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[Jarod Wilson <jarod@xxxxxxxxxxxx>]

So three problems here:

1) During resume, we see this:
kernel: [   29.950131] usb 4-3: USB disconnect, address 2

This is your mceusb device. For some reason, your USB chipset isn't
being suspended correctly, and its causing a full disconnect and
reconnect of at least mceusb device. That's bad (and not mceusb's
fault).


2) lirc is being restarted, rather than simply left running. The lirc daemon should be able to handle a lirc device coming and going from underneath it without requiring a restart like this, best as I can recall. But I think its some Ubuntu "feature-add" udev rule that restarts lircd when a new device is connected -- see item #1, the reconnect looks like a new device being connected.


3) When lirc is being restarted, its calling show_protocols before everything is actually wired up, which is indeed the bug I referenced earlier that a fix for has already been sent upstream.

kernel: [   30.053825] Pid: 1693, comm: cat Tainted: P        W   2.6.38-10-generic #44-Ubuntu System manufacturer System Product Name/E35M1-I DELUXE
kernel: [   30.053832] RIP: 0010:[<ffffffffa03d76e7>]  [<ffffffffa03d76e7>] show_protocols+0xf7/0x130 [rc_core]


At this point, nothing more that I can do. The fix for #3 was sent upstream and the stable team cc'd, so in theory, that patch will eventually make it into a stable series kernel and then into an Ubuntu kernel. Item #2 requires someone in Ubuntu-land who knows better what's going on to evaluate, and #1, not sure, probably requires someone in usb-land upstream to fix suspend and resume with your particular usb chipset.

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https://bugs.launchpad.net/bugs/789819

Title:
  Lirc mceusb resume problem

Status in “lirc” package in Ubuntu:
  New

Bug description:
  Binary package hint: lirc

  Dear All

  I've XBMC 10.1 running on Ubuntu 11.04. I'm using a mceusb dongle

  I've installed lirc and my harmony remote works fine.

  The main problem is after the suspend the remote is not able to resume
  the pc and if I manually do it lirc is not working anymore.

  with ubuntu 10.10 the problem was solved using the following howto:

  http://wiki.xbmc.org/?title=Automati..._resume_script

  but it looks like it's not working on 11.04.

  I've tried to:

  1. stop lirc
  2. rmmod --force lirc_dev
  3. rmmod --force mceusb
  but it looks like I ca't "ERROR resource busy" or sometime the command hang.

  Thank you

  L.

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