Topic Title: HD7950 HDMI HD sound (DTS-HD + Dolby TrueHD)
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Created On: 05/01/2013 09:46 AM
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 05/01/2013 09:46 AM
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Joined: 05/01/2013

I have a HD7950 and I can not get HD sound. Sound works for me. I proceeded as follows: 

This worked for me

Originally Posted by JeonjuHot
Hello. Im a korean user and Im not good at english. So. just interpret yourself.
I had a same problem as u guys.
I have 7950 and onkyo 707 receiver and after Ver. 12.3 audio drop had occured.
To solve this problem, I compared other drivers and found solution.

open regedit and find
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Video\{XXXX...}\0000
( 'XXXX' means device number. There are several device number folder and u should find 'AdapterDesc' in 0000 folder which key value is 'amd radeon HD 7XXX Series'. )

At that '0000' folder, Change 'PP_SclkDeepSleepDisable REG_DWORD' value 0 to 1.
and reboot~!~!~!

I AV Reciver Onkyo HT-R390. I can not operate HD sounds. They work only Dolby Digital and DTS. I use Cyberlink PowerDVD 11 and Media Player Classic with ffdshow codec. With my HD5850 HD sound went. Catalyst driver version is 13.5.

Thanks for the advice

 05/01/2013 11:54 AM
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Posts: 774
Joined: 07/30/2012

Are you looking for suggestions on how to resolve your issue, or are you providing a solution that worked for you? 

I realize the language barrier, but your post is not entirely clear to me.



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