Jump to content

NUC6i3SYK: How can I enable Audio over HDMI (Big Sur)


Recommended Posts

Hervé gave me the tip:

 

HDMI audio can only work if you inject the HDMI type to the relevant connector (usually con1):

 

framebuffer-con1-enable 1 NUMBER

framebuffer-con1-type 00080000 DATA

 

 

But doesn't work

Bildschirmfoto 2021-10-15 um 16.15.49.jpg

Link to comment
Share on other sites

  • Replies 21
  • Created
  • Last Reply

Top Posters In This Topic

  • Administrators

@lamatta17 Check in IOReg which connector your HDMI display attaches to. Then inject the above properties to the identified connector. It's as simple as that. As stated by Jake, it may not be con1 on your NUC but con0 or con2 given that you inject SKL FB 0x191B0000 which defines 3 x output ports:

ID: 191B0000, STOLEN: 34 MB, FBMEM: 21 MB, VRAM: 1536 MB, Flags: 0x0000110F
TOTAL STOLEN: 56 MB, TOTAL CURSOR: 1 MB (1572864 bytes), MAX STOLEN: 124 MB, MAX OVERALL: 125 MB (131608576 bytes)
Model name: Intel HD Graphics SKL CRB
Camellia: CamelliaDisabled (0), Freq: 1388 Hz, FreqMax: 1388 Hz
Mobile: 1, PipeCount: 3, PortCount: 3, FBMemoryCount: 3
[0] busId: 0x00, pipe: 8, type: 0x00000002, flags: 0x00000098 - ConnectorLVDS
[1] busId: 0x05, pipe: 9, type: 0x00000400, flags: 0x00000187 - ConnectorDP
[2] busId: 0x04, pipe: 10, type: 0x00000400, flags: 0x00000187 - ConnectorDP
00000800 02000000 98000000
01050900 00040000 87010000
02040A00 00040000 87010000

 

I also notice that, for some unspecified reason, you inject pipe value 0x12 alongside the HDMI connector type. Please note that this was only required on Haswell platforms to obtain stable HDMI output. It ain't required on Skylake platforms and I recommend you remove that unnecessary property.

Link to comment
Share on other sites

Followed your tips. But it does not work.

 

The sleep mode also causes problems.
When I activate sleep mode, the power LED changes from steady blue to blinking orange. This is how it is supposed to be.
If I press a key the LED turns blue again, but there is no picture on the monitor. Hackintool shows:
hibernatemode and proximitywake green.

 

Wuz.ioreg.zip config.plist.zip

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share


×
×
  • Create New...