Message in dmesg:
[ 22.308381] ath: Failed to stop TX DMA in 100 msec after killing last frame
[ 22.308447] ath: Failed to stop TX DMA!
---
ApportVersion: 2.12-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: caravena 1670 F.... pulseaudio
/dev/snd/controlC1: caravena 1670 F.... pulseaudio
/dev/snd/pcmC1D0p: caravena 1670 F...m pulseaudio
CRDA:
country CL:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5735 - 5835 @ 40), (N/A, 20)
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87
InstallationDate: Installed on 2013-07-31 (17 days ago)
InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Alpha amd64 (20130724)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
MarkForUpload: True
Package: linux (not installed)
ProcFB:
0 inteldrmfb
1 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.11.0-2-generic root=UUID=0c67119c-ddae-476a-b510-142ec598f691 ro rootflags=subvol=@ quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-2.5-generic 3.11.0-rc5
RelatedPackageVersions:
linux-restricted-modules-3.11.0-2-generic N/A
linux-backports-modules-3.11.0-2-generic N/A
linux-firmware 1.113
Tags: saucy
Uname: Linux 3.11.0-2-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 04/15/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P14AAJ
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 530U3C/530U4C
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
I also see same messages in dmesg. Currently using Ubuntu natty beta 2.6.38-8-generic. Wireless speed is very slow. About 30% of packets are lost using ping: 363/16. 377/2.694 ms
--- 192.168.1.1 ping statistics ---
45 packets transmitted, 31 received, 31% packet loss, time 44086ms
rtt min/avg/max/mdev = 1.163/2.
lspci -vvv
09:00.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01)
Subsystem: D-Link System Inc Device 3a69
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 168, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fbce0000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [40] #80 [0000]
Kernel driver in use: ath9k
Kernel modules: ath9k