Windows 8.1 Brightness Problem

Question

I just upgraded my HP 6735s laptop from windows 8 to windows 8.1 and I have discovered that the brightness does not work. I have tried everything! I can't find no drivers for my laptop so I don't know what to do next please help thank you !

Details: 

Processor: AMD Sempron SI-40 2.00 GHz

Ram: 1.00 GB

System Type: 32 bit x64 based processor 

Display Adapters: ATI Radeon HD 3200 [engineering sample-wddmv1.10

Windows 8.1 pro

[sorry if I did not give the right details. I am not that good with computers]

Answer 1

Hello,

Thank you for visiting Microsoft Community and providing us with the detailed description about the issue.

As per the description, I understand that you have upgraded the system to Windows 8.1 and now you are experiencing issue with brightness on the system.

I certainly understand your concern and will try my best to help you.

There is a possibility that this issue might have occurred due to incompatible or corrupt display drivers or the brightness settings are not correct in the system.

I would suggest you to try the following methods and check if it helps.

Method 1:

To check for the brightness settings, please follow the steps given below and check if it helps.

1. Press “Windows + C” keys on the keyboard.
2. In the search box, type Power Options.
3. Click on Power options, and under any plan, click Change plan settings.
4. Click Change advanced power settings.
5. In the list, expand Display, and then expand Enable adaptive brightness.
6. To turn adaptive brightness on or off when your computer is running on battery power, click On battery, and then, in the list, click On or Off.
7. To turn adaptive brightness on or off when your computer is plugged into an outlet, click Plugged in, and then, in the list, click On or Off.
8. Click Apply. Click OK

If the issue persists, follow method 2

Method 2:

Step 1: Update the Display driver.

Please follow the steps given below to update the display driver.

1. Press Windows key + X when you are at desktop.
2. Select Device Manager.
3. Expand Display adapters.
4. Right-click the display driver and click Update Driver Software.
5. Select Search Automatically for Updated Driver Software.

Step 2:

Check if there are any updates for display drivers available in Optional Updates; this might fix the issue. Refer to the following steps.

1. At the Start screen, type Windows Update.
2. Click or tap Settings on the right side of the screen, and then select Install optional updates from the left results.
3. When the Windows Update control panel opens, click on “Check for Updates” on the top left corner to receive a fresh list of updates.

Step 3: If the issue persists, I would suggest you to uninstall and reinstall the Display driver. Please follow the steps mentioned below to uninstall the display driver.

1. Open Device Manager.
2. Expand Display adapters.
3. Right-click the display card driver and click Uninstall.
4. Windows will prompt you to confirm the device’s removal. Click OK to remove the driver.
5. After the un-installation is complete, reboot your computer as soon as possible.

Computer will load the generic display drivers. Now, please go to the manufacturer’s website, download and install the compatible display card drivers for your computer and check.

You may also refer to the following website below to download the drivers for the Graphics card.

http://support.amd.com/en-us/download.

Also see**: Download and install drivers**

http://windows.microsoft.com/en-ca/windows-8/all-drivers

I hope this information is helpful.

Please do let us know if you need any further assistance, we will be glad to assist you.

Thank you.