Comment 16 for bug 414560

+1 me too - but on an HP dv6 series laptop with an AR9285.

lspci -v output:
08:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network
Adapter (PCI-Express) (rev 01)
        Subsystem: Hewlett-Packard Company Device 3040
        Flags: bus master, fast devsel, latency 0, IRQ 17
        Memory at d1200000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] Message Signalled Interrupts: Mask- 64bit- Queue=0/0Enable-
        Capabilities: [60] Express Legacy Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting <?>
        Capabilities: [140] Virtual Channel <?>
        Capabilities: [160] Device Serial Number 12-14-24-ff-ff-17-15-00
        Capabilities: [170] Power Budgeting <?>
        Kernel driver in use: ath9k
        Kernel modules: ath9k

Kernel I'm running is:
kunal@plutonium:~$ uname -a
Linux plutonium 2.6.31-10-generic #30 SMP Thu Sep 10 13:55:01 IST 2009 x86_64 GNU/Linux

built from http://kernel.ubuntu.com/git/ubuntu/ubuntu-karmic.git on Jaunty.

I've also posted the issues on ath9k-devel mailing list, but not gotten any helpful replies from there.. :(

Maybe, I'll give wireless-testing a try.