I'm running a 2010 Mac Pro with OpenCore (via OCLP 0.4.3) and UEFI dual-booting macOS and Windows 11 21H2 (22000.652) - so the latest version. I disabled Secure Boot, Driver Signing, and Defender, then followed these instructions, and I was able to get DDL and DTS Interactive showing in Realtek HD Audio Manager, but it's not working properly in games like Overwatch. I only hear sounds from the Front-Left and Front-Right speakers.
The last time it was working properly was probably around early February when I was running Windows 10 on this same machine via a manual install of OpenCore (not OCLP). I had installed these unsigned drivers probably a year ago and they'd been working properly since. I could hear discrete sounds from all 5 individual channels, depending on my position. If a gun was firing behind me and to the right, I heard it from the right-rear speaker. As my character rotated, the sound would move from speaker to speaker properly, as expected.
I run Overwatch around March 8, and suddenly I only hear sound from the Front-Left and Front-Right speakers. The only thing I think I had done was update OpenCore, because nothing else changed on the machine except a few Windows updates, but even then, they were security-related.
The weird thing is that I test it in Windows Sounds > Playback tab > double-click Realtek Digital Output > Supported Formats tab > under Encoded formats, select Dolby Digital > Test > I hear 6 discrete sounds from 6 discrete separate channels properly (5 + sub). I click the Advanced tab > Default Format is Dolby Digital Live (5.1 Surround) > Test > I hear the same test sound from the Front-Left, a pause (which would presumably be the center channel), then the proper test sound from the Front-Right...and that's it. Every time, I see the "DECODE" light actuated on my Logitech Z906 "receiver." I check the General tab > Jack Information > Rear Panel RCA Jack - which is incorrect. I am connected via optical TosLink cable.
Spatial Sound is off.
FWIW, in the Realtek HD Audio Manager > Speaker Configuration tab > only 2 speakers are showing, and in the Speaker configuration sub-section, Stereo is selected and grayed out/greyed out/disabled. So, it seems the machine isn't detecting the fact that the speakers are connected via TosLink. So, I disconnected and reconnected and even tried a different cable. No changes.
I uninstalled the drivers, tried the latest ones, tried the Windows ones, reinstalled Windows, and tested just about everything else I could imagine.
Is it possible something in OCLP is preventing this from working? I'm out of ideas.
![Screenshot 2022-04-27 220452.png]( "Screenshot 2022-04-27 220452.png")
![Screenshot 2022-04-27 220515.png]( "Screenshot 2022-04-27 220515.png")
![Screenshot 2022-04-27 220549.png]( "Screenshot 2022-04-27 220549.png")
![Screenshot 2022-04-27 220610.png]( "Screenshot 2022-04-27 220610.png")
The last time it was working properly was probably around early February when I was running Windows 10 on this same machine via a manual install of OpenCore (not OCLP). I had installed these unsigned drivers probably a year ago and they'd been working properly since. I could hear discrete sounds from all 5 individual channels, depending on my position. If a gun was firing behind me and to the right, I heard it from the right-rear speaker. As my character rotated, the sound would move from speaker to speaker properly, as expected.
I run Overwatch around March 8, and suddenly I only hear sound from the Front-Left and Front-Right speakers. The only thing I think I had done was update OpenCore, because nothing else changed on the machine except a few Windows updates, but even then, they were security-related.
The weird thing is that I test it in Windows Sounds > Playback tab > double-click Realtek Digital Output > Supported Formats tab > under Encoded formats, select Dolby Digital > Test > I hear 6 discrete sounds from 6 discrete separate channels properly (5 + sub). I click the Advanced tab > Default Format is Dolby Digital Live (5.1 Surround) > Test > I hear the same test sound from the Front-Left, a pause (which would presumably be the center channel), then the proper test sound from the Front-Right...and that's it. Every time, I see the "DECODE" light actuated on my Logitech Z906 "receiver." I check the General tab > Jack Information > Rear Panel RCA Jack - which is incorrect. I am connected via optical TosLink cable.
Spatial Sound is off.
FWIW, in the Realtek HD Audio Manager > Speaker Configuration tab > only 2 speakers are showing, and in the Speaker configuration sub-section, Stereo is selected and grayed out/greyed out/disabled. So, it seems the machine isn't detecting the fact that the speakers are connected via TosLink. So, I disconnected and reconnected and even tried a different cable. No changes.
I uninstalled the drivers, tried the latest ones, tried the Windows ones, reinstalled Windows, and tested just about everything else I could imagine.
Is it possible something in OCLP is preventing this from working? I'm out of ideas.
