The SD card reader on my mid-2011 Mac Mini (Macmini5,1) has been acting up. SD cards inserted won't mount until I restart (leaving them inserted). If I eject the card, remove it from the slot and re-insert the same card, it won't mount until I reboot again. Things I've tried: checked slot for dust/debris/damage tried different cards, reformatting cards, etc. resetting SMC and PRAM tried on a guest user account (gives same behaviour) System profiler gives me the Vendor ID 0x14e4 and Device ID 0x16bc, I think that makes it a Broadcom BCM57785. I looked for drivers from Broadcom but only found stuff from the Hackintosh world and I'm hesitant to dabble with it. The problem has persisted for a while. I could live with it or get a USB card reader, but the reader works perfectly once I restart and get a card mounted. It seems like a simple software problem. Any suggestions?