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[Bug 852190] Re: 7392:7811 Edimax EW-7811Un USB dongle won't connect to networks (rtl8192cu module)

 

mikewhatever, thank you for your comment. Could you please confirm this
issue exists with the latest development release of Ubuntu? ISO images
are available from http://cdimage.ubuntu.com/daily-live/current/ . If
the issue remains, please just make a comment to this.

If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc7

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

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https://bugs.launchpad.net/bugs/852190

Title:
  7392:7811 Edimax EW-7811Un USB dongle won't connect to networks
  (rtl8192cu module)

Status in The Linux Kernel:
  Incomplete
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  The networks around are visible, but when trying to connect, the NM
  repeatedly asks for the password. Connecting to an open network fails
  as well.

  lsusb
  Bus 001 Device 002: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]

  lsmod | grep 8192
  rtl8192cu             103210  0
  rtl8192c_common        75767  1 rtl8192cu
  rtlwifi               110972  1 rtl8192cu
  mac80211              310872  3 rtl8192cu,rtl8192c_common,rtlwifi

  WORKAROUND: Use the drivers downloaded from Realtek's website.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-11-generic 3.0.0-11.18
  ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
  Uname: Linux 3.0.0-11-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 1.23-0ubuntu1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     3937 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfe978000 irq 43'
     Mixer name	: 'Realtek ALC662 rev1'
     Components	: 'HDA:10ec0662,1b352201,00100101'
     Controls      : 20
     Simple ctrls  : 12
  CasperVersion: 1.284
  Date: Fri Sep 16 20:53:04 2011
  LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110915.1)
  MachineType: czc czc
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash --
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-11-generic N/A
   linux-backports-modules-3.0.0-11-generic  N/A
   linux-firmware                            1.60
  RfKill:
   1: phy1: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/16/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 080016
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: czc
  dmi.board.vendor: czc
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: czc
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080016:bd03/16/2010:svnczc:pnczc:pvr1.0:rvnczc:rnczc:rvr1.0:cvnczc:ct3:cvr1.0:
  dmi.product.name: czc
  dmi.product.version: 1.0
  dmi.sys.vendor: czc

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