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

[alex_tzardea]

Booting in verbose mode,this seems to be the single error i get... What does it mean,and how this error affects my system?thanks!
IMG_1547.JPG

 

[toleda]

Booting in verbose mode,this seems to be the single error i get... What does it mean,and how this error affects my system?thanks!
IMG_1547.JPG

Info only, no effect on performance.
THe message is telling you the HDMI audio device_id on your 6870 is recognized by AppleHDA.kext, however, your dsdt does not have hda-gfx injection to enable HDMI audio.

 

[alex_tzardea]

Thank you toleda for your quick reply! So all i need to do now to get HDMI audio is to edit my DSDT,right?

 

[toleda]

Thank you toleda for your quick reply! So all i need to do now to get HDMI audio is to edit my DSDT,right?

The dsdt edit for HDMI audio are mandatory. You may also have to edit the framebuffer to match the sense_id of your XFX graphics card.