Bluetooth Dead after Sleep

Discussion in 'OS X Yosemite (10.10)' started by Fiestaman, May 14, 2015.

  1. Fiestaman macrumors regular

    Joined:
    Feb 7, 2009
    #1
    For the last week or so, my bluetooth will break after my computer goes into standby or sleep. It will work perfectly fine, but as soon as my computer goes into standby, when I bring it back up, the icon is greyed out like bluetooth is off, but I can't turn it on. Choosing "Turn Bluetooth On" does nothing, no matter how many times I try it. I read elsewhere that turning off wifi and turning it back on might kickstart it, but no luck. I also read that devices with an apostrophe in the name or just a device that got corrupted might throw things off, so I deleted all bluetooth devices. I have also reset SMC and PRAM with no improvement. Curiously, one time the computer came back from sleep and I had a squiggly line through the bluetooth icon and it said 'Bluetooth not available."

    I currently do this in terminal every time to get it working.

    sudo kextunload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport

    sudo kextload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport

    After I do this, bluetooth works perfectly until the next time I sleep. I have to think this is a software issue since unloading and reloading the kernel fixes things temporarily. Any suggestions before I wipe out my OSX and start from fresh?
     
  2. Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #2
    If you manually put the computer to sleep (going to the Apple symbol in menubar and selecting Sleep) does the issue happen after you wake the computer?

    A couple things to try:
    • Repair Permissions in Disk Utility and reboot.
    • Create a new user, reboot, login to the new user and see if the issue still happens.
    • Boot into safe mode (hold shift-key while booting) and see if the issue happens. If it does not happen in safe mode then it suggests that maybe the issue is being caused by a third party driver.
     
  3. Fiestaman thread starter macrumors regular

    Joined:
    Feb 7, 2009
    #3
    Thank you for the reply and sorry for taking so long to get back. Putting the computer into sleep manually still had bluetooth die after waking the computer. Repairing permissions did not help and the issue persisted with a new user. The issue also persisted in safe mode. I'm starting to think that I am stuck with a fresh install.
     

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