Full ACPI support

[Fred]

We currently have full support for ACPI 1.0 and some support for ACPI 2.0.

We should get full support for ACPI 3.0 and also try to get full support for ACPI 4.0a.

ACPI (Advanced Configuration and Power Interface) is an open industry standard that defines common interfaces for hardware recognition, motherboard and device configuration and power management.

[Fred (eldmannen+launchpad)]

http://widefox.pbwiki.com/Hardware#ACPI
It says we do already have ACPI 3 support.

include/acpi/acconfig.h:
/* Version of ACPI supported */
#define ACPI_CA_SUPPORT_LEVEL 3

[Steve Langasek (vorlon)]

None of these packages that you've assigned this bug to care about ACPI support level. This is all handled in the kernel.

And given that the wiki page you link to says we already support ACPI 3.0, I'm not sure what you're asking for.

[Fred (eldmannen+launchpad)]

Last published as "Revision 4.0a", on April 5, 2010.

[madbiologist (me-again)]

ACPI 4.0 introduces ACPI support for USB 3.0.

[Jeremy Foshee (jeremyfoshee)]

Hi Fred,

Please be sure to confirm this issue exists with the latest development release of Ubuntu. ISO CD images are available from http://cdimage.ubuntu.com/releases/ . If the issue remains, please run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 221690

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

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[Fred (eldmannen+launchpad)]

This is like a feature request. Append wishlist.
Not a bug.

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Fred (eldmannen+launchpad)]

Need ACPI 4 support in upstream Linux kernel.

[Fred (eldmannen+launchpad)]

http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=blob;f=drivers/acpi/acpica/acconfig.h#l3

/* Version of ACPI supported */
#define ACPI_CA_SUPPORT_LEVEL 3

It only support ACPI 3, it needs to support ACPI 4.