I uploaded a new kernel, same as the previous one but with extra debug.
Please test this one instead.
http://people.canonical.com/~sforshee/lp1201470/linux-3.10.0-3.12+lp1201470v201307171617/
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attaching 'sudo iw wlan0 scan' output
** Attachment added: 'sudo iw wlan0 scan' output
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1201470/+attachment/3738567/+files/out.txt
** Changed in: linux (Ubuntu Saucy)
Status: Incomplete = Confirmed
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I agree that this particular issue seems to be Intel driver specific.
The Dell related issue feels like a similar symptom resulting from the
same problem, but should be addressed separately.
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@Robbie, can you open a separate bug for the Dell issue?
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https://bugs.launchpad.net/bugs/1201470
Title:
Intel wireless microcode driver failure in Saucy causes disconnects
To manage
I have identified one issue that looks like it's contributing to the
problem. This isn't a kernel bug, but a problem with the data from the
router that causes mac80211 to disconnect from the current AP and roam
to another one. The test kernel linked to below contains a workaround
that _might_
attaching var/log/syslog
** Attachment added: syslog
https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1201470/+attachment/3737622/+files/syslog
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lspci -vnvn output attached
** Attachment added: lspci.output
https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1201470/+attachment/3737623/+files/lspci.output
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If you have a chance, it would also be good to know if v3.11-rc1 also exhibits
this bug. The 3.11-rc1 kernel can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-rc1-saucy/
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Did this issue just start happening in Saucy? Did it also happen in
Raring or other earlier releases?
** Changed in: linux-firmware (Ubuntu Saucy)
Importance: Undecided = High
** Tags added: kernel-key
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Joseph,
So the problem is also occurring with a Precise installed Dell laptop
with a Broadcom card. Feels like the issue is related to multiple
access points with the same SID, and possibly Network Manager related.
** Package changed: linux-firmware (Ubuntu Saucy) = network-manager
(Ubuntu
On Mon, Jul 15, 2013 at 05:16:04PM -, Robbie Williamson wrote:
So the problem is also occurring with a Precise installed Dell laptop
with a Broadcom card. Feels like the issue is related to multiple
access points with the same SID, and possibly Network Manager related.
I'd be very
Thanks for the feedback, Robbie. I'm going to keep a Linux package task
as well, just in case there is anything kernel related.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Saucy)
Importance: Undecided = High
** Changed in: linux
I see nothing here that points to an issue with NetworkManager; although
there are messages about flushing TX queues and how the scan request
can't be initiated.
Is this something that started happening with a new kernel?
** Changed in: network-manager (Ubuntu Saucy)
Status: New =
I suspect a driver or ucode issue based on the logs.
Robbie, can you attach the output of running 'sudo iw wlan0 scan' in the
environment where you're getting this problem?
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