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[Bug 1009540] Re: 10ec:8185 rtl8180 driver unstable with RTL-8185 IEEE 802.11a/b/g Wireless LAN


effects also  12.04LTS 3.2.0-72-generic-pae

** Also affects: linux
   Importance: Undecided
       Status: New

** No longer affects: linux

** Changed in: linux (Ubuntu)
       Status: Expired => Confirmed

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  10ec:8185 rtl8180 driver unstable with  RTL-8185 IEEE 802.11a/b/g
  Wireless LAN

Status in linux package in Ubuntu:

Bug description:
  The rtl8180 linux kernel driver
  works fine for a while, then slows down, finally disconnects from the
  wireless access point and after some seconds reconnects again. This
  happens to me with the following network card:

  03:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8185 IEEE 802.11a/b/g Wireless LAN Controller (rev 20)
   Subsystem: Realtek Semiconductor Co., Ltd. RTL-8185 IEEE 802.11a/b/g Wireless LAN Controller
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
   Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 64 (8000ns min, 16000ns max), Cache Line Size: 64 bytes
   Interrupt: pin A routed to IRQ 20
   Region 0: I/O ports at e800 [size=256]
   Region 1: Memory at febffc00 (32-bit, non-prefetchable) [size=1K]
   Capabilities: <access denied>
   Kernel driver in use: rtl8180
   Kernel modules: rtl8180

  Might be useful for the driver maintainer to know that at some point I
  had two of these network cards connected and it was almost impossible
  to connect to any network. When I disconnected one of them it was
  possible to send/receive packets but at slow speeds and with
  disconnects every 2 to 5 minutes.

  The ubuntu-bug tool should have caught this, but I'm using
  "3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64
  x86_64 x86_64 GNU/Linux".

  Blacklisting rtl8180 and trying to load rtl8187.ko and r8187se.ko did
  not solve the issue since those modules did not create the wlan0
  interface I was hoping; and lshw showed the hardware as unclaimed.

  Trying to compile the driver from Realtek was very difficult since
  they don't provide it for the latest kernel.

  If there is anything I can do to help solve the bug with rtl8180,
  please let me know. I'm willing to send more information, test
  patches, recompile stuff, etc.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-24-generic 3.2.0-24.39
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  Uname: Linux 3.2.0-24-generic x86_64
  NonfreeKernelModules: fglrx
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
   /dev/snd/controlC2:  pablo      1985 F.... pulseaudio
   /dev/snd/controlC0:  pablo      1985 F.... pulseaudio
   /dev/snd/controlC1:  pablo      1985 F.... pulseaudio
   /dev/snd/pcmC1D0p:   pablo      1985 F...m pulseaudio
   Card hw:0 'SB'/'HDA ATI SB at 0xfe7f4000 irq 16'
     Mixer name	: 'VIA VT1708S'
     Components	: 'HDA:11060397,1043836c,00100000'
     Controls      : 44
     Simple ctrls  : 21
   Card hw:1 'Headset'/'Logitech Logitech Wireless Headset at usb-0000:00:13.0-1, full speed'
     Mixer name	: 'USB Mixer'
     Components	: 'USB046d:0a12'
     Controls      : 4
     Simple ctrls  : 2
   Card hw:2 'HDMI'/'HDA ATI HDMI at 0xfe9e8000 irq 19'
     Mixer name	: 'ATI RS690/780 HDMI'
     Components	: 'HDA:1002791a,00791a00,00100000'
     Controls      : 4
     Simple ctrls  : 1
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Wed Jun  6 11:26:13 2012
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=410a7e48-8da6-4bc4-be34-78fdd23ede76
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: System manufacturer System Product Name
   PATH=(custom, no user)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=c52462b7-75c4-4b78-8942-c1ff7da5540d ro quiet splash vt.handoff=7
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
   0: phy0: Wireless LAN
    Soft blocked: yes
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/15/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2006
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M4A785T-M
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2006:bd04/15/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785T-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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