helpme Posted August 21, 2015 Share Posted August 21, 2015 Hi all! I recently updated my Yosemite to the latest release but I noticed one things to fix: my audio works if I'm using the laptop's subwoofer, otherwise if I connect devices to the 3,5mm jack, it continues to come off the laptop instead of earphones/headphones. This is was happens if I use power supply without battery connected to the laptop. When I connect my battery to the laptop, headphones start to work, and they continue to work even if I remove the battery, which seems to be nothing but an injector. If I reboot the computer, without battery connected, again: subwoofers work regardless of whether headset are connected or not. When I was under Yosemite 10.10.2 or 10.10.4 the same thing happened, with the difference that just after the first time that I connected the battery, headphones started to work also without battery and also after reboot. Not only, just after update I removed audio kext (from terminal with "sudo su" "rm -r /System/Library/Extensions/KextName.kext") and I rebooted the OS. At login I noticed that audio was working, but soon after Yosemite installation without the kext I use audio was off! So my suspicion is that 10.10.5 update has modified something but honestly I don't know what.. Here I've attached also my audio kext. Thanks in advance to everyone who'll help me! IDT92HD91BXXInject.kext.zip Link to comment https://www.insanelymac.com/forum/topic/307702-update-to-10105-audio-issue/ Share on other sites More sharing options...
helpme Posted August 22, 2015 Author Share Posted August 22, 2015 Edit: I connected my battery and rebooted machine. Headphones still don't work, so I think that should be a kext related issue. I had a search on my S/L/E folder and I found 5 kext audio (AppleFWAudio.kext, AppleUSBAudio.kext, AudioAUUC.kext, IOAudio2Family.kext, IOAudioFamily.kext), among them I noticed that the one attached on the bottom, on info tab, has been edited last time 18 august 2015, the same day when combo update has been installed. So I think that this kext could be the responsible of my problem.. What do you think? I would add that typing from terminal the command " kextstat | egrep 'Index|Audio' ", I got this result: Index Refs Address Size Wired Name (Version) <Linked Against> 83 4 0xffffff7f81cb5000 0x38000 0x38000 com.apple.iokit.IOAudioFamily (203.3) <82 5 4 3 1> 111 0 0xffffff7f81ced000 0x5000 0x5000 com.apple.driver.AudioAUUC (1.70) <83 33 12 11 7 5 4 3 1> These ones should be the active audio kext, right? AudioAUUC.kext.zip Link to comment https://www.insanelymac.com/forum/topic/307702-update-to-10105-audio-issue/#findComment-2162524 Share on other sites More sharing options...
helpme Posted August 23, 2015 Author Share Posted August 23, 2015 Edit2: No DSDT, no SSDT, no battery connected or not, no other reasons. Headphones just work only if connected to the laptop at boot. I don't know why but this is what exactly happens. Do someone knows if there's a patch to make em work even if connected after the boot? Thanks. Link to comment https://www.insanelymac.com/forum/topic/307702-update-to-10105-audio-issue/#findComment-2162837 Share on other sites More sharing options...
Recommended Posts