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[Bug 1014992] Re: Ubuntu 12.04, i386, cannot use rfcomm as regular user. Permission denied.


Burkhard Arenfeld, as per http://www.asus.com/Motherboards/P8Z68V_LX/#support an update is available for your BIOS (4105). 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 just provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.

For more on BIOS updates and linux, please see

Thank you for your understanding.

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

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  Ubuntu 12.04, i386, cannot use rfcomm as regular user. Permission

Status in “linux” package in Ubuntu:

Bug description:
  After updating from 8.04 to 12.04 I cannot use rfcomm without sudo.

  I've already added the user  to group 'dialout' .

  Temporary I tried to change udev.rules (KERNEL=="rfcomm[0-9]*", GROUP="dialout", MODE="666")  but this doesn't
  solve the problem so I removed it again.

  Here the commands I used :

  burki@orion:/$ hcitool scan
  Scanning ...
   00:12:6F:08:98:FF	GEO LE-71 00001

  burki@orion:/$ rfcomm connect 1 00:12:6F:08:98:FF
  Can't open RFCOMM device: Permission denied

  burki@orion:/$ ls -l /dev/rfcomm1
  ls: cannot access /dev/rfcomm1: No such file or directory

  burki@orion:/$ groups
  burki adm dialout fax cdrom floppy tape sudo audio dip video plugdev fuse scanner lpadmin netdev sambashare

  burki@orion:/$ sudo rfcomm connect 1 00:12:6F:08:98:FF
  Connected /dev/rfcomm1 to 00:12:6F:08:98:FF on channel 1
  Press CTRL-C for hangup

  In another terminal while connection is running ...

  burki@orion:/$ ls -l /dev/rfcomm1
  crw-rw---- 1 root dialout 216, 1 Jun 19 09:01 /dev/rfcomm1

  burki@orion:/$ UDEV_LOG=debug udevadm test $(udevadm info -q path -n rfcomm1)
  (I've stolen this command from another bug report #570692.  Output is very long. Please see attachment)

  WORKAROUND: sudo chmod u+s /usr/bin/rfcomm

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-25-generic-pae 3.2.0-25.40
  ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
  Uname: Linux 3.2.0-25-generic-pae i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: i386
   /dev/snd/controlC0:  burki      1730 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
   Card hw:0 'PCH'/'HDA Intel PCH at 0xfe500000 irq 56'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:10ec0887,10438444,00100302 HDA:80862805,80862805,00100000'
     Controls      : 49
     Simple ctrls  : 21
  Date: Tue Jun 19 09:15:54 2012
  HibernationDevice: RESUME=UUID=f3e3a302-4042-4fcd-86c5-756ae88e15b8
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
   lo        no wireless extensions.

   eth0      no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-25-generic-pae root=UUID=f791f2d4-8966-47d3-a19d-9b0b649e63ea ro quiet splash vt.handoff=7
   linux-restricted-modules-3.2.0-25-generic-pae N/A
   linux-backports-modules-3.2.0-25-generic-pae  N/A
   linux-firmware                                1.79
   0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/21/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0703
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z68-V LX
  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.:bvr0703:bd10/21/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VLX: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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