To any user still running Windows 7 (W8 AMD Brightness issue)

[Seketh]

As of now, Windows 8 AMD drivers don't have brightness controls. This seems to be due to incorrect values in the registry.

If you're running Windows 7, and have a 2G Tm2 (Core i3/i5) could you please check the correct values in the registry? More info here: The Ramblings of Adrynalyne: Fix Brightness Control for Windows 8 AMD SG Drivers

Please post both the values for 0001 and 0000. Thank you in advance!

[e-schreiber]

If you're running Windows 7, and have a 2G Tm2 (Core i3/i5) could you please check the correct values in the registry? More info here: The Ramblings of Adrynalyne: Fix Brightness Control for Windows 8 AMD SG Drivers

Tell me exactly which keys and values to look for and I'll try to help.

[Seketh]

It's simple, just follow these steps (assuming you don't know how to):

1) Open regedit (write regedit on the start menu search)

2) Click and open "HKEY_LOCAL_MACHINE" -> "SYSTEM" - "ControlSet001"

3) With "ControlSet001" highlighted, go to "Edit" - "Locate" and write "FeatureTestControl". Click locate next.

4) It should take you to a folder called "0000" and to the key "FeatureTestControl". The key should have something like "0x0000f920". What I need is the "f920" part of that number". It might be "f900", "f920"...

5) Check the same key value in the folder "0001".

Thanks!

[e-schreiber]

It's simple, just follow these steps (assuming you don't know how to):

1) Open regedit (write regedit on the start menu search)

You should have started with "first, ensure your computer is securely plugged to a power source". I know my way through the Registry, I just didn't want to read that dude's whole webpage.... Not sure if my specific TM2 model applies to your study. Here's the data I found:

Edit: I always boot with Intel Graphics. I rarely use the AMD graphics.

HP TM2 (i5-430UM, ATI HD-5450)

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Vi deo\{2...9}\0000]
"FeatureTestControl"=dword:0000f800

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Vi deo\{2...9}\0001]
"FeatureTestControl"=dword:0000f800

[Seketh]

I know you knew , I did it so anyone could check it.

Anyway, it didn't work. Intel GPU brightness is working fine, AMD GPU won't work regardless of the value in the registry.

I have no idea on how to solve this one...

[me8myself]

have you tried a hybrid of the two? 800 for the intel 840 for AMD. I seem to remember him saying that the 0001 was the dedicated card.