I can confirm, USB cardreader does not mount my drives. It happened since I upgraded to precise yesterday. I know the card reader is detected, as 'lsusb' outputs:
jeff@jeff-desktop:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 046d:c00e Logitech, Inc. M-BJ58/M-BJ69 Optical Wheel Mouse Bus 002 Device 003: ID 413c:2005 Dell Computer Corp. RT7D50 Keyboard Bus 002 Device 004: ID 14c4:8000 Bus 001 Device 030: ID 0781:8989 SanDisk Corp. ImageMate 12-in-1 Reader -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/991390 Title: USB devices not automatically mounted Precise 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/devicekit/+bug/991390/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs