Windows 10: Power plans screwed up; screen brightness isn't automatic anymore.

** This is not about adaptive brightness; I never had that option, nor would I have used it if I did. **


Before this last update, I had my power options set up so that when I was on battery, the screen automatically dimmed, and when I plugged in, it automatically reverted to 100% brightness. Now, I have to manually adjust it based on whether I'm in battery or not, every time. When I went to reset all my power options, I notice that the only two settings easily available to me on battery are sleep and shut down; when I go into advanced settings, there is no option to automatically adjust screen brightness based on power source. In fact, the only way I can find to adjust screen brightness is using the buttons on my keyboard, which is fine, but where are the sliders, for anyone who doesn't have screen dimming or brightening buttons on their keyboard? What happened? Can I get that option back somehow?

:)

 

Power plans automatically changing

Hi Jonah,

Thank you for contacting Microsoft Community. I understand that you have an issue with power plans.
I will surely help you to fix this issue.

This issue could have occurred due to incorrect Power settings. Try the steps listed here:

Method 1:

Let’s run the power troubleshooter and check if that helps.

a. Press Windows key on the keyboard.

b. In the search box, type Troubleshooting and press
Enter.

c. Click on ‘System and Security’ and click on ‘Power’ click on next to run the troubleshooter.

Method 2:

If the issue persists, I suggest you to
restore the power plans to default and check if it helps.

Step 1: Reset and restore the power plans to default:

• 
  Right-click on
  Start button and click on Command Prompt (Admin).
  
• 
  In the command prompt, type powercfg –restoredefaultschemes
  and hit Enter.
  
• 
  Exit command prompt.
  

Note: This would reset the power plan settings to default. Any customized power plans are would be removed.



Step 2:

Once the power plan is reset to default, you may create a
new power plan and customize the same according to your needs.



Refer to the link:

Power plans: Frequently asked questions

http://windows.microsoft.com/en-us/windows-8/power-plans-faq





Note: Applies to Windows 10.



Hope this information helps. Reply to the post with an updated status of the issue so that we can assist you further.

 

Permanently set specific brightness percentage for power plan

Here is how to set screen brightness by percentage :

1. Open Power Options, and click on Change plan settings for your current power plan.
   
2. Click on Change advanced power settings
   
3. In your current active power plan's (ex: High Performance) advanced settings, expand Display and Display brightness
   
4. Change the brightness percentage to the level you want, and click on OK.
   

 

Power plan?

Upon checking, it seems that there's nothing wrong with your system. It is usual that you have to double-click your mouse before your monitor wakes up.

For the meantime, we suggest changing the power plan by following the steps below:

• Press Windows key + S.
• Type in Power Settings.
• On the pop-up window, choose Additional power settings.
• Select High performance.

After changing the power plan, we suggest that you monitor the changes made and check if that will work for you.

Get back to us if you need further help.