168c:001c ath5k gain calibration timeout when watching flash video
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned |
Bug Description
i have an Atheros wifi card (ar 5007eg) and since upgrading to lucid and the kernel that came with it (2.6.31-21, i believe), i'm experiencing some very strange wifi issues:
- at first, my wifi was very buggy and i got many "noise floor calibration timeouts" as described in many other bug reports here on launchpad. i was able to fix this and get a relatively stable wifi using the backport-
- however, i still have stability issues with the ath5k driver that can be reproduced in the following way:
1. surf the internet for hours without problems
2. start a flash video with more than just a couple of minutes (5min approx) of length
3. wifi crashes with a bunch of "gain calibration timeout" error messages
4. suspend/resume fixes the wifi connection
5. repeat
what i cant for the life of me figure out is what exactly flash videos have to do with my problem. i can surf webpages without flash videos for hours without problems, i can download hundreds of megabytes smoothly, but when i try to watch a simple flash video on youtube or on megavideo or whatever, it crashes my wifi after a relatively random amount of time. sometimes, my wifi keeps working for 10 or 20 minutes into the video, and sometimes it crashes after only 2 minutes. but in any and all cases, my wifi only crashes when i watch flash videos.
i'm filing this a new bug because a) there seems to be some connection between my wifi problems and flash, and b) i get "gain calibration timeout" errors instead of the many "noise floor calibration timeout" errors described in most other bugs (which i dont get anymore since installing the backport-
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-
Regression: Yes
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.32-22-generic i686
NonfreeKernelMo
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
AplayDevices: aplay: device_list:223: no soundcards found...
Architecture: i386
ArecordDevices: arecord: device_list:223: no soundcards found...
Date: Fri May 14 10:25:08 2010
Lsusb:
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 064e:a101 Suyin Corp. Acer CrystalEye Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Acer Aspire 7520
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
LANG=de_DE.utf8
SHELL=/bin/bash
SourcePackage: linux
dmi.bios.date: 07/19/2007
dmi.bios.vendor: Acer
dmi.bios.version: V1.06
dmi.board.name: Fuquene
dmi.board.vendor: Acer
dmi.board.version: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.
dmi.modalias: dmi:bvnAcer:
dmi.product.name: Aspire 7520
dmi.product.
dmi.sys.vendor: Acer
---
Architecture: i386
DistroRelease: Ubuntu 10.04
NonfreeKernelMo
Package: linux (not installed)
ProcEnviron:
LANG=de_DE.utf8
SHELL=/bin/bash
Tags: lucid
Uname: Linux 2.6.34-999-generic i686
UnreportableReason: The running kernel is not an Ubuntu kernel
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare saned scanner
tags: | removed: regression-potential |
Hi SB,
If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https:/ /wiki.ubuntu. com/KernelMainl ineBuilds . Once you've tested the upstream kernel, please remove the 'needs- upstream- testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs- upstream- testing' text. Please let us know your results.
Thanks in advance.
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