Public bug reported:

lspci:
02:02.0 Network controller: Atheros Communications, Inc. AR5212 802.11abg NIC 
(rev 01)

lspci -n:
02:02.0 0280: 168c:0013 (rev 01)

It's MiniPCI on IBM T30, it's surely ABG card, but only B and G is
working.

dmesg:
[   30.929000] ath_rate_sample: 1.2 (0.9.3)
[   30.930000] wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
[   30.930000] wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 
18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
[   30.930000] wifi0: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 
54Mbps
[   30.930000] wifi0: H/W encryption support: WEP AES AES_CCM TKIP
[   30.930000] wifi0: mac 5.6 phy 4.1 radio 4.6
[   30.930000] wifi0: Use hw queue 1 for WME_AC_BE traffic
[   30.930000] wifi0: Use hw queue 0 for WME_AC_BK traffic
[   30.930000] wifi0: Use hw queue 2 for WME_AC_VI traffic
[   30.930000] wifi0: Use hw queue 3 for WME_AC_VO traffic
[   30.930000] wifi0: Use hw queue 8 for CAB traffic
[   30.930000] wifi0: Use hw queue 9 for beacons
[   30.971000] wifi0: Atheros 5212: mem=0xd0200000, irq=11

iwlist ath0 freq :
ath0      23 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Current Frequency=2.462 GHz (Channel 11)

** Affects: Ubuntu
     Importance: Undecided
         Status: Unconfirmed

-- 
Inc. AR5212 802.11abg NIC (rev 01) - works but no 5GHz frequencies ("A" mode 
not recognized by driver)
https://bugs.launchpad.net/bugs/113576
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