Public bug reported:
After upgrade from linux kernel 2.6.38-8 to 2.6.38-10 the wifi network
is slow. The wifi card starts to operate at a normal speed, after some
time it slows down to maximum approx. 150 kB/s download speed. If I boot
using the older 2.6.38-8, the wifi network speed remains unchanged even
after long time.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-10-generic 2.6.38-10.46
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: frybort 1534 F.... pulseaudio
CRDA: Error: [Errno 2] Adresář nebo soubor neexistuje
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xe4804000 irq 47'
Mixer name : 'Analog Devices AD1981'
Components : 'HDA:11d41981,103c30c0,00100200
HDA:11c11040,103c1378,00100200'
Controls : 11
Simple ctrls : 9
Date: Mon Jul 18 18:57:10 2011
HibernationDevice: RESUME=UUID=c7fca5d3-8785-4fed-b6e9-956452b7e2c2
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Hewlett-Packard HP Compaq 6510b (KE134EA#AKB)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
LANGUAGE=cs_CZ:en
LANG=cs_CZ.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic
root=UUID=15b5dfa3-f97e-4295-bd8b-dda03f851b9f ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-10-generic N/A
linux-backports-modules-2.6.38-10-generic N/A
linux-firmware 1.52
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 08/09/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68DDU Ver. F.16
dmi.board.name: 30C0
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 71.2E
dmi.chassis.asset.tag: CNU8150QWV
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68DDUVer.F.16:bd08/09/2010:svnHewlett-Packard:pnHPCompaq6510b(KE134EA#AKB):pvrF.16:rvnHewlett-Packard:rn30C0:rvrKBCVersion71.2E:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq 6510b (KE134EA#AKB)
dmi.product.version: F.16
dmi.sys.vendor: Hewlett-Packard
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug natty running-unity
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https://bugs.launchpad.net/bugs/812416
Title:
Intel wifi 3945 slow after kernel upgrade
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