Internal SD card slot, disk not ejected properly

So, your statement is that with SD card IN, ....any connected USB device will eject the SD card?

powered USB device? HD? what USB device is it?

perform SMC reset and verify again:

1. Shut down the computer.
2. Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
4. Release all the keys and the power button at the same time.
5. Press the power button to turn on the computer.

😊

I've had the same annoying issue with USB/Internal SD readed on my MBA for awhile too. (I think mine did it on Mountain Lion as well)

Any update or fix?

I have the same issue. Anyone have any input into this?

Bump...anyone?

I've had this problem for only several weeks—thought my SD card was on its last legs and was about to trash it.

Anyone closer to a root cause?

F

I'm under the impression this can't be fixed because of how the USB port is linked the to same hub as the SD card. Apparently in the new macs it is linked with something else and so it doesn't cause the dismount when plugging in USB items.

Force ejecting a volume seems an unlikely default 'feature' of the USB hub (hardware) especially in light of the fact this never occurred pre-Mavericks ie this seems a software behaviour.

I have the same issue too, but when my sd card ejects, it freezes my trackpad and keyboard. This problem also occurs in Ubuntu and Windows for me. Personally, I think the problem could be originating from the EFI software they have on these notebooks. I'm currently talking to a senior engineer at Apple to fix this problem. I will report back if they have any fixes to this issue. Also, what software do u have installed other than the standard software it comes with. And also, go to system settings > users and groups > login items and tell me what you have there. Maybe there is a connection to this problem. I thought I was the only one.

Hi, yes please do report back but no trackpad/kb issues here but even more issues along the USB chain for you

(all on the same USB bus yes?)

Have quite a lot in the login items so will update this once I'm back on that Mac...

Sorry, she called me back, I guess no one knows where this problem is coming from or at least how to fix it. Maybe they'll fix it in the future, but for now, not sure. I can't believe this issue is common amoungst all the macbook air's even the new ones.

Hello,

I have the same problem too.

First question: did everyone who have the problem make a report to bugreport.apple.com ? Several people doing this may encourage Apple to fix the issue.

Second question: did the fix given in this forum thread change something to this behaviour ?

I have the very same problem, didn't happen straight after mavericks update, started happening several months later. Also i'm on an 2010 iMac not a macbook air

I found out my issue long after, apple helped me. Mine was caused by the lack of support of the mtp driver. Everytime I connected my android, it would eject sd card slot. Mine was caused because of the program android transfer program auto starts when i log in. With that program, any usb i plug would eject the sd slot. Unless you have models before 2013, this shouldnt affect you.

I just realized that I haven't had the issue since i resinstalled OSX a couple of weeks ago and that I haven't installed android trannsfer program either. That was definitely what was causing my issue. Awesome, thanks for posting whizkid!

you didn't need to reformat your computer, all you have to do is remove application from the login items in system preferences, force quit the process in activity monitor and delete the application. But i guess thats good you dont have the problem anymore. By the way, this is only occuring on models before 2013. I have no idea why, but my haswell macbook air does not have this issue and I am able to use the Android File Transfer, without issues. The only difference between yours and my issue is that, my Keyboard and Trackpad was not working after it improperly ejected. Sometimes for a few seconds and sometimes indefinetely.