Hi, Thank you for your comment.  Even I upgraded BIOS, nothing
happened;-(

  $ sudo dmidecode
  ...
  BIOS Information
        Vendor: LENOVO
        Version: N10ET33W (1.12 )
        Release Date: 04/06/2015
        Address: 0xE0000
        Runtime Size: 128 kB
        ROM Size: 16384 kB
        Characteristics:
                PCI is supported
                PNP is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                Boot from CD is supported
                Selectable boot is supported
                ACPI is supported
                USB legacy is supported
                BIOS boot specification is supported
                Targeted content distribution is supported
                UEFI is supported
        BIOS Revision: 1.12
        Firmware Revision: 1.11

Let me show the info of dmesg(1) before inserting SD card and after
that:

  $ dmesg >/tmp/dmesg.before
  ...
  (try to insert SD card, then same error dialog is displayed)
  ...
  $ dmesg >/tmp/dmesg.after
  $ diff /tmp/dmesg.before /tmp/dmesg.after 
963a964,975
> [  618.014311] mmc0: new high speed SDHC card at address aaaa
> [  618.034974] Driver 'mmcblk' needs updating - please use bus_type methods
> [  618.035027] mmcblk0: mmc0:aaaa SU04G 3.69 GiB 
> [  618.035834]  mmcblk0: p1
> [  618.321715] mmcblk0: error -110 sending status command, retrying
> [  618.421886] mmcblk0: error -110 sending status command, retrying
> [  618.521944] mmcblk0: error -110 sending status command, aborting
> [  618.922218] mmc0: card aaaa removed
> [  619.943275] mmc0: new high speed SDHC card at address aaaa
> [  619.943432] mmcblk0: mmc0:aaaa SU04G 3.69 GiB 
> [  619.944434]  mmcblk0: p1
> [  620.107101] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some 
> data may be corrupt. Please run fsck.

Of course, this SD card works find on Thinkpad X220 Ubuntu 14.04.  Any
help is very welcome!


** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1466889

Title:
  SD card is not recognized.

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