Re: Devices without power management support: dm0 dm1 (LVM / Device Mapper prevents ACPI Sleep State 3)

[maya%NetBSD.org@localhost]

On Wed, Jan 15, 2020 at 11:42:09AM +0100, Matthias Petermann wrote:
> Hello Maya,
> 
> On 15.01.20 07:55, maya%NetBSD.org@localhost wrote:
> > > 
> > > Since I don't see any of this in the log, I'm not sure at all whether the
> > > code is actually executed. Is it generally the case that all device drivers
> > > are "detached" before entering ACPI Sleep state 3? Or could this be a
> > > special case?
> > 
> > You will need to rebuild the modules, not the kernel.
> > 
> > build.sh .... modules
> > sudo build.sh ... installmodules=/
> > 
> > Is how I usually do it.
> > 
> 
> I hadn't thought of that - thanks for the tip. It works now!
> 
> The X230 correctly enters ACPI sleep state 3 with the change you have
> proposed and wakes up without any functional restrictions.
> 
> How likely is it that the device mapper was only accidentally not taken into
> account in power management, or whether it should deliberately block the
> sleep state for technical reasons?
> 
> If nothing speaks against it, how do we get the patch in syssrc? Should I
> submit a bug report?
> 
> Best wishes
> Matthias
> 

Committed and pulled up to netbsd-9.
http://mail-index.netbsd.org/source-changes/2020/01/16/msg112900.html
http://mail-index.netbsd.org/source-changes/2020/01/21/msg113133.html
Thanks for testing.