No display in laptop after powerred it on + Lenovo

https://forums.lenovo.com/t5/ThinkPad-Edge/Can-I-change-the-color-temperature/td-p/674445

https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/Can-you-change-color-white-temperature-of-the-display/td-p/4204703

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Sep. 15, 2015 - Re: Lenovo Y70 How to Change the Screen Color Temperature. 2015-09-15, 20:27 PM. Hi, I followed your instruction and the screen colors are ...

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Apr. 13, 2015 - I tryed to adjust the color calibration through the interal display functions ... that you facing issue with display calibration in your Lenovo G50-45 laptop. ... Particularly the much too high color temperature that is seen in a visible ...

Did you mean the Lenovo a269i? If so, here's a video on what you do:
https://www.youtube.com/watch?v=mvubAsq9TBY

Hi...
Gives continuous beep sound , When my laptop switch on (Lenovo G585). No display but leds (power & battery) were blinking.

Change the power settings. Under power settings you can set how long before monitor ' hard drives turn off.

check your laptop ram
check your laptop lcd inverter
check your laptop power ic

Hello,

The reason your laptop comes up and shows nothing on the display is because the laptop is not reading any information from the components of the laptop.

First remove the battery of the laptop and install it back in.

If that does not help, then you should unscrew that laptop open then remove the rem and the hard disk and fix them back in properly.

This should help.

Take care and good luck

try to removed the battery and unplugged the power cord,then while the battery is unplugged and as well as the power cord,press and hold the power button for one minute,thats the basic way of power draining the laptop,then after that,connect it direclty to the power outlet then turn it back on,if nothing happens,possible LCD or LCD cable,try to contact lenovo tech support for you to be able to send it to the repair center

You must veryfi the CPU and try without battery or try it without charger with a already charged battery! This must work!

The backlight is broken. These are small flourescent tube lights about the width of a pencil lead. You dropped the laptop and the bulb broke. It will have to be replaced. The driver has nothing to do with your problem, reinstalling it will not get your picture back.