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[Ubfan <879120@xxxxxxxxxxxxxxxxxx>]

Ubuntu 14.04.1 using the open source firmware in /lib/firmware/b43-open,
without the /lib/firmware/b43 files no longer displays the 60 second
delay on shutdown (on the same hardware with the original problem).
Looks like this has been fixed sometime in the last two years.

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https://bugs.launchpad.net/bugs/879120

Title:
  11.10 shutdown delay of 1 min when using the open source Broadcom
  firmware

Status in “b43-fwcutter” package in Ubuntu:
  Invalid

Bug description:
  The Broadcom 4311/12 wireless chips require firmware when using the b43 driver.
  This firmware is available from Broadcom (which is put into /lib/firmware/b43)
  or as open source (which is put into /lib/firmware/b43-open).  Either firmware
  works, but when the proprietary Broadcom firmware is not present in .../b43,
  shutdown takes an extra minute, after the log file line "could not find
  .../b43/ucode5.fw".  After a minute, shutdown completes normally.
  Adding in the Broadcom firmware lets shutdown proceed without the minute
  delay.  This behavior is new with the 11.10 release.

  Note the below udev items from /var/log/udev are probably the cause of this
  problem. 
  ...
  KERNEL[18.445953] remove   /devices/pci0000:00/0000:00:02.0/0000:01:00.0/ssb0:0$
  UDEV_LOG=3
  ACTION=remove
  DEVPATH=/devices/pci0000:00/0000:00:02.0/0000:01:00.0/ssb0:0/firmware/ssb0:0
  SUBSYSTEM=firmware
  FIRMWARE=b43/ucode5.fw
  TIMEOUT=60
  ASYNC=0
  SEQNUM=1822
  .....
  and many other FIRMWARE=b43/...fw  paragraphs

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