kernel-packages team mailing list archive

["stef.baly" <1492850@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

I try for a long time to set-up the wifi for my dell pro venue 11 v7130
(wifi chipset Intel Corporation Wireless 7260). The wifi connection is
perfect until the computer is suspend. After a suspend, even activating
the wifi from network manager is impossible. After suspend even an exit
doesn't reconnect to the wifi connection. It seems that the wifi chipset
is off and it's impossible to wake up.

Recently 15.04 has been update to 4.2 RC8. Nothing new !

A file unload_modules has been created.
/etc/pm/config.d with SUSPEND_MODULES="$SUSPEND_MODULES iwlwifi" without any effect.

sudo service network-manager restart doesn't work too !

Before suspend

@utopie:~$ sudo lshw -C network
*-network
description: Interface réseau sans fil
produit: Wireless 7260
fabriquant: Intel Corporation
identifiant matériel: 0
information bus: pci@0000:01:00.0
nom logique: wlan0
version: 83
numéro de série: 5c:51:4f:d9:2e:75
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.2.0-040200rc8-generic firmware=25.30.13.0 ip=192.168.0.50 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
ressources: irq:49 mémoire:f7d00000-f7d01fff
*-network DÉSACTIVÉ
description: Ethernet interface
identifiant matériel: 1
nom logique: wwan0
numéro de série: 1e:51:e0:b8:e1:da
fonctionnalités: ethernet physical
configuration: broadcast=yes driver=cdc_mbim driverversion=22-Aug-2005 firmware=CDC MBIM link=no multicast=yes

After suspend (no more wifi chipset !).
@utopie:~$ sudo lshw -C network
*-network DÉSACTIVÉ
description: Ethernet interface
identifiant matériel: 1
nom logique: wwan0
numéro de série: 1e:51:e0:b8:e1:da
fonctionnalités: ethernet physical
configuration: broadcast=yes driver=cdc_mbim driverversion=22-Aug-2005 firmware=CDC MBIM link=no multicast=yes

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete

** Attachment added: "capture.png"
   https://bugs.launchpad.net/bugs/1492850/+attachment/4458442/+files/capture.png

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https://bugs.launchpad.net/bugs/1492850

Title:
  Dell pro venue 11 - No wireless connections after sleep

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I try for a long time to set-up the wifi for my dell pro venue 11
  v7130 (wifi chipset Intel Corporation Wireless 7260). The wifi
  connection is perfect until the computer is suspend. After a suspend,
  even activating the wifi from network manager is impossible. After
  suspend even an exit doesn't reconnect to the wifi connection. It
  seems that the wifi chipset is off and it's impossible to wake up.

  Recently 15.04 has been update to 4.2 RC8. Nothing new !

  A file unload_modules has been created.
  /etc/pm/config.d with SUSPEND_MODULES="$SUSPEND_MODULES iwlwifi" without any effect.

  sudo service network-manager restart doesn't work too !

  Before suspend

  @utopie:~$ sudo lshw -C network
  *-network
  description: Interface réseau sans fil
  produit: Wireless 7260
  fabriquant: Intel Corporation
  identifiant matériel: 0
  information bus: pci@0000:01:00.0
  nom logique: wlan0
  version: 83
  numéro de série: 5c:51:4f:d9:2e:75
  bits: 64 bits
  horloge: 33MHz
  fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
  configuration: broadcast=yes driver=iwlwifi driverversion=4.2.0-040200rc8-generic firmware=25.30.13.0 ip=192.168.0.50 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
  ressources: irq:49 mémoire:f7d00000-f7d01fff
  *-network DÉSACTIVÉ
  description: Ethernet interface
  identifiant matériel: 1
  nom logique: wwan0
  numéro de série: 1e:51:e0:b8:e1:da
  fonctionnalités: ethernet physical
  configuration: broadcast=yes driver=cdc_mbim driverversion=22-Aug-2005 firmware=CDC MBIM link=no multicast=yes

  After suspend (no more wifi chipset !).
  @utopie:~$ sudo lshw -C network
  *-network DÉSACTIVÉ
  description: Ethernet interface
  identifiant matériel: 1
  nom logique: wwan0
  numéro de série: 1e:51:e0:b8:e1:da
  fonctionnalités: ethernet physical
  configuration: broadcast=yes driver=cdc_mbim driverversion=22-Aug-2005 firmware=CDC MBIM link=no multicast=yes

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