Today I turned on my iMac for the first time in a month and crazy gremlins have invaded. Biggest issue is my audio output and input devices have disappeared. I use CODEC audio USB for output and input is the built in mic. Nothing shows up and I can't get any volume.
Also, what the heck happened to Garage Band? Suddenly things are changed and I can't record voice lessons!!!
iMac 21.5″, macOS 10.14
Chrissie, some things to try...
Safe Boot from the HD, (holding Shift key down at startup), does the problem occur in Safe Mode?
Safe mode attempts to repair Disks & clears lots of caches, so if Safe Mode works try again in regular boot.
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
http://support.apple.com/kb/HT3964
Reset is an NVRAM reset. You can look over steps on how to Reset NVRAM or PRAM on your Mac.
Chrissie, some things to try...
Safe Boot from the HD, (holding Shift key down at startup), does the problem occur in Safe Mode?
Safe mode attempts to repair Disks & clears lots of caches, so if Safe Mode works try again in regular boot.
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
http://support.apple.com/kb/HT3964
Reset is an NVRAM reset. You can look over steps on how to Reset NVRAM or PRAM on your Mac.
Thank you for taking the time to reply! I was finally able to reach the chat section of Apple and it was indeed the SMC!!!
Crazy!! I still there are gremlins that invade!! Haha, makes no sense what happened. Thanks again
Wow, that's interesting because the only USB I have is to my small mixer. I usually turn off my computer every night after work and never have had an issue. Thanks for the info! Definitely something to keep an eye on!!
Chrissie, normally that happens because USB devices are drawing to many mA, you canseewhat they are drawing in Dystem Report>Hardware>USB..
OK. :)
audio output input devices disappeared
