mythbuntu-bugs team mailing list archive

[Greg <778296@xxxxxxxxxxxxxxxxxx>]

This bug also affects my system. Everything was working fine with 10.10;
fails with upgrade to 11.04. I'm using a Philips (or NXP) eHome Infrared
Receiver with a Hauppauge RC5 remote.

The short story is that I had to use the devinput driver,
/dev/input/event# device and a new lircd.conf file. Everything is
working 100% with this configuration. There seems to be a bug when using
/dev/lirc0 with the default driver (REMOTE_DRIVER="").

Details of my findings:

Following the various comments that I've read, I modified the
hardware.conf file to remove the driver in REMOTE_DRIVER, and to change
the LOAD_MODULES to false. Note that I've always been using /dev/lirc0
and still using it for this setup. My remote still failed to operate
under this configuration. So, I tried using irrecord. The first line of
the process asks for random button presses, only about 20% of the
buttons on my remote would produce a dot. The second line of the process
then asks for more button presses, now every button would generate a
dot. Finally, it asks for a button name, followed by that button press;
this failed everytime with the message "something went wrong, try
again".

I then tried using the "raw" mode of irrecord "irrecord -f". In this
way, I was able to generate a new lircd.conf file that mostly worked.
I'd say that button presses were about 75% successful. Interestingly, a
button press might fail once but work on a repeat press. It also seemed
to me that button sequences could have been a factor, i.e. "left" button
fails if it came after "9" but it would work if it came after some other
button press. (example only, I didn't dwell on this or document what I
was seeing)

Finally, I read about using the devinput driver. Using this method, I
was able to generate a fully working lircd.conf file, see attached. The
only thing that I don't understand is Jorod's comment above: "The
current problem with trying to use devinput mode is that the lirc
initscript is disabling all the in-kernel decoders, upon which devinput
mode relies to get raw IR scancodes translated into Linux input layer
event keycodes." Do I need to do something different or change
something?

The hex codes in the devinput lircd.conf file are basically the same as
my old working /dev/lirc0 RC5 conf file. The difference is that the
address/header portion is treated as common. (add 0x1780 to all of the
devinput values and they match the RC5 codes). It seems that the raw
codes are a mess; I don't understand the exact timing structure here, I
would have expected the the first half or so of all the buttons to be
the same (address, etc) but that is clearly not the case - I'm not
surprized that this method wasn't 100% successful.

** Attachment added: "Working lircd.conf file using /dev/input/event#"
   https://bugs.launchpad.net/ubuntu/+source/lirc/+bug/778296/+attachment/2223858/+files/WORKING_dev-input-event%23_lircd.conf

-- 
You received this bug notification because you are a member of Mythbuntu
Bug Team, which is subscribed to lirc in Ubuntu.
https://bugs.launchpad.net/bugs/778296

Title:
  lirc not working correctly on 2.6.38 kernel

Status in “lirc” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: lirc

  lirc not working correctl y on 2.6.38 kernel. I reverted back to lirc
  not working correctly on 2.6.35 kernel and it starts working. I
  understand that mceusb is now part of kernel driver. So I have
  accordingly changed hardware.conf. I dont see anything on irw or ir-
  keytable -t when i press my remote(s). Tried multiple remotes to see
  the input. I can confirm that there is /dev/lirc0. When I do cat
  /dev/lirc0 and press remote I see garbage spew on the screen.

  My IR Receiver is
  Bus 003 Device 002: ID 0471:0815 Philips (or NXP) eHome Infrared Receiver

  # ir-keytable
  Found /sys/class/rc/rc0/ (/dev/input/event5) with:
          Driver mceusb, table rc-rc6-mce
          Supported protocols: NEC RC-5 RC-6 JVC SONY LIRC
          Enabled protocols: LIRC
          Repeat delay = 500 ms, repeat period = 33 ms

  
  # /etc/lirc/hardware.conf
  #
  #Chosen Remote Control
  REMOTE="Windows Media Center Transceivers/Remotes (all)"
  REMOTE_MODULES="lirc_dev mceusb"
  REMOTE_DRIVER="devinput"
  REMOTE_DEVICE="/dev/input/event5" (found using ir-keytable)
  REMOTE_SOCKET=""
  REMOTE_LIRCD_CONF="lircd.conf" (Copy /usr/share/lirc/remotes/devinput/lircd.conf.devinput to /etc/lirc/lircd.conf)
  REMOTE_LIRCD_ARGS=""

  #Chosen IR Transmitter
  TRANSMITTER=""
  TRANSMITTER_MODULES=""
  TRANSMITTER_DRIVER=""
  TRANSMITTER_DEVICE=""
  TRANSMITTER_SOCKET=""
  TRANSMITTER_LIRCD_CONF=""
  TRANSMITTER_LIRCD_ARGS=""

  #Enable lircd
  START_LIRCD="true"

  #Don't start lircmd even if there seems to be a good config file
  #START_LIRCMD="false"

  #Try to load appropriate kernel modules
  LOAD_MODULES="true"

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: lirc 0.8.7-0ubuntu4.1
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Fri May  6 01:12:38 2011
  InstallationMedia: Mythbuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: lirc
  UpgradeStatus: Upgraded to natty on 2011-05-02 (3 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lirc/+bug/778296/+subscriptions