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[Georg <1312287@xxxxxxxxxxxxxxxxxx>]

I have the same problem after upgrading to 14.04; the remote just
stopped working. Everything seems to load correctly, but there is no
output from irw or mode2.

⟫ dmesg | grep ttyS
[    0.504063] 00:06: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[    0.505388] 0000:05:00.0: ttyS4 at I/O 0xd000 (irq = 20, base_baud = 115200) is a 16550A
[    0.505468] 0000:05:00.0: ttyS5 at I/O 0xd100 (irq = 20, base_baud = 115200) is a 16550A

⟫ dmesg | grep lirc
[    4.432792] lirc_dev: IR Remote Control driver registered, major 249 
[    4.435963] lirc_serial: module is from the staging directory, the quality is unknown, you have been warned.
[    5.348020] lirc_serial lirc_serial.0: auto-detected active high receiver
[    5.348095] lirc_serial lirc_serial.0: lirc_dev: driver lirc_serial registered at minor = 0

⟫ sudo setserial -a /dev/ttyS0
/dev/ttyS0, Line 0, UART: unknown, Port: 0x03f8, IRQ: 4
        Baud_base: 115200, close_delay: 50, divisor: 0
        closing_wait: 3000
        Flags: spd_normal

⟫ cat /etc/modprobe.d/lirc-serial.conf 
#COM1 equivalent, /dev/ttyS0
options lirc_serial irq=4 io=0x3f8

⟫ ls /dev/lirc*
/dev/lirc0  /dev/lircd

⟫ cat /etc/lirc/hardware.conf
# /etc/lirc/hardware.conf
#
#Chosen Remote Control
REMOTE="Home-brew (16x50 UART compatible serial port)"
REMOTE_MODULES="lirc_dev lirc_serial"
REMOTE_DRIVER=""
REMOTE_DEVICE="/dev/lirc0"
REMOTE_LIRCD_CONF="/usr/share/lirc/remotes/avermedia/lircd.conf.avermediarmtk"
REMOTE_LIRCD_ARGS=""
<and more...>

I have tried the suggestions from Dan above, but to no avail. Both of the following shows nothing:
⟫ irw

⟫ sudo mode2 -d /dev/lircd

The remote itself works, as I can see another device reacting to the
pulses from the the remote. It also worked like a charm in 13.10 before
the upgrade.

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https://bugs.launchpad.net/bugs/1312287

Title:
  lircd start problem

Status in “lirc” package in Ubuntu:
  New

Bug description:
  If no one else is having lircd(8) problems, ignore this bug report and
  I will make a work around for me.  After upgrading from 13.<what-ever-
  current> to 14.04 my IR remote stopped working, no output from irw(1)
  or mode2(1).  After some digging I found it worked right if I started
  lircd(8) with no argument.  Please note the lines below:

  # grep REMOTE_SOCKET /etc/lirc/hardware.conf
  REMOTE_SOCKET=""
  # service lirc start
  # ps -ef | grep lirc
  root      4601  2201  0 11:34 ?        00:00:00 /usr/sbin/lircd --output=/run/lirc/lircd --device=/dev/lirc0
  # irw (does not work)

  (So I set REMOTE_SOCKET to default settings per manual stating what default is)
  # grep REMOTE_SOCKET /etc/lirc/hardware.conf
  REMOTE_SOCKET="/var/run/lirc/lircd"
  # service lirc start
  # ps -ef | grep lirc
  root      4694  2201  0 11:42 ?        00:00:00 /usr/sbin/lircd --output=/var/run/lirc/lircd --device=/dev/lirc0
  (it looks right but)
  # irw (does not work)

  # ps -ef | grep lirc
  root      4694  2201  0 11:42 ?        00:00:00 /usr/sbin/lircd --output=/var/run/lirc/lircd --device=/dev/lirc0
  # service lirc stop
  (copy command from ps output above and past it as a command)
  # /usr/sbin/lircd --output=/var/run/lirc/lircd --device=/dev/lirc0
  # irw (it works)

  (I know this is usually an environment issue so here is my environment before launching the above /usr/sbin/lircd)
  # env
  SHELL=/bin/bash
  TERM=xterm
  OLDPWD=/etc/init.d
  USER=root
  SUDO_USER=dan
  SUDO_UID=1000
  USERNAME=root
  MAIL=/var/mail/root
  PATH=/usr/sbin:/usr/bin:/sbin:/bin
  PWD=/
  LANG=en_US.UTF-8
  SHLVL=1
  SUDO_COMMAND=/bin/bash
  HOME=/home/dan
  LANGUAGE=en_US
  LOGNAME=root
  LESSOPEN=| /usr/bin/lesspipe %s
  SUDO_GID=1000
  DISPLAY=:0.0
  LESSCLOSE=/usr/bin/lesspipe %s %s
  XAUTHORITY=/home/dan/.Xauthority
  _=/usr/bin/env

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.2
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Thu Apr 24 11:03:22 2014
  InstallationDate: Installed on 2013-02-06 (441 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to trusty on 2014-04-24 (0 days ago)
  VarLogDistupgradeTermlog:

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