HDMI Audio on Intel Sandy Bridge HD 3000

[chalkie1975]

When I look at Ioreg it says 7.18.11 and reg/matched/active is all ticked?

When I plug my HDMi monitor into the machine, it says port 0x06. It's a benQG2420HD Monitor with built in headphones jack (no speakers)

Just to clarify, with the three framebuffers in ioreg, FB@0 is port 0x05 and corresponds to the DVI connection on my motherboard, FB@1 is port 0x06 and corresponds to hdmi connection, and FB@2 is port 0x07 and is the DisplayPort.

Should my AISNBGFB look like this:

00 02 03 00 00 00 00 00 ff ff ff ff
02 05 00 00 00 02 00 00 06 00 00 00
03 04 00 00 00 08 00 00 07 00 00 00
04 06 00 00 00 04 00 00 09 00 00 00

Putting them in DVI, HDMI, and DP sequence? I'm assuming the last set of four numbers are not port number related (because I don't have a port 9?)

 

[chalkie1975]

Not long after posting that, the new DVI cable arrived and I edited my AISNBGFB to the exact fb table I wrote above. Lo and behold my computer now had dual audio AND dual monitors working perfectly on an older AISNBGFB - so I shall edit the correct one with same table and see if that works as well.

Interesting side point about a monitor cable: I was using a dvi to VGA adapter which clearly scuppered my dual monitor dream because mac was expecting a VGA framebuffer

 

[toleda]

Not long after posting that, the new DVI cable arrived and I edited my AISNBGFB to the exact fb table I wrote above. Lo and behold my computer now had dual audio AND dual monitors working perfectly on an older AISNBGFB - so I shall edit the correct one with same table and see if that works as well.

Yes, update and edit the latest AISNBGFB.

 

[chalkie1975]

Something odd is happening...

I've used a pkg extractor to look inside the 10.7.3 update combo (which I downloaded from Apple) and when I look at the Information for the kext, versus what Champlist tells me, they both say different things I don't know if i'm installing the 7.12.9 AISNBGFB or the 7.1.2... or is that a bug in Champlist (only displaying the first 3 characters 712)

I've now also re-installed the native AppleHDA and lost my sound.. System Info says its found Audio ID 392 but my DSDT is:

               "layout-id", 
                        Buffer (0x04)
                        {
                            0x88, 0x01, 0x00, 0x00
                        },

 

[toleda]

Something odd is happening...

I've used a pkg extractor to look inside the 10.7.3 update combo (which I downloaded from Apple) and when I look at the Information for the kext, versus what Champlist tells me, they both say different things I don't know if i'm installing the 7.12.9 AISNBGFB or the 7.1.2... or is that a bug in Champlist (only displaying the first 3 characters 712)

I've now also re-installed the native AppleHDA and lost my sound.. System Info says its found Audio ID 392 but my DSDT is:

               "layout-id", 
                        Buffer (0x04)
                        {
                            0x88, 0x01, 0x00, 0x00
                        },

It is best to backup any edited kexts and install the combo update. It also makes sense to created a bootable backup of your system when everything works. For HD3000 HDMI audio, the Audio ID is 392; hex (392) is 188. You will need to download the 892 edited AplleHDA.kext and install. Native audio does not work in your system.

 

[chalkie1975]

I've combo updated and applied the edited applehda kext from the HDMi thread. I have dvi on fb0 and HDMi wih audio on fb1. I should upload my details to a thread for my motherboard since its pretty specific editing I went thru pulled from different sources.

I have a problem with native apple intel power management but that's another story. I can't seem to sleep and wake my machine. I have no sound assertion errors any more which is lovely. Thanks a huge bunch Toleda

I'll submit a thread about my experience and hopefully it'll help others out.

 

[slungu]

Ok, what if I do have a running Lion 10.7.3 but have no /Extra folder ? I might have missed something, but not sure what ( update from Lion 10.7.2 to 10.7.3 was trough Update Software ). Right now I have no sound device to choose from, but it is listed as hardware 889 ( board is a GA H67MA-USB3-B3 ).

Regards, Stefan

 

[slungu]

The part with the /Extra folder is clear now, and there is one on my system also, but I still have a question : are the procedures described in the september blog entry and the one of toleda also aplicable to a 10.7.3 system as they specify 10.7.2 in the documentation ?

Regards, Stefan

 

[toleda]

The part with the /Extra folder is clear now, and there is one on my system also, but I still have a question : are the procedures described in the september blog entry and the one of toleda also aplicable to a 10.7.3 system as they specify 10.7.2 in the documentation ?

Regards, Stefan

Post 1 of this guide is current and works for both 10.7.2. and 10.7.3. The blog post is no longer current. The guide for the kext edits is here http://www.tonymacx86.com/viewtopic.php?f=162&t=45795. It is current for 10.7.2 and 10.7.3 as well.

 

[slungu]

Somehow I managed to get HDMI in the system report, where all the line ins and outs appear, but not under Sound preferences - there I only have internal speaker line out and digital output, but no HDMI. I got the prepared kext and have done the dsdt edit. But I must have missed something. Any idea what ?

Thanks, Stefan