Sound assertion ""ERROR: EFI ROM did not publish 'hda-gfx' ?

[davidm71]

I get this error at boot from the verbose listings:

 

Sound assertion ""ERROR: EFI ROM did not publish 'hda-gfx' ...

 

 

Thing is I had trouble getting sound working at one time, but now it seems to work ok but still have this error.

 

Anyone know why?

 

Thanks.

[NextMac]

I property the same problem.

[terranova2142]

I got same error after installed 10.7.2 und 10.7.3

[Gringo Vermelho]

That message is from AppleHDA picking up on the HD Audio device on your video card.

 

Add the generic injection code for HDMI audio to the HDEF device in your DSDT. it's around here somewhere, use the search to find it.

 

This will effectively "publish hda-gfx" and the error message will go away. It doesn't make your HDMI audio work though, you'll need to patch AppleHDA for that as well in the same way you do to make it drive your on-board sound.

[NextMac]

I solved the problem.

 

I find out, that i have installed different 889.kext.

I delete all unused 889.kext

 

and now the error gone away

 

hope it helps

[dapperDerek]

This is targeted for the beginners. Based on info from NextMac I did the following which got my sound working once again:

 

username$ sudo su -

root# mkdir -p /kextBackup/System/Libarary/Extensions

root# cd /System/Library/Extentions

root# mv HDAEnabler888.kext/ /kextBackup/System/Libarary/Extensions

root# mv HDAEnabler888b.kext/ /kextBackup/System/Libarary/Extensions

root# mv HDAEnabler889a.kext/ /kextBackup/System/Libarary/Extensions

root# mv HDAEnabler892.kext/ /kextBackup/System/Libarary/Extensions

root# exit

username$

 

qed

 

I left the HDAEnabler889.kext in place since that was the appropriate driver. I rebooted and voila, sound was back. All I can surmise is that I must have made a mistake while using [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url].

 

Now on to the next problem.

 

Cheers