iMac late 2013 + Mavericks + USB Sennheiser - input freeze

Thanks very much, fleabass. We have every right to complain indeed.

I just got a reply from the editor at Mactrast, thanking me for the report.

Maybe some press would help to get the ball rolling.

No Problem cdanr. That's Awesome about Mactrast. Let's hope it only takes 24 hours. crossing my fingers!!!

I think some press would definitely help. The more attention on this the better. It's amazing that even supervisor-level Apple techs haven't been informed of the issue.

https://discussions.apple.com/thread/5515996

Since i removed one usb hub now i only lost the mouse connection every hour and reconnect it could make it work again, Good work apple

Does anyone here affected have access to the 10.9.1 beta? Normally I wouldn't suggest anyone should install a beta version of OS X unless they really need to, but if there's a fix for this issue then it could understandably be worth the risk for some people.

15/12/2013 10:19:40.000 pm kernel[0]: USBF: 6730.867 IOUSBHIDDriver(IOUSBHIDDriver)::RearmInterruptRead returning error 0xe00002c0 (no such device), not issuing any reads to device

error code attached

Ok, I splitted up my fusion drive today in two single drives.

After this I installed Mavericks and Win 8.1 on SSD and formatted the HDD to store some data.

The problem is gone away. Its really a problem with the fusion drive driver.

I've noticed, as mentioned in the earlier pages of this thread, that the incidence of the freeze increases exponentially with my iPhone 5s just being plugged in via USB. I can still induce the lockups by attempting to use my Logitech USB headphones with Plex without fail but with the iPhone simply plugged in, it will lock up randomly and seemingly without warning.

So now I have the iPhone charging via the USB to AC adapter until Apple sorts this out. However, because of iTunes quirks with losing devices for WiFi sync it's annoying not to be able to plug in by USB.

I think this is probably going to require a firmware update. At least there is good evidence from reports in here that Apple is at least aware, and hopefully working on a fix.

It'd be awfully nice if Apple themselves publicly acknowledged it.

Hey cdanr > I can confirm this. When I hook up my iphone (5s) I get random lockups, however, when I connect my iphone to my led cinema display (which is connected to the imac through the thunderbolt port and usb) I get random lockups too(!). Same goes for my ipad and my Drobo d5 (usb3).

I got round this by hooking up the d5 through thunderbolt and NOT connecting the led display's usb cable. iphone and ipad can charge through the led display but sync using wifi.

Thank you very much for your report, Erik-H.

So it seems that one absolute cause of random lockups is when an iPhone is on the USB bus, no matter if it is on a hub or connected to a USB port of another connected device.

How many GBs are on the SSD? Do you have the 3TB or 1TB Fusion Drive? Think I'm going to boot off my SSD instead of running of my USB3 external...

If you're asking me, I have a 1TB Fusion Drive but this problem has been confirmed on 3TB Fusion systems as well.