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SubjectRe: 2.6.21-rc1: T60 ACPI issues
On Wed, 1 Aug 2007, Michael S. Tsirkin wrote:

> Hi!
> ACPI appears to have been broken with 2.6.23-rc1 on my T60
> Userspace from ubuntu dapper.

(Whereas I'm using a T43p with openSUSE 10.2.)

>
> 1. During boot, I see a lot of messages like this:
> [ 41.034204] acpi LNXSYSTM:00: uevent: unsupported action-string; this will be ignored in a future kernel version

(I've not seen those.)

>
> 2. Pressing Fn/F4 does not trigger suspend to ram
> This normally triigers ACPI event which triggers suspend to RAM on Ubuntu
> (echo mem > /sys/power/state works)

I'll bet this is your CONFIG_THINKPAD_ACPI_INPUT_ENABLED=y.
I got the same, see my "THINKPAD_ACPI_INPUT_ENABLED seems regressive"
mail to Henrique and lkml an hour ago.

>
> 3. After suspend to RAM, system wakes up but laptop's screen is blank,
> switching VTs etc does not help.
> External screen wakes up OK though.
> dmesg output from boot attached.

(I've not had that.)

Hugh
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