Comment 0 for bug 1038373

Similar to bug : https://bugs.launchpad.net/ubuntu/+source/linux/+bug/984552

Saw the following in the logs :

Aug 13 17:22:52 Galois kernel: [32696.796323] iwlwifi 0000:02:00.0: restoring config space at offset 0x1 (was 0x100006, writing 0x100406)
Aug 13 17:22:53 Galois kernel: [32700.666488] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
Aug 13 17:22:53 Galois kernel: [32700.673943] iwlwifi 0000:02:00.0: Radio type=0x2-0x0-0x0
Aug 13 17:28:26 Galois kernel: [33033.713985] iwlwifi 0000:02:00.0: Tx aggregation enabled on ra = 20:4e:7f:4a:80:57 tid = 0
Aug 13 17:33:06 Galois kernel: [33313.383975] iwlwifi 0000:02:00.0: Tx aggregation enabled on ra = 20:4e:7f:4a:80:57 tid = 4

When I first wake the computer, or boot the computer, wireless attempts to connect about 15-20 times before finally connecting.

Once connected, speed and latency vary randomly, but mostly on the slow/high side respectively.

When I test my connection speed with a site like speedtest.net, I'll usually get full speed for about 1/2 a sec , then it goes to zero for awhile, then comes back on at full speed a second later or so.

With windows, connected to the same router, none of these problems occur.

I'm using a fresh installation of 12.04.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-29-generic 3.2.0-29.46
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: israel 1806 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xc0710000 irq 46'
   Mixer name : 'Intel PantherPoint HDMI'
   Components : 'HDA:111d76e0,103c1836,00100102 HDA:80862806,80860101,00100000'
   Controls : 22
   Simple ctrls : 10
Date: Fri Aug 17 23:20:22 2012
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=fd1bc443-e71b-43ca-9230-4f9b2a0a8eba
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: Hewlett-Packard HP Pavilion dv4 Notebook PC
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic root=UUID=a27460ed-11ac-45fe-a797-9673550b7bb3 ro splash quiet
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-29-generic N/A
 linux-backports-modules-3.2.0-29-generic N/A
 linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/20/2012
dmi.bios.vendor: Insyde
dmi.bios.version: F.16
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 1836
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 53.3B
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.16:bd06/20/2012:svnHewlett-Packard:pnHPPaviliondv4NotebookPC:pvr078B110000245710000620100:rvnHewlett-Packard:rn1836:rvr53.3B:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion dv4 Notebook PC
dmi.product.version: 078B110000245710000620100
dmi.sys.vendor: Hewlett-Packard