[Bug 1585863] Re: WiFi malfunction after suspend & resume stress - sudo wpa_cli scan required to fix it.
auspex
auspex at pointerstop.ca
Fri Aug 5 02:05:00 UTC 2016
You can try having the script do "modprobe -r" and "modprobe" on your wifi
module. That should always work, but seemed like overkill in my case. In
any case, these are workarounds, not fixes.
On 4 Aug 2016 6:01 a.m., "Aleve Sicofante" <asicofante at gmail.com> wrote:
> @auspex: Your script doesn't work here. I just created it and gave it
> execution permissions, rebooted and tried a sleep/resume cycle. No dice.
>
> I'm just amazed no one from Canonical is chiming in. This has been
> happening from the very moment I installed 16.04 on its release day and
> it happens in the two laptops I use (Lenovo T400 and Dell Studio 1537,
> both with Intel wireless cards). It's so obvious I didn't even try to
> file a bug understanding it would be naturally solved by 16.04.1 at the
> latest... I'm truly amazed in the worst sense.
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (1448555).
> https://bugs.launchpad.net/bugs/1585863
>
> Title:
> WiFi malfunction after suspend & resume stress - sudo wpa_cli scan
> required to fix it.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/network-manager/+bug/1585863/+subscriptions
>
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https://bugs.launchpad.net/bugs/1585863
Title:
WiFi malfunction after suspend & resume stress - sudo wpa_cli scan
required to fix it.
Status in NetworkManager:
New
Status in OEM Priority Project:
New
Status in OEM Priority Project xenial series:
New
Status in network-manager package in Ubuntu:
Confirmed
Bug description:
Description: Ubuntu Yakkety Yak (development branch)
Release: 16.10
Packages:
libnm-glib-vpn1:amd64 1.2.2-0ubuntu2
libnm-glib4:amd64 1.2.2-0ubuntu2
libnm-util2:amd64 1.2.2-0ubuntu2
libnm0:amd64 1.2.2-0ubuntu2
network-manager 1.2.2-0ubuntu2
Reproduce steps:
1. Install fwts by `sudo apt-get install fwts`.
2. Run the suspend & resume stress test.
sudo fwts s3 --s3-multiple=30 --s3-min-delay=5 --s3-max-delay=5 --s3-delay-delta=5
Expected result:
The WiFi still functioned.
Actual result:
The WiFi can not connect to any access point and we have to execute `sudo wpa_cli scan` manually to make it work again.
P.S. Ubuntu 16.04 also has the same issue.
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