Windows 10: Night Light stays on until I adjust warmth

I have a HP Pavilion laptop running the latest version of Windows 10. I have Night Light set to turn on at 9pm and off at 5am.


There's a bug that happens more often than not though please note it doesn't happen 100% of the time; I'm not sure what's different about those nights: if I put my laptop to sleep by closing it, and Night Light is on at the time, Night Light will still be on the next time I open the computer, even if it's no longer night.


I've found a workaround for when this happens: I go into Night Light settings and adjust the warmth slider slightly. This action presumably triggers a time check in the code, because it always makes the screen colours go back to normal. However, it's really annoying to have to do this workaround most mornings, so after months of doing this I figured I should seek help here instead of just continue to tolerate a suboptimal situation.


So: why does this happen? And is there a way to prevent it, rather than having to cure it every time?

:)

 

Windows 10 night light color not returned when mode turned off

I have a dual monitor setup I just upgraded to identical Samsung monitors and a single AMD Radeon RX580 graphics card. I also have two computers hooked up to both.

After installation I had one monitor input from a laptop and the second monitor input from a desktop. Everything was great. It was late and on the desktop I wanted to try night light. I set it adjusted and adjusted the color tint. Everything was great but decided I did not like it. I shut off night light but the display never returned to the default brightness setting the other monitor still has.

Before trying sleep mode the monitors did have the same color warmth.

Both monitors are connected to the card using same brand display port cables. Prior to trying the night light the color warmth appeared the same.

When both monitors are using the desktop input in extend display mode there is a distinct tint difference between them. The monitors are side by side with the only gap between them the edge bezel. I am using the mostly white Windows settings application window to compare. When I position it to cross both monitors the monitor I tried night light on is definitely warmer with a less blue in it.

Both the computer and monitors have been powered off and no change.

What I have checked/attempted so far without resolution:

• Reset both monitors to default settings even though I never changed their settings. I have compared all the internal monitor settings for color tint/hue/etc. and they are the same.
  
• Using the AMD Radeon settings software I have reset both displays color management to default even though they were the same.
  
• In Windows display settings confirmed the night light setting is off for both displays. Just in case there is some bug still using the night light warmth setting both displays are set all the way to the right.
  
• In Windows display setting compared every setting I can see between the display and they are both exactly the same.
  

I have looked for some higher level display or graphics setting or properties settings that could explain it but I can't find anything.

Help? I am a fairly experienced PC user but I have reached the end of what I know to check.

If it would help to see a picture of the warmth difference I can provide one.

 

Night light

Hi,

There are several reasons why you are having issues turning on or off the Night Light settings of your Windows 10 PC after the update. To troubleshoot your Night Light settings, we suggest that you apply the steps on this

thread that was provided by SurenderKhokhar on April 15, 2017.

Let us know if you need further assistance.

 

Where has the warmth slider gone in the adjust function on the photos app?

The Missing Sliders have returned, Warmth and Tint. As with the 'Light' grouping, today I clicked on the existing 'Color' heading and the drop-downs indeed showed the reappearance of the missing adjustments.

How long will they stay around?? Don't know, but they're here now.