15.04 Regression, Intel 3160 wireless does not connect to wifi

[mexlinux]

Wifi worked perfectly on 14.10, after upgrade to 15.04 It can no longer connect to wifi.

A workaround semi works:
 sudo mv /lib/firmware/iwlwifi-3160-12.ucode /lib/firmware/iwlwifi-3160-10.ucode

I'm not sure why the workaround works, but I hope it can give a hint on where the problem is.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-15-generic 3.19.0-15.15
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: miguel 1710 F.... pulseaudio
 /dev/snd/controlC0: miguel 1710 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri May 1 08:29:32 2015
HibernationDevice: RESUME=UUID=533e6204-092f-49d2-bc58-cd1bcf4536ce
InstallationDate: Installed on 2014-10-25 (188 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: TOSHIBA Satellite S45t-B
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic root=UUID=ffd765af-24a8-421a-b53a-7468c570acdb ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-15-generic N/A
 linux-backports-modules-3.19.0-15-generic N/A
 linux-firmware 1.143
SourcePackage: linux
UpgradeStatus: Upgraded to vivid on 2015-03-29 (33 days ago)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: TOSHIBA
dmi.bios.version: 1.00
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: CA10SU
dmi.board.vendor: TOSHIBA
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnTOSHIBA:bvr1.00:bd04/01/2014:svnTOSHIBA:pnSatelliteS45t-B:pvrPSPN4M-008TM1:rvnTOSHIBA:rnCA10SU:rvrTobefilledbyO.E.M.:cvnTOSHIBA:ct10:cvrToBeFilledByO.E.M.:
dmi.product.name: Satellite S45t-B
dmi.product.version: PSPN4M-008TM1
dmi.sys.vendor: TOSHIBA

[Brad Figg (brad-figg)]

This change was made by a bot.

[penalvch (penalvch)]

mexlinux, thank you for reporting this and helping make Ubuntu better. As per http://support.toshiba.com/support/modelHome?freeText=1200008073 an update to your computer's buggy and outdated BIOS is available (1.40). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report.

Once the BIOS is updated, and the information above is provided, then please mark this report Status Confirmed.

Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]