Asus UL30A-X5 here - Everything worked great with Ubuntu 10.04, and
10.10. Went to 11.04, and on N networks, I'll get full speed (>5MB/sec
briefly, then it drops to ~1MB/sec, and sometimes stalls.
$ uname -a
Linux lap 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC 2011 x86_64
x86_64 x86_64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty
lspci -v -s 02:00.0 |egrep -v 'Serial Number'
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network
Adapter (PCI-Express) (rev 01)
Subsystem: AzureWave Device 1089
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at feaf0000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [60] Express Legacy Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [170] Power Budgeting <?>
Kernel driver in use: ath9k
Kernel modules: ath9k
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https://bugs.launchpad.net/bugs/735171
Title:
driver ath9k is too slow or not responding
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