to seek professional help.
To prevent a black line from appearing on the screen, it is important to handle and maintain your device properly. This includes regularly updating software and drivers, avoiding malware and viruses, and handling the device with care to prevent physical damage. If you notice a black line on your screen, addressing the issue promptly can also prevent it from becoming a recurring problem.