Monitor goes to sleeep on lap top

You might know this already, but here goes:
The auxiliary monitor settings are set by pressing the Fn key (usually at the bottom left of the keyboard) another (one of the F keys at the top of the keyboard). That F key may have a small icon of monitors with a slash between them. While booting try pressing the Fn key continuously while pressing the F key several times. It will cycle through different settingss of "only LCD" / "Only external monitor"/ both monitors/.... keep doing that it may restore your setting.

you may need to tell the lap top to display from that screen the new screen has no image or signal so goes to sleep to save power.on your lap top try the (FN) key on your laptop then select a blue picture on the keyboad of to squears one black one blue this will alter the display.OR in windows look at Start>controal pannel>display

Replace the VGA or HDMI (whichever you're using) Cable, and the Power Cable (one of the two can cause this problem, or even worse, fry it!)

Then,...... try connecting the monitor (with new video and power cables to another pc that you know for a fact is working correctly... the problem could be your power supply, motherboard, etc..

If that doesn't work.....Return The Monitor if you can..........cuz if the above doesnt fix your problem, ........then you'll know the monitor is bad......but don't assume that til you try my solution k!

Have you used the Fn button on your laptop and changed the video display Icon on the Blue Function keys. You need to change the display wait a few seconds for it to take affect. There are several modes try them all so you know how to use them.

sounds like the backlight has gone....test with an external monitor....if the external monitor works without any problems...the backlight has gone...better to get a professional to do this as its kind of fiddly and involves taking the screen apart

check your battery on some other's laptop, i think the battery life is over, you have to replace the battery

welcome to fixya

i would try this first goto device manger in your computer and find the video card in the list and see if it needs updated if this does not work it might be that the video card might be bad but it sounds like a video card update driver is needed

i hope this helps you out have a good day;:)

my system is showing furry coloring and has big icon on the screen.

Try connecting a mouse and keyboard to the laptop and then start it with the top closed. Not sure if this will work on your model, but it works on a lot of laptops. This should force the PC to use your external monitor as the primary one.