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Message #152486
[Bug 1482435] Re: Wi-Fi not working after Sleep
Gilbert Dion, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1482435
** Package changed: linux-lts-utopic (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1482435
Title:
Wi-Fi not working after Sleep
Status in linux package in Ubuntu:
Incomplete
Bug description:
After sleep mode, the Wi-Fi chip is not recognized by the kernel
module and therefore is not available. It is recognized after a reboot
or after hibernating though.
I have tried a lot of possibilities. Someone suggested the following command:
sudo nmcli nm sleep false
But it does nothing.
This has nothing to do with the hardware Wi-Fi switch. I know its
purpose and tried switching on and off.
Also, the output of the command nmcli nm, nmcli c and nmcli d after
coming back from sleep mode is showed below. Notice nmcli d shows no
wlan1 device (which is how my wireless device is identified normally).
mario@mario-Compaq-Presario-laptop:~$ nmcli nm
ÉTAT FONCT. ÉTAT MATÉRIEL-WIFI WIFI MATÉRIEL-WWAN WWAN
actif connecté activé activé activé activé
mario@mario-Compaq-Presario-laptop:~$ nmcli c
NOM UUID TYPE TIMESTAMP-REAL
Connexion filaire 1 cdf0b2eb-484c-4cb9-85fe-ca2d4b717505 802-3-ethernet mar 04 aoû 2015 23:06:56 EDT
JeLisVosCourriels dcefe472-5b7b-4ae5-9066-0acdf1aec24b 802-11-wireless mar 04 aoû 2015 22:57:57 EDT
mario@mario-Compaq-Presario-laptop:~$ nmcli d
PÉRIPHÉRIQUE TYPE ÉTAT
eth1 802-3-ethernet connecté
Last but not least, the output of dmesg | grep iwl (after sleep) is
[ 693.890526] iwl3945 0000:01:00.0: bad EEPROM signature,EEPROM_GP=0x00000007
[ 693.890532] iwl3945 0000:01:00.0: EEPROM not found, EEPROM_GP=0xffffffff
[ 693.890563] iwl3945 0000:01:00.0: Unable to init EEPROM
[ 693.890713] iwl3945: probe of 0000:01:00.0 failed with error -2
And I think this tells it all.
Ubuntu release 14.04 Ubuntu 14.04.2 LTS
Wi-Fi chip is Intel 3945ABG and module is iwl3945.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-45-generic 3.16.0-45.60~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14
Uname: Linux 3.16.0-45-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Aug 6 19:49:20 2015
InstallationDate: Installed on 2015-07-25 (12 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)
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