Windows 10: Monitor turns on perfectly fine. But only shows blue light and not the “no signal” text

While I was playing games. My monitor went black randomly. I was so confused, and I tried unplugging and replugging the cables. It still shows blue light and not even the “no signal” text. But my 2nd monitor works perfectly fine. I even tried opening the monitor insides to see if I could see the problem. But the backlight is fine, other stuff is fine, and the cable is also fine. No issue with the cables and stuff. I even tried unplugging and replugging the insides of the monitor and turning it on. Blue light only showing, and no other “analog,” and “no signal.”How do you fix this issue? I trie

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My monitor turned light blue

My monitor turned light blue. what is going on

Original title : steven

 

Blue Light Reduction cannot be turned off

My laptop is Thinkpad W530. The system is windows 10 home edition build 14393.693.
I set up my screen by using Blue Light Reduction (BLR). Now everyday after 9pm, the screen goes into blue light redution model. However, I want to revert it back to normal. The interesting thing comes that I cannot find way to. *SadNo BLR button in quick action. No BLR shows up in settings-display.

Here comes questions:
1) How could I get it before? I remember it bubble up before to let me set up.
2) How could I revert the system back to normal if I cannot do the same steps as instruction in my laptop as link below:

Blue Light Reduction - Turn On or Off in Windows 10

3) Is that I can only wait the system updated to like build 15007? Where I can download 15007?

 

Night Light Setting and Third Monitor.

Hi Reagan,

We would like to ask you some questions in order assist you properly:

• Did Night light work previously on all three monitors?
• Have you made any recent changes to your PC?
• Are you getting an error message on the third monitor regarding Night light?
• Is the third monitor being detected by your PC?
• What troubleshooting steps have you performed so far?

While waiting for your response, we suggest that you try to connect your third monitor to what you are using on the 2 working monitors to see if it is only a loose connection issue.

Regards.