SD card in laptop reader does not work

It could also be this device:

0000:02:06.4 0805: Texas Instruments: Unknown device 8034
 Subsystem: Hewlett-Packard Company: Unknown device 0934
 Flags: bus master, medium devsel, latency 64, IRQ 10
 Memory at c840a000 (32-bit, non-prefetchable) [size=256]
 Memory at c840b000 (32-bit, non-prefetchable) [size=256]
 Memory at c840c000 (32-bit, non-prefetchable) [size=256]
 Capabilities: [80] Power Management version 2

SD readers are generally unsupportable under Linux due to the manufacturers'
unwillingness to open the specification

I'm adding the SD card reader of the Dell Latitude X1 to this list, just for
completeness.

It's either this device:

0000:02:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b3)
        Subsystem: Dell: Unknown device 01a3
        Flags: bus master, medium devsel, latency 168, IRQ 19
        Memory at 50000000 (32-bit, non-prefetchable) [size=4K]
        Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
        Memory window 0: 50400000-507ff000 (prefetchable)
        Memory window 1: 50800000-50bff000
        I/O window 0: 00004000-000040ff
        I/O window 1: 00004400-000044ff
        16-bit legacy interface ports at 0001

...or this device:

0000:02:01.2 0805: Ricoh Co Ltd: Unknown device 0822 (rev 17) (prog-if 01)
        Subsystem: Dell: Unknown device 01a3
        Flags: bus master, medium devsel, latency 64, IRQ 10
        Memory at dfcfe700 (32-bit, non-prefetchable) [size=256]
        Capabilities: <available only to root>

*** Bug 20322 has been marked as a duplicate of this bug. ***

Nothing we can do about these devices. We can only blame the vendors.

Just for the records:

There is a project that develops a Linux driver for the Secure Digital Host
Controller Interface. They claim that their driver is in a fully functional state.

http://mmc.drzeus.cx/wiki/Linux/Drivers/sdhci

This driver (which claims to be 'fully working'), and which seems to be in the current Dapper kernels (sdhci version 0.8) doesn't work on my HP NW8240.

I'll attach a new dmesg

Can you test with the latest Dapper kernel?

It works now.

Why has this bug been rejected? It is fixed now.

Because it was a WONTFIX in bugzilla. But apparently it was easier to fix than expected :)