[Bug 518818] Re: ath9k driver not working properly with AR9285

Andres Moreira elkpichico at gmail.com
Thu Sep 9 13:41:21 UTC 2010


I can confirm this bug on Ubuntu 10.04. I've tried:

 * ath9k driver shiped with the kernel
 * compat-wireless from linux-backports
 * compat-wireless from linuxwireless.org (stable and bleeding edge snapshot)

and I've the same problem with each one, poor strength signal (more than
5 o 6 meters, it starts disconnecting frequently, terrible annoying),
and also, disconnects on high network load (streaming HD over youtube
for example).

Also, with the new kernel
 * kernel 2.6.35 (from maverick - Ubuntu kernel team PPA) 
 * compat-wireless (from backports and linuxwireless.org)
the sitatuion were WORST!

Actually I'm using Ndiswrapper, it works much better and much reliable,
but sucks to use ndiswrapper instead of native ones.

Information of my machine:

$ uname -a
Linux XXXXXX 2.6.32-24-generic #42-Ubuntu SMP Fri Aug 20 14:21:58 UTC 2010 x86_64 GNU/Linux

$ lspci -nn | grep Atheros
02:00.0 Network controller [0280]: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)

$ lspci -vv 
....
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
	Subsystem: Hewlett-Packard Company Device 303f
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at d3400000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: ndiswrapper
	Kernel modules: ath9k
...

$ lshw

.......
      *-pci:0
             description: PCI bridge
             product: 5 Series/3400 Series Chipset PCI Express Root Port 1
             vendor: Intel Corporation
             physical id: 1c
             bus info: pci at 0000:00:1c.0
             version: 05
             width: 32 bits
             clock: 33MHz
             capabilities: pci bus_master cap_list
             configuration: driver=pcieport
             resources: irq:29 ioport:3000(size=4096) memory:d3400000-d43fffff ioport:d0400000(size=16777216)
           *-network
                description: Wireless interface
                product: AR9285 Wireless Network Adapter (PCI-Express)
                vendor: Atheros Communications Inc.
                physical id: 0
                bus info: pci at 0000:02:00.0
                logical name: wlan0
                version: 01
                serial: 78:e4:00:05:3c:69
                width: 64 bits
                clock: 33MHz
                capabilities: bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=ndiswrapper+netathwx driverversion=1.55+,12/14/2009,7.7.0.456 ip=192.168.2.157 latency=0 multicast=yes wireless=IEEE 802.11g
                resources: irq:16 memory:d3400000-d340ffff

....

-- 
ath9k driver not working properly with AR9285
https://bugs.launchpad.net/bugs/518818
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