Try this Right Click any free space on the desktop, choose properties. You should get to Display Properties. Now select the Setting Tab and look inside the Display box and see whether your projector model is in the list and choose it. Hope, this will help.
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I think you’re meaning VGA not vda. VGA is a standard monitor connection that has been around forever, it has been on PC's since they were first around. pretty much all monitor will have one or more. Some TV's will have one and many projectors. HDMI is a much newer connection designed for TV's and High definition picture; they are common on satellite and cable TV boxes, DVD and Blu-Ray players, and many game consoles.
ok, Is the error you are given a NO Signal Error? In most laptops you have to connect the cables but you also have to press [FN] and F5 or F4, look for the key that has a small screen on it, to activate the external monitor function.
With only Cat 5 UTP cable segments, the maximum length for any cable segment is 100 meters, make sure that you don't exceed this. Also crossover cables are for switch to switch connections. You must use a straight thru cable from PC to switch port
In order to connect to wireless, 1st u need to have a devices with wireless features, such as laptop. When switching on your wireless, it will able to detect the wireless access point available. For non secured wireless, u can access the wireless network. If secured wireless, passkey is needed to access.
I am going to suggest with that message, the the TV does not understand the signals it is getting from the PC.
Reboot the laptop while connected to the TV, and turn the TV off, then On, while the PC is connected. If you continue to get the message, look in the manual for the TV to determine the reason for the message.
verify the settings for your monitor are correct. with a video card that supports an HDMI output you should be able to go into your display properties (maybe advanced properties) and either force the TV detection or force the HDMI output to be enabled so it's displaying on your PC and your TV simultaniously. I know with N Vidia GeForce video cards you can do this and with most major brands it should work similarly.
Could be a few things....first you need to isolate a signal source issue or a faulty LED lamp. Simply unplug your signal source and run the menus on the projector.
Purple Gone with source unplugged = faulty source our signal
Purple still there = faulty device
Sounds crazy but make sure you have no interference devices running real close within say 2 feet. cell phone, microwave, magnets, high voltage eletricity...etc