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[Bug 1514316] Re: 0bda:8172 Realtek WiFi works in Live environment but stops after installation

 

jimlovell777, the issue you are reporting is an upstream one. Could you
please report this problem following the instructions verbatim at
https://wiki.ubuntu.com/Bugs/Upstream/kernel to the appropriate venue
(TO Greg Kroah-Hartman and Larry Finger CC driverdev-devel)?

Please provide a direct URL to your newly made report when it becomes
available so that it may be tracked.

Thank you for your understanding.

** Changed in: linux (Ubuntu)
   Importance: Medium => High

** Changed in: linux (Ubuntu)
       Status: Incomplete => Triaged

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https://bugs.launchpad.net/bugs/1514316

Title:
  0bda:8172 Realtek WiFi works in Live environment but stops after
  installation

Status in linux package in Ubuntu:
  Triaged

Bug description:
  I booted my computer using an Ubuntu 15.10 64-bit Desktop live CD  and
  wifi worked no problem. After installing Ubuntu 15.10 to disk,
  wireless no longer works. I can see the wireless device using lsusb
  but it is not an option to use in network-manager, and does not show
  up in /etc/network/interfaces.

  Bus 002 Device 003: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191SU
  802.11n WLAN Adapter

  My computer does not have an airplane mode button. The wireless card
  is not disabled that I can tell or from my own actions.

  WORKAROUND:
  wget http://launchpadlibrarian.net/37387612/rtl8192sfw.bin.gz
  gunzip rtl8192sfw.bin.gz
  sudo mkdir /lib/firmware/RTL8192SU
  sudo mv rtl8192sfw.bin /lib/firmware/RTL8192SU/
  sudo depmod -a or reboot
  sudo service network-manager restart

  After every reboot I have to run "sudo service network-manager
  restart" for wireless to work.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-17-generic 4.2.0-17.21
  ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
  Uname: Linux 4.2.0-17-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER PID ACCESS COMMAND
   /dev/snd/controlC1: portal 1106 F.... pulseaudio
   /dev/snd/controlC0: portal 1106 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Nov 8 23:34:40 2015
  HibernationDevice: RESUME=UUID=72107d2b-667e-4e55-9eab-dfc18a940de3
  InstallationDate: Installed on 2015-11-09 (0 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: Gateway ZX6961
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-17-generic.efi.signed root=UUID=fc9edda2-408b-4a6d-8733-525acc239e95 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-17-generic N/A
   linux-backports-modules-4.2.0-17-generic N/A
   linux-firmware 1.149.2
  RfKill:
  SourcePackage: linux
  StagingDrivers: r8712u
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/22/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P01-B3
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: ZX6961
  dmi.board.vendor: Gateway
  dmi.chassis.type: 13
  dmi.chassis.vendor: Gateway
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP01-B3:bd07/22/2011:svnGateway:pnZX6961:pvr:rvnGateway:rnZX6961:rvr:cvnGateway:ct13:cvr:
  dmi.product.name: ZX6961
  dmi.sys.vendor: Gateway

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