I have the same problem (on a Lenovo Thinkpad T430s). I have tried with 3.6.0 upstream kernel.
franck@T430S:~$ uname -a Linux T430S 3.6.0-030600-generic #201209302035 SMP Mon Oct 1 00:36:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux The problem is still here, that is nothing seems to happen when : - inserting a card in the card reader - or even pluging out the card reader itself from its PCIe At least tail -f /var/log/syslog gives no output... In fact, unplugging the card reader has an effect: revision number changes. With card reader inserted, lspci gives: 04:00.0 System peripheral: Ricoh Co Ltd PCIe SDXC/MMC Host Controller (rev 04) With card reader ejected, lspci gives: 04:00.0 System peripheral: Ricoh Co Ltd PCIe SDXC/MMC Host Controller (rev ff) Maybe this is the standard behaviour ? ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1028004 Title: 1180:e823 MMC Card Reader not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1028004/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs