wireless takes long time to find networks
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned | ||
wpasupplicant (Ubuntu) |
Triaged
|
Medium
|
Unassigned |
Bug Description
On a Dell Studio 1737 (laptop) with Ubuntu Maverick, linux 2.6.35-25.44, it takes about 25 seconds from the wireless being turned on to being able to find wireless networks. This is really annoying when coming out of suspend, as I have to wait what seems an eternity before I can get online.
I can repeat this bug in two ways: either suspend/resume, which, as best I understand, shuts off the wireless on suspend, then brings it back on resume, or just use the wireless switch on the side of the computer to turn off wireless, then turn it back on. (I think it also does this on bootup, but because I have to spend some time in GDM and then waiting for login to complete, I know of no way to check the time.) Either way, the wireless takes only a second or two to come up, as evidenced by NetworkManager's 'Enable wireless' checkbox become active, but I have to wait 25-26 seconds before NetworkManager can see /any/ wireless networks (there are two in range of the computer).
I also tested this with the latest daily mainline kernel 2.6.38-
=====
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-
Regression: No
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.35-
NonfreeKernelMo
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc700000 irq 46'
Mixer name : 'Intel Cantiga HDMI'
Components : 'HDA:111d7675,
Controls : 20
Simple ctrls : 11
Date: Thu Jan 27 11:16:03 2011
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Dell Inc. Studio 1737
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageV
RfKill:
0: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
dmi.bios.date: 11/25/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0P792H
dmi.board.vendor: Dell Inc.
dmi.board.version: A08
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: Studio 1737
dmi.product.
dmi.sys.vendor: Dell Inc.
Hi zpletan,
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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