SD card reader not working on iMac

I see this did not get fixed in 10.6.6. Upgraded yesterday and still having issues. I am now starting to agree with some here and say this is a hardware issue. Going to check into that switch now after my backup finishes and report here to see if it works.

Hi, yes there has been lots of ?'s on this issue..Sometimes going the SMC route helps.
Others say restarting helps, one poster said his Mac had something replaced by the techs.
If you are either within the 12months warranty or have Applecare I would call AppleHelp....L

Do you actually take out the card reader after ejecting the icon from the desktop? Or do you leave that plugged in and just insert another card later? If you want it to show up you need to take the reader out of the USB port.

Hi, BD' the poster is referring to the built in reader SD reader..L

oops..... I keep forgetting that the new ones have it built in.

Hello everybody... I am experiencing the same issue with a built in SD card reader into my i7.

It always worked fine but started just yesterday not to detect SD cards... two different and that could be seen by my HP laptop 😟

I have restarted the iMac 2-3 time but did not help... just this morning it has worked after first startup with one of the two cards I mentioned... with the second no way.

I am a first time Apple user so not too experienced... any advice on what I could check/do from a SW standpoint before I look for the guarantee (hopefully I can get it fixed without Apple Care having this iMac for about 6 months now)...

Thanks in advance for your advice!!!

I am having the same issue, on start up it reads the SD card reader..but after you eject an SD card and try to mount another one it doesn't read it until you restart the system. Hopefully apple will have a fix for this soon sounds like its a common problem

Hi, have you any update for the forum on your Issue?...L

I have exactly the same issue and share the thinking that it needs to be a software issue.
Only add is that it happens randomly that card gets recognized also when reboot is not done with card inserted... but feels like a sort of lottery.

I did not have the chance to talk with assistance yet (I live in a different country than the one where I have purchased it), so I am eager to hear what you will be told to do by the store you are visiting.

Thanks for sharing and have a great day!

This may not apply to many people here, but it got me for a few minutes so I thought I'd share:

Virtual Machine software (eg Parallels, VMware, Virtual Box) may tag USB devices (such as the card reader, which is internally on the USB bus) as "for the virtual machine" and thereby hide them from the host OSX.

You can change that using your VM software settings, or the "usb" icon on the running virtual machine window.

Hi, any news?....L