Dell D620 - keyboard and mouse freeze sometimes on wake from suspend.

[archiesteel]

I connected to my laptop via SSH after it happened again, and looking at the dmesg output I was able to spot these two suspicious candidates:

[20840.484000] i8042 kbd 00:06: resuming
[20840.484000] pnp: Device 00:06 does not support activation.
[20840.484000] i8042 aux 00:07: resuming
[20840.484000] pnp: Device 00:07 does not support activation.

It seems that the i8042 controller is part of the serio_raw kernel module on Feisty, though trying to stop and restart this module have not help...I'm going to try whitelisting it and see how it goes.

Incidentally, I found this thread (dated from April) on the Linux Kernel Mailing List about resume problems that mentions the i8042 driver:

http://lkml.org/lkml/2007/4/15/81

If this is a kernel issue, let's hope that a Ubuntu backport of the latest kernel will be available soon, because it's not going to be easy to fix without recompiling (and for some here that may not be an option).

[archiesteel]

Never mind...I get those messages in dmesg even when the keyboard and touchpad work on resume, so I doubt this is related.

Sorry for the false hopes...I'll post again if I actually find something.

[chele]

Originally Posted by archiesteel No love, ...I'm a bit lost as to what to try next...

https://wiki.ubuntu.com/DebuggingKernelSuspend

[hpklett]

Same computer, same problem. Fix here:

https://bugs.launchpad.net/ubuntu/+s...ort/+bug/23497

I wasn't able to install the package listed, but I looked at the patch and made the changes. The result was bizarre, but then I noticed his note about priority right below the patch. Changing 80 to 40 in the filename as he suggested did the trick.

Summary:
As root, create the following files:

/etc/acpi/resume.d/40-i8042-input.sh

#!/bin/sh

# Rebind the AT keyboard interface.
if [ -f /sys/bus/platform/drivers/i8042/bind ]; then
  echo -n "i8042" > /sys/bus/platform/drivers/i8042/bind
fi

/etc/acpi/suspend.d/20-i8042-input.sh

#!/bin/sh

# Unbind the AT keyboard interface.
if [ -f /sys/bus/platform/drivers/i8042/unbind ]; then
  echo -n "i8042" > /sys/bus/platform/drivers/i8042/unbind
fi

Set them as executable and you're good to go.

[budhe888]

Wow that worked, thank you!

One small thing however... now whenever I resume, the computer is not locked anymore, it comes up right into my session without having to enter a password (whereas before, it came up on a password entry screen, but with the inputs locked).

It's not a huge deal. Again, thanks.

[budhe888]

disregard that last post. It works fine.

[sgarman]

hpklett, thank you SO much for posting this info! I have tried it and it's working so far. Kind of hard to tell for sure given that it's an intermittent problem, but from the Launchpad notes, I think this should do it.

Many thanks!

Scott

[sgarman]

I'm running Hardy on my D620 and would like to note that the fixes mentioned above will not work. I've been perplexed for a while that I've ran into this problem again even though I thought I had a workaround for it. The /etc/acpi/suspend.d and resume.d scripts are no longer run, as Hardy uses the pm-utils package. See the following bugs for more info:

https://bugs.launchpad.net/ubuntu/+s...nux/+bug/83243

https://bugs.launchpad.net/ubuntu/+s....20/+bug/99755

Scott

[sgarman]

Originally Posted by sgarman I'm running Hardy on my D620 and would like to note that the fixes mentioned above will not work. I've been perplexed for a while that I've ran into this problem again even though I thought I had a workaround for it. The /etc/acpi/suspend.d and resume.d scripts are no longer run, as Hardy uses the pm-utils package.

Okay, I finally read up on how pm-utils works, and here is a solution that should work with Hardy.

Create the following file: /etc/pm/sleep.d/25i8042

#!/bin/bash

case "$1" in
	hibernate|suspend)
		# Unbind the AT keyboard interface.
		if [ -f /sys/bus/platform/drivers/i8042/unbind ]; then
			echo -n "i8042" > /sys/bus/platform/drivers/i8042/unbind
		fi
		;;
	thaw|resume) 
		# Rebind the AT keyboard interface.
		if [ -f /sys/bus/platform/drivers/i8042/bind ]; then
			echo -n "i8042" > /sys/bus/platform/drivers/i8042/bind
		fi
		;;
	*)
		;;
esac

exit $?

Make sure this file is executable. There is no need to reboot your computer - your next suspend should work. Please let me know if this works for anyone else.

Scott

[ryuko2002]

Last character is a "?". Is it right? I just created the file, let's see if it works.