ALC888 Sound Assertion in AppleHDAWidget

Discussion in 'Audio' started by tha_toadman, Feb 16, 2013.

  1. tha_toadman

    tha_toadman

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    Feb 16, 2013 #1
    tha_toadman

    tha_toadman

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    I'm using a GA-P35-DS3L running 10.8. I have a modified DSDT that works using the ALC888 Legacy kext from the latest MultiBeast (5.2.1). My problem though is that shortly after boot, I'm getting spammed with the following in my Console:
    Here is my HDEF section from the DSDT:
    Here is my IOreg file.
    View attachment Mac.zip

    Any input would be appreciated. Thanks!
     
  2. toleda

    toleda Moderator

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    Feb 17, 2013 #2
    toleda

    toleda Moderator

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    The latest MultiBeast/ALC888 is for 10.8.2. Update to 10.8.2.
     
  3. tha_toadman

    tha_toadman

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    Feb 17, 2013 #3
    tha_toadman

    tha_toadman

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    Updated, reinstalled the kext & rebooted. Still getting the spam in Console. I assume that now I have to manually patch AppleHDA with the 10.8.2 guide for my setup.
     
  4. toleda

    toleda Moderator

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    Feb 17, 2013 #4
    toleda

    toleda Moderator

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    Why would you assume that?
     
  5. tha_toadman

    tha_toadman

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    Feb 17, 2013 #5
    tha_toadman

    tha_toadman

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    Because something isn't right here. The DSDT works so the other part would point to the kext. Do you or do you not agree?
     
  6. toleda

    toleda Moderator

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    Feb 17, 2013 #6
    toleda

    toleda Moderator

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  7. tha_toadman

    tha_toadman

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    Feb 17, 2013 #7
    tha_toadman

    tha_toadman

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    I did that and it's still kicking out console messages about the sound assertion. My DSDT edit is identical to the HDEF edits using layout 1.

    My system information is showing the same as the screen shots in the guide.
     
  8. toleda

    toleda Moderator

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    Feb 17, 2013 #8
    toleda

    toleda Moderator

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    Is audio working as expected? Are the sound assertions causing any problems? There is no solution for this problem. You choices are the ignore the sound assertions, remove this audio solution or use a different audio solution.
     
  9. jerrywilborn

    jerrywilborn

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    Nov 14, 2013 #9
    jerrywilborn

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    Here's how I fixed the issue (using Terminal):



    1. cd /System/Library/Extensions/AppleHDA.kext/Contents/MacOS
    2. sudo cp AppleHDA AppleHDA.backup
    3. sudo perl -pi -e 's|\x53\x6F\x75\x6E\x64\x20\x61\x73\x73\x65\x72\x74\x69\x6F\x6E\x20|\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00|g' AppleHDA
    4. Use Kext Wizard to rebuild your cache and repair permissions.
    5. Reboot!
    Now dmesg is usable!
     
  10. toleda

    toleda Moderator

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    Nov 14, 2013 #10
    toleda

    toleda Moderator

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    Since you did not create the patch, give credit/link to the user that did. By the way, the patch does not solve the problem, it prevents the message from being logged.
     

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