Monitor used to work fine. Disconnected from tower, and reconnected later to another similar working box (which had a good working monitor already) and just got blank white screen. Screen flashes from black to white at post and operating system start up then stays white. Colors never appear and the Windows logo is never seen nor anything for that matter. Screen just stays at solid white after that. Cables seem to be good, and power light is green. Help! Thanks!
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Re: Constant white screen
Check the brightness and contrast from the menu on the monitor try increasing it ... the problem will get solved... if same problem persists contact ur near by experrt technician he may tell that the tube is gone he must recharge it....
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I have a strong suspicion that you have burned a capacitor or two on the monitor. You will need to bring this in to have it serviced as it will require the monitor to be opened up and new capacitors replaced/resoldered.
Hi! For dell machines when u unplug the video cable/VGA from the tower while the system is on it will show monitor self test.If you are seeing a black box moving around the screen it means that monitor is ok.Check connection between monitor and tower.Make sure cables are securely plugged in.Check if the tower is ok. There is a possibility that your monitor is ok but the tower is not.check the power button (whats the color) if amber/orange, this means there is something wrong the the tower. If its blue or white it means its ok.Also check if you are going to hear one beep, it means system is booting up properly. If tower is ok and you are using a expansion video card then try to use internal one, normally its the vga port above the usbs.If you are going to use onboard video card make sure you enable it first in bios.If all things fail, contact your manufacturer, if the system is under warranty then they will send a tech to check the machine.hope this helps...
I had a similar situation. I have another capture card installed on my computer. I disabled the onboard device through Device Manager and then downloaded and installed the Newest version of the lifecam software, ver. 2.04, and then restarted the system. I also connected a microphone and used that rather than the mic built into the camera. So far, the loud white noise has not returned.
Good luck. I hope this helps and please let me know how it works out.
The part where you see some color bars and blinking green led is what we call MONITOR SELF TEST. A diagnostic pattern consisting of four colors (red, green, blue and white) appears, and the LED flashes slowly. this happens when signal cable from the monitor is disconnected from the tower and leaving the power chord for the monitor plugged in. If the monitor works properly on a different computer. then its a problem with the computer's video card sending out signal. im 85% sure that its a problem with your video card.