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Chris_N
Journeyman III

Lenovo G575 Can't Adjust Brightness Win 10 - AMD Raedon HD 6250M

I have fitted an ssd and upgraded my Lenovo G575 Laptop from Windows 7 64 bit to Windows 10 64 bit. Everything was working fine except that I cannot adjust the screen brightness with the driver that Windows 10 has installed. I can make the brightness indicator move up and down with the laptop function keys or from Windows settings, but this has no effect at all on the brightness. 

Here is what I have tried so far:

On the Lenovo support page I downloaded and installed a driver made for Windows 8

https://pcsupport.lenovo.com/cy/en/products/laptops-and-netbooks/lenovo-g-series-laptops/lenovo-g575...

During the install there was a fail warning that said it could not install the Display Driver. It installed AMD Catalyst control Centre and and then I could adjust the brightness.

However I could not play any videos. I tried various video players and they opened and tried to play a video and suddenly auto closed. 

Then from the Lenovo site, I downloaded and installed the Windows 7 Drivers in compatibility mode. Again the brightness controls would work but the videos would not play or play with a lot of stuttering.   

Reinstalling the AMD driver Windows 10 chooses allows me to play videos without any problem but then the brightness controls will not work. 

 

I installed the AMD install manager which installed new chipset drivers but that did not solve the problem with the brightness or the video.

I can't find any other supported drivers for the AMD Raedon HD 6250M on the AMD support site. 

I'm not sure if I should leave the driver Microsoft chooses dated 2015 (Video works) and try and fix the brightness problem, or install the Windows 8 version  dated 2012 (brightness works) and try and fix the video problem.  

Your advice would be appreciated.

Kind regards

Chris

 

Driver Windows 10 Chooses (Video Works but can't adjust brightness)

Display.JPG

 

Fai´l  Report after installing Windows 8 Drivers (Brightness works but can't play videos) 

Catalyst™ Install Manager
Installation Report
01/28/21 17:58:56
Hardware information

Name AMD Radeon HD 6250M
Manufacturer Advanced Micro Devices, Inc.
Device ID 0x9804
Vendor ID 0x1002
Class Code 0x030000
Revision ID 0x00
Subsystem ID
Subsystem vendor ID
Other hardware
0x397c
0x17aa

Existing packages
AMD Catalyst Install Manager
AMD APP SDK Runtime
AMD Display Driver
AMD Video Converter
Microsoft Visual C++ 2008 SP1 Redistributable
AMD Accelerated Video Transcoding
AMD VISION Engine Control Center
Packages for install
AMD Display Driver
Final Status:
Fail
Version of Item: 15.200.1062.1004
Size: 90 Mbytes
AMD Catalyst Control Center
Final Status: Success
Version of Item: 2015.0804.21.41908
Size: 150 Mbytes
AMD Catalyst Install Manager

Final Status:
Version of Item:
Size:
Success
8.0.916.0
20 Mbytes

AMD Gaming Evolved App

Final Status:
Version of Item:
Size:
Success
2.11.000
49 Mbytes

Other detected devices
ATI Integrated Azalia Support
Manufacturer Advanced Micro Devices, Inc.
Page 1 of 4
file:///C:/Program%20Files/AMD/CIM/Reports/Report.xml 28/01/2021

Device ID 0x4383
Vendor ID 0x1002
Class Code 0x040300
Revision ID 0x40
Subsystem ID
Subsystem vendor ID
ATI Integrated SATA Support
0x397b
0x17aa

 

Manufacturer Advanced Micro Devices, Inc.
Device ID 0x4391
Vendor ID 0x1002
Class Code 0x010601
Revision ID 0x00
Subsystem ID
Subsystem vendor ID
0x3971
0x17aa

 

Manufacturer Advanced Micro Devices, Inc.
Device ID 0x1719
Vendor ID 0x1022
Class Code 0x060000
Revision ID 0x00
Subsystem ID
Subsystem vendor ID
0x0000
0x0000

 

 

 

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1 Solution
Chris_N
Journeyman III

I am replying to my own post as I have found the solution. The information may be useful if someone else faces a similar problem. 

I found the solution here:
Can't adjust brightness on Windows 10? Here's how to fix it

Its the one down the list: "Fix an ATI Bug via the Registry editor"

It says to change four registry values. In my case I only had to change one value (highlighted in red) as it was the only one available on my machine.


  1. HKEY_LOCAL_MACHINE \ SYSTEM \ ControlSet001 \ Control\Class \ {4d36e968-e325-11ce-bfc1-08002be10318} \ 0000
  2. Double click on MD_EnableBrightnesslf2. Change Value to 0 and repeat the same thing with KMD_EnableBrightnessInterface2. (Change Value from 1 to 0)
  3. Next, we will be navigating to a different path:
    HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Class \{4d36e968-e325-11ce-bfc1-08002be10318} \ 0001
  4. Double click on MD_EnableBrightnesslf2 and change its Value to 0. Do the same with KMD_EnableBrightnessInterface2.


After rebooting, the brightness controls work fine with the driver from Windows update. Videos play without any problem.

I hope this will be able to help someone else in the future

Kind regards
Chris

View solution in original post

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1 Reply
Chris_N
Journeyman III

I am replying to my own post as I have found the solution. The information may be useful if someone else faces a similar problem. 

I found the solution here:
Can't adjust brightness on Windows 10? Here's how to fix it

Its the one down the list: "Fix an ATI Bug via the Registry editor"

It says to change four registry values. In my case I only had to change one value (highlighted in red) as it was the only one available on my machine.


  1. HKEY_LOCAL_MACHINE \ SYSTEM \ ControlSet001 \ Control\Class \ {4d36e968-e325-11ce-bfc1-08002be10318} \ 0000
  2. Double click on MD_EnableBrightnesslf2. Change Value to 0 and repeat the same thing with KMD_EnableBrightnessInterface2. (Change Value from 1 to 0)
  3. Next, we will be navigating to a different path:
    HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Class \{4d36e968-e325-11ce-bfc1-08002be10318} \ 0001
  4. Double click on MD_EnableBrightnesslf2 and change its Value to 0. Do the same with KMD_EnableBrightnessInterface2.


After rebooting, the brightness controls work fine with the driver from Windows update. Videos play without any problem.

I hope this will be able to help someone else in the future

Kind regards
Chris

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