I can confirm this behaviour on a Dell Studio XPS 13 with the same Atheros card:
06:00.0 Network controller [0280]: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) [168c:002a] (rev 01)
THis computer is running Ubuntu 9.10 with all updates:
Linux tak-xps 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 17:01:44 UTC 2009 x86_64 GNU/Linux
/tomas
I can confirm this behaviour on a Dell Studio XPS 13 with the same Atheros card:
06:00.0 Network controller [0280]: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) [168c:002a] (rev 01)
THis computer is running Ubuntu 9.10 with all updates:
Linux tak-xps 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 17:01:44 UTC 2009 x86_64 GNU/Linux
/tomas