AMD + Intel (Enduro) Laptop Brightness Fix on Win 10

PHgraphicsguy

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Jul 8, 2015
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System Specs that concerns the issue:
OS: Windows 10
GPU 1: AMD HD 7850M – Latest Driver from AMD
GPU 2: Intel HD 4000 – Latest Driver from Intel

Things to check before applying the fix:
Should be using the latest driver from AMD and Intel. Check your adapter if it is displayed as generic name or exact series number. Example “7800M” instead of “7850M”. Reason is that this fix won’t work if you are using the old driver from HP. It will only work if you are using the new driver 15.7.1 from AMD.

Fix step by step

Step 1:
Press Windows Key + R and type regedit then hit enter.

Step 2: Press Ctrl + F then find FeatureTestControl. If your value is set to something f840 or f940 change it to ffff. To do this right click on “FeatureTestControl” and hit Modify then typed in “ffff” on value data then hit OK.

Step 3: Still on registry select HKEY_LOCAL_MACHINE > SYSTEM > ControlSet002 > Control > Class > {4d36e968-e325-11ce-bfc1-08002be10318} > 0001. On the right pane select again “FeatureTestControl” modify value data to “ffff” then hit OK.

Step 4: Still on registry select HKEY_LOCAL_MACHINE > SYSTEM > Select make sure “Current” stays at 1.

Step 5: Restart your system and voila! Brightness is now working on your Win 10 System! ?


Additional Notes: I am assuming this might also work on other system using older graphics card under HD 5xxx, HD 6xxxx, HD 7xxx series that does not support official driver from manufacturer for Windows 10. FYI This fix will only work for generic driver fro AMD + Intel Graphics card.
 

PHgraphicsguy

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Jul 8, 2015
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You should... :) It works flawless on my old laptop. I can not use it for basic video editing using OpenCL.
 

q_hung

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Oct 11, 2015
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I tried several solutions posted on many forums, but only this one worked on my PC! I have to register to this forum just to say "Thank you very much indeed!".
 

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