I am trying to use a Envision screen in place of my laptop screen. I have the plugs in the proper place. When I boot up my laptop the Envision screen boots up and once it shows my windows xp signal, it shuts off and indicates no signal.
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Turn the laptop over, on the bottom you will find a screw about 5-6 inches in from the cd-rom drive. The screw will have a little symbol of a CD next to it. If you remove this screw the cd-rom drive should slide right out. Be sure to do this with the laptop turned off, unplugged and with the battery removed.
I would go ahead and boot into safe mode where you say it does work and then take a look. See how it detected it...ie look in device manager and see if it picked it up by it's true brand/type etc. Check the settings both of the display and on the envision itself. Check the resolution selection. It's probably picking it up as a lower res. but when it boots into reg windows may be trying to run at full res and perhaps that's what it won't do. Check to see what driver it's using. It may need the specific driver from envision and not the generic driver. It could also be a bad pin on the envision itself.
If you have another computer you can hook it up to, do that to make sure the envision is working. That way you can deduce which is the problem, the monitor or the setup in your laptop.
This problem is mostly likely with your LCD screen. It needs to be replaced. I suggest you connect your laptop to an external computer monitor and see if you still see the same issue on the external monitor. If you don't see it, then for sure it is not your motherboard or graphic chip. It has to do with your screen. In rare cases this can also happen if your wiring for the LCD screen is going bad or damaged.
Once you connect the external computer monitor to your laptop, turn your laptop on and located the "FN" and "F4 or F5 key depending on the laptop model" key on your laptop. Hold FN down and hit the F4 key once and see if the screen switches to your external monitor. If not, hit it again and wait.
Some newer laptops auto detect external monitors when they are connected to one.
Make sure the external VGA port on your laptop is enabled. Not all laptops automatically detect a monitor connected and turn on the port. There will be a function key somewhere on the keyboard to control the port. Location varies by manufacturer and model. The usual sequence when you press the key is: laptop display on and external VGA off, laptop off and VGA on, both on.