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MY SD card works fine on windows when I use the inbuilt reader in the laptop. But when I use it with card read (Quantum), it does not work at all.

On a linux machine (where I do not have inbuilt reader ) when I use SD with reader, the icon comes as can be seen:

enter image description here

But when I click on the icon , nothing happens.

Also additional information which might be useful in debugging:

Output of dmesg

usb 3-2.2: new full speed USB device using uhci_hcd and address 6
usb 3-2.2: not running at top speed; connect to a high speed hub
usb 3-2.2: New USB device found, idVendor=1908, idProduct=0222
usb 3-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-2.2: Product: USB2.0 Device
usb 3-2.2: Manufacturer: Generic
usb 3-2.2: SerialNumber: 20101227120006
usb 3-2.2: configuration #1 chosen from 1 choice
scsi4 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 6
usb-storage: waiting for device to settle before scanning
usb-storage: device scan complete
scsi 4:0:0:0: Direct-Access     Generic  Card-Reader      1.05 PQ: 0 ANSI: 2
sd 4:0:0:0: Attached scsi generic sg1 type 0
sd 4:0:0:0: [sdb] Attached SCSI removable disk

Output of fdisk -l

[root@xilinx acme]# fdisk -l

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x000aa6f8

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          64      512000   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              64       60802   487873536   8e  Linux LVM

Disk /dev/dm-0: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

Disk /dev/dm-0 doesn't contain a valid partition table

Disk /dev/dm-1: 4194 MB, 4194304000 bytes
255 heads, 63 sectors/track, 509 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

Disk /dev/dm-1 doesn't contain a valid partition table

Disk /dev/dm-2: 441.7 GB, 441697959936 bytes
255 heads, 63 sectors/track, 53700 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

Disk /dev/dm-2 doesn't contain a valid partition table

This problem started coming when I used SD formatter on windows machine to format the card. Earlier it use to work fine.

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