tagsOf Posted January 9, 2014 Share Posted January 9, 2014 After failing to update Mavericks 10.9.1 from Mountain Lion 10.8.2, i start installing it from scratch.I install basic stuff of well knwon tony product and audio drivers by toledo without DSDT for my ALC887.The installation procedure is ok and i can boot on safe mode using flags :GraphicsEnabler=Yes -xWhen i boot without safe mode, i hang on the line : Sound assertion in AppleHDAEngine at line 581Configuration :Core i7 3770ASUS P8Z77-M (Audio ALC887)Nvidia GTX 560TiAny helps are welcome, i spent hours after searching solution on the web without success.Sorry for my poor english, it's not my native language. Link to comment Share on other sites More sharing options...
toleda Posted January 10, 2014 Share Posted January 10, 2014 When i boot without safe mode, i hang on the line : Sound assertion in AppleHDAEngine at line 581 Sound assertions do not hang/stop boot; the boot problem is likely a graphics problem. To fix the sound assertion, a dsdt edit is required; search MaximumBootBeepVolume Link to comment Share on other sites More sharing options...
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