Display brightness too dim

[Jordan_Brown]

The 100% brightness on my laptop is too dim. When I plug it in for charging the 100% brightness increases to a much better level but this level just isn't accessible on battery power. Is there anyway I can change this setting so I can full use out the display that I have paid for?

[A4Apollo]

Hey there! @Jordan_Brown,

Does the issue persist on the BIOS page? 

Please share the product number of the PC to assist you better.

Try the steps recommended below.

1. Go into "Control Panel" and then "Power Options".

2. Click the "Change plan settings" link next to whichever plan you are currently using and then click "Change advanced power settings".

3. In this new window click "Display" to open up the listings under it.

4. Now locate and click each of the following..."Display brightness", "Dimmed display brightness" and"Enable adaptive brightness".

5. Change each of these to the settings you wish, then click the "Apply" button and finally the "OK" button.

6. You should be good.

Select Start, choose Settings, then select System > Display. Under Brightness and color, move the Change brightness slider to adjust the brightness. (If the slider isn't there, see the Notes section below.)

Some PCs can let Windows automatically adjust screen brightness based on the current lighting conditions. To find out if your PC supports this, in Display settings, under Brightness and color, look for the Change brightness automatically when lighting changes check box and then select it to use this feature. This automatic setting helps make sure your screen is readable wherever you go. Even if you use it, you can still move the Change brightness slider to fine-tune the brightness level.
Notes: 
You might not see the Change brightness slider on desktop PCs that have an external monitor. To change the brightness on an external monitor, use the buttons on it. 
If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results. In Device Manager, select Display adapters, then select the display adapter. Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions.

Try updating BIOS, graphics and chipset drivers on the PC to the latest version and check if it helps.

Update the BIOS using this link. Click Here

Update the graphics driver using this link. Click Here

Also, refer this article to know more information about dim display issues. Click Here

Let me know if this helps! 
Have a pleasant day ahead! 🙂

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!