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Post by chantarim on Mar 29, 2017 19:24:48 GMT
Hi,
first off: great stuff! Thank you very much for providing these drivers. I've been manually updating the drivers myself before.. this is alot easier.
Issue: Compared to the original Bootcamp drivers I cannot get the brightness controll working again.. Any ideas on how to fix it? I did do the DDU stuff under safe mode.. When i change the brightness it shows the controll going up and down but the brigthness does not change.
Any help would be great.
Thanks and regards, Tim
Version of Windows i.e. Windows 7, 8.1 or 10.
--> Win 8.1
The graphics card model number e.g. M370X, M295X, M390 etc.
M295X
What you did to install the drivers e.g. did you follow any instructions or do anything different to the instructions provided?
I followed the video including the DDU under Safe Mode.
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Post by Mat HD on Mar 29, 2017 21:39:59 GMT
Chantarim make sure that ddu is up to date before you uninstall current drivers as this has been known to cause issues if you don't.
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Post by chantarim on Mar 31, 2017 19:22:37 GMT
Thanks, I'll try again :-)
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Post by chantarim on Mar 31, 2017 19:49:10 GMT
Well, I tried again with the verified latest version of DDU, but no. The brightness still is not applied. After using DDU it worked with the standard microsoft driver. Installing the crimson broke it again
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Post by aurorawright on Apr 6, 2017 13:00:03 GMT
Confirming the issue with the Radeon Pro 460, even modifying the driver myself. I'll try to see when this regression was introduced and see if anything changed in the configuration (if not, maybe AMD removed Apple-related code from the public drivers altogether since they blacklisted all the Apple cards after all, in this case I don't think there's anything that can be done)
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Post by aurorawright on Apr 6, 2017 14:32:36 GMT
The regression was introduced in the latest version (17.4.1), if I had to guess it seems disabling KMD_EnableBrightnessInterface2 has no effect now. It's a problem in the driver itself (installing it manually from Device Manager is enough), it might be a bug (especially because by googling the value it seems it's useful for non-Apple laptop GPUs as well...), or they do this explicitly for Apple GPUs to piss us off. I'm rolling back to 17.3.3 personally.
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Post by Mat HD on Apr 6, 2017 16:22:30 GMT
Should be a simple enough fix on AMD's side. Let's hope it comes sooner rather than later as it not only affects Macs but all computers that use custom methods of controlling brightness.
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