8086:0084 Wireless network is very slow on Lenovo Thinkpad E320

Bug #874221 reported by Richard Widerberg on 2011-10-14
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

The wireless network was working without problem on my Lenovo Thinkpad E320 when using 11.04. Now the wireless network is very slow (unusable) after upgrading to 11.10.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-12-generic-pae 3.0.0-12.20
ProcVersionSignature: Ubuntu 3.0.0-12.20-geneusername-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: i386
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
 /dev/snd/controlC0: ric 1697 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
 Card hw:0 'PCH'/'HDA Intel PCH at 0xd1700000 irq 41'
   Mixer name : 'Intel CougarPoint HDMI'
   Components : 'HDA:14f1506e,17aa21ee,00100000 HDA:80862805,80860101,00100000'
   Controls : 12
   Simple ctrls : 6
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
   Mixer name : 'ThinkPad EC (unknown)'
   Components : ''
   Controls : 1
   Simple ctrls : 1
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Fri Oct 14 15:35:46 2011
HibernationDevice: RESUME=UUID=2bc283f9-6213-4c8d-811b-aac92ee56434
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: LENOVO 12983RG
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-geneusername-pae root=UUID=c165285d-e14f-4d0a-bef5-7782a0321c13 ro quiet splash vt.handoff=7
 linux-restricted-modules-3.0.0-12-generic-pae N/A
 linux-backports-modules-3.0.0-12-generic-pae N/A
 linux-firmware 1.60
SourcePackage: linux
StagingDrivers: rts_pstor mei
UpgradeStatus: Upgraded to oneiric on 2011-10-14 (0 days ago)
dmi.bios.date: 09/16/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8NET29WW (1.13 )
dmi.board.asset.tag: Not Available
dmi.board.name: 12983RG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr8NET29WW(1.13):bd09/16/2011:svnLENOVO:pn12983RG:pvrThinkPadEdgeE320:rvnLENOVO:rn12983RG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 12983RG
dmi.product.version: ThinkPad Edge E320
dmi.sys.vendor: LENOVO

Richard Widerberg (rwiderberg) wrote :
Brad Figg (brad-figg) on 2011-10-14
Changed in linux (Ubuntu):
status: New → Confirmed
Joseph Salisbury (jsalisbury) wrote :

Just curious if you only see this issue when using wireless N protocol?

This may be a duplicate of bug 836250

tags: added: regression-release
Richard Widerberg (rwiderberg) wrote :

Seems to be. When I connect to my iphones shared wifi I can use internet without problem. Tried to find out how to disable wireless N temporarily on my computer but with no luck .

Joseph Salisbury (jsalisbury) wrote :

Comment #23 in bug 836250 has information on how to disable wireless N.

summary: - Wireless network is very slow on Lenovo Thinkpad E320
+ 8086:0084 Wireless network is very slow on Lenovo Thinkpad E320
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