Wifi disconnects every few minutes

[Iddo Friedberg]

It seems like the wifi disconnects every few minutes. Disabling network, enabling it causes all networks to disappear. Then "connect to hidden network" will show the dropped network , and reconnect is made possible again. This has been reported as a question on Launchpad: https://answers.launchpad.net/ubuntu/+question/266033

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-21-generic 3.19.0-21.21
ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
Uname: Linux 3.19.0-21-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: idoerg 1344 F.... pulseaudio
 /dev/snd/controlC0: idoerg 1344 F.... pulseaudio
CurrentDesktop: LXDE
Date: Sun Jul 19 16:51:18 2015
HibernationDevice: RESUME=UUID=810a6e8e-9aab-4a6a-98db-82cb0499339b
InstallationDate: Installed on 2015-06-22 (26 days ago)
InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: Dell Inc. Latitude E5450
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-21-generic root=/dev/mapper/lubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-21-generic N/A
 linux-backports-modules-3.19.0-21-generic N/A
 linux-firmware 1.143.1
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/05/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0DCPV1
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd01/05/2015:svnDellInc.:pnLatitudeE5450:pvr01:rvnDellInc.:rn0DCPV1:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E5450
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.2 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-rc3-unstable/

[Iddo Friedberg (iddo)]

I can't do this at the moment, but I added a comment to the people in the question thread if someone might be willing to. https://answers.launchpad.net/ubuntu/+question/266033

[maio (premispezia)]

kernel-bug-exists-upstream

[penalvch (penalvch)]

maio, it will help immensely if you filed a new report via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

[maio (premispezia)]

reported bug for upstream version;
https://bugzilla.kernel.org/show_bug.cgi?id=103681,

[Jim Breen (jimbreen)]

I have this problem too, on my HP 15-AF014AU notebook. I installed 14.04 a couple of days ago, and noticed the WiFi dropping out. I moved to 14.10, which seemed to fix it, but after a few hours it dropped out there too. I'm now on 15.04, and the problem persists.

The dropout is an absolute pain. I'll see how it goes with the hidden-network trip, but if it's unusable I may have to look for a different distro. Probably Debian has same problem.

[Anders Hall (a.hall)]

Can confirm this on two Lenovo x250 computers as well. Dropout occurs often, disabling/enabling network (with keyboard/hardware switch) works most often. Sometimes reboot is required. Occurs on hidden and non-hidden wireless networks.

wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.19.0-30-generic firmware=25.17.12.0 ip=192.168.0.11 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:45 memory:f1000000-f1001fff
  *-network DISABLED
       description: Ethernet interface
       physical id: 1
       logical name: wwan0
       serial: 86:77:7a:57:df:7e
       capabilities: ethernet physical
       configuration: broadcast=yes driver=cdc_mbim driverversion=22-Aug-2005 firmware=CDC MBIM link=no multicast=yes
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 15.04
Release: 15.04
Codename: vivid
Linux boll 3.19.0-30-generic #33-Ubuntu SMP Mon Sep 21 20:58:04 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

[penalvch (penalvch)]

Jim Breen / Anders Hall, it will help immensely if you filed a new report via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

[Jim Breen (jimbreen)]

I'm travelling in Japan at the moment. I'll report it as a bug when I
return in about 10 days.

Jim
On 3 Oct 2015 10:00 pm, "Christopher M. Penalver" <
<email address hidden>> wrote:

> Jim Breen / Anders Hall, it will help immensely if you filed a new report
> via a terminal:
> ubuntu-bug linux
>
> Please feel free to subscribe me to it.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1476050
>
> Title:
> Wifi disconnects every few minutes
>
> Status in linux package in Ubuntu:
> Incomplete
>
> Bug description:
> It seems like the wifi disconnects every few minutes. Disabling
> network, enabling it causes all networks to disappear. Then "connect
> to hidden network" will show the dropped network , and reconnect is
> made possible again. This has been reported as a question on
> Launchpad: https://answers.launchpad.net/ubuntu/+question/266033
>
> ProblemType: Bug
> DistroRelease: Ubuntu 15.04
> Package: linux-image-3.19.0-21-generic 3.19.0-21.21
> ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
> Uname: Linux 3.19.0-21-generic x86_64
> ApportVersion: 2.17.2-0ubuntu1.1
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC1: idoerg 1344 F.... pulseaudio
> /dev/snd/controlC0: idoerg 1344 F.... pulseaudio
> CurrentDesktop: LXDE
> Date: Sun Jul 19 16:51:18 2015
> HibernationDevice: RESUME=UUID=810a6e8e-9aab-4a6a-98db-82cb0499339b
> InstallationDate: Installed on 2015-06-22 (26 days ago)
> InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Release amd64
> (20150422)
> MachineType: Dell Inc. Latitude E5450
> ProcEnviron:
> LANGUAGE=en_US
> PATH=(custom, no user)
> XDG_RUNTIME_DIR=<set>
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-21-generic
> root=/dev/mapper/lubuntu--vg-root ro quiet splash vt.handoff=7
> RelatedPackageVersions:
> linux-restricted-modules-3.19.0-21-generic N/A
> linux-backports-modules-3.19.0-21-generic N/A
> linux-firmware 1.143.1
> SourcePackage: linux
> UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 01/05/2015
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: A05
> dmi.board.name: 0DCPV1
> dmi.board.vendor: Dell Inc.
> dmi.board.version: A00
> dmi.chassis.type: 9
> dmi.chassis.vendor: Dell Inc.
> dmi.modalias:
> dmi:bvnDellInc.:bvrA05:bd01/05/2015:svnDellInc.:pnLatitudeE5450:pvr01:rvnDellInc.:rn0DCPV1:rvrA00:cvnDellInc.:ct9:cvr:
> dmi.product.name: Latitude E5450
> dmi.product.version: 01
> dmi.sys.vendor: Dell Inc.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1476050/+subscriptions
>

[Anders Hall (a.hall)]

Christopher >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1503627 (cannot assign it, not allowed by Launchpad)