Q: El Capitan Bugs: USB Ports Not working + Shut down / Restart Problems
Since I updated to El Capitan, a couple of big issues:
1) My USB ports are not working properly. My superdrive won't get any power, so can't load any CDs. My USB mic (which worked fine with Yosemite) shows briefly as connected, and then immediately drops off. External hard drives, strangely, seem to work ... if intermittently. Huge problems here as I need to use my mic and CD drive, etc.
2) I can't shut down nor restart! When I try, the screen clears the desktop except for the background image, and then... nothing. I have to reboot and shut down manually by holding the power button every time.
This is on a mid-2012 Macbook Pro Retina.
I've reset the P Ram, I've reset the SMC, I've cleared my login items, and I've done a second clean re-install of El Capitan.
Any ideas? Thank you!
MacBook Pro with Retina display, OS X El Capitan (10.11)
Posted on Oct 4, 2015 6:28 PM
UPDATE - problem mostly fixed:
I backed up the computer, erased my entire internal disk, ran an internet recovery (which strangely only allowed me to recover Mountain Lion OS) - then updated to El Capitan.
Instead of running a complete time machine backup, I copied over select user files - documents, music, photos, videos, etc.
I'm re-installing all apps from scratch.
For now, this has fixed the following:
- Superdrive via USB is now working
- Restart / Shut Down / Log Out User are now working
Regarding my USB mic (Blue Yeti Pro), I emailed the manufacturer and they said this is a known issue with Blue USC mics.
They said they're awaiting a fix from Apple on that front.
So, it's a square one reinstall of El Capitan, copying over user files a la carte, and reinstalling all apps from scratch.
Posted on Oct 9, 2015 11:36 AM