not receiving ACPI events in newer kernels - UNSOLVED

mikegpitt · Advocate Joined: 22 May 2004 Posts: 3224

I decided to edit my post to make the description more clear.

I'm having problems getting my system to detect ACPI events with newer kernels. Currently I'm running 2.6.36-tuxonice, and everything works fine. I have tried previously to upgrade to 2.6.39, 3.0.3, and just this past weekend 3.2.1, and for each of these my system no longer receives uevents for the ac adapter, battery, laptop lid, and the function keys that control brightness.

I originally configured the kernel using my working 2.6.36 config and running `make oldconfig`, and when this didn't work I built a config from scratch using pappy's kernel seeds.

When booting into these kernels and running `udevadm monitor` or `acpi_listen` I don't get any responses at all when trying to trigger any of these events. I have tried various configurations of ACPI options in the kernel (built in, modules, getting rid of the old /proc event interfaces) and nothing seems to work.

The system does seem to recognize ACPI in general (see post below with debug output), but the events themselves never seem to fire.

Does anyone have ideas what might be wrong?

Here is the ACPI section of my current (non working) 3.2.1 kernel config:

eccerr0r · Posted: Mon Apr 16, 2012 3:42 am Post subject:

What hardware? Did you grab your old config file and use that as a starting point?

I'm using 3.2.1-r2 on my netbook (and most other machines) and acpi events seem to work...

Maybe I'm getting ACPI and udev mixed up... uhoh...
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Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?

mikegpitt · Advocate Joined: 22 May 2004 Posts: 3224

I originally used my old config as the basis of the new kernel config, but since that didn't work I configured from scratch, and had the same issue (see above).

My laptop is just a standard Intel OEM bundle. I think that that ACPI events are reported by `udevadm monitor`... are ACPI events handled by udev these days?

This is my hardware as reported by lspci, although I'm fairly certain this must be some kernel configuration issue.

mikegpitt · Advocate Joined: 22 May 2004 Posts: 3224

I recompiled the kernel with acpi debug support, but it didn't shed much light. The interesting thing is that the kernel sees all the appropriate buttons, but there are still no uevents triggered by udev/kernel.

mikegpitt · Advocate Joined: 22 May 2004 Posts: 3224

Some additional debug information from acpitool:

albatroz · Posted: Mon Oct 22, 2012 5:00 pm Post subject:

Hi, I'm having the exact same issue, did you find a solution for these problem?
cpuinfo

dmpogo · Advocate Joined: 02 Sep 2004 Posts: 3468 Location: Canada

Guys, we still did not get a clear understanding what hardware it is. Many laptops (like thinkpads, toshibas) have separate platform dependent kernel settings that need to be enabled for ACPI to be properly handled. These settings are under Device Drivers/x86 Platform Specific Device Drivers

Quoti · Posted: Mon Aug 05, 2013 7:22 am Post subject:

Same issue here. I have a Clevo M720T based notebook and there are no specific options for that one. The thing is, ACPI-events work fine under 2.6.38 but not under any newer kernel.