resume from disk breaks sound and thinkad buttons on IBM thinkpad R40

[sanktnelson]

Binary package hint: linux-source-2.6.20

I am running current feisty on an IBM thinkpad R40 (2722-B3g) and after resuming from suspend to disk, sound and all special thinkpad buttons (volume control, screen brightness, suspend, switch graphics output, volume up/down, mute, thinklight) stop working, which is weird, because all the buttons also worked completely without OS support. Suspend to RAM works fine (until I do suspend-to-disk once, then the button is not accepted anymore). Sound just doesn't play but all the devices and mixers and so on still seem to be there, at least no application is complaining.

There is another bug-report which mentions sound not working on a thinkpad after resume, but I'm filing this as separate, since the buttons are not mentioned there, so I'm not sure it's related.

[sko (sebastianus13)]

I have the same problem and can confirm this for an IBM Thinkpad R40 (Type 2723).
After hibernate no sound and no "thinkpad buttons", ACPI-Button events (?).

But "Suspend to RAM" does not work. Sometimes the computer goes into suspend
mode but after wake up the screen stays black. One time it woke up but it didn't accept
my password and the console log complained about "dead device" /dev/sda. (I do
not remember the correct log but it looked like problems with the harddisk).

[sanktnelson (launchpad-maibaums)]

I marked this as duplicate as there is a working fix in the other bug, although the scpi buttons are not mentioned there

[Launchpad Janitor (janitor)]

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!