Re: [PATCH] PCI/ASPM: Add back L1 PM Substate save and restore

[Mika Westerberg <mika.westerberg@linux.intel.com>]

Hi Thomas,

On Thu, Jul 06, 2023 at 09:14:27PM +0200, Thomas Witt wrote:
> On 05/07/2023 22:53, David E. Box wrote:
> > Mika is now out on extended vacation. We still need a solution that will enable
> > the L1 substate save/restore without breaking your system. I'd like to try to
> > get the power consumption lowered on your system while suspended with s2idle.
> > The s0ix self test script will really help to tell us where to start. You can
> > provide the results in the bugzilla.
> > 
> > The other thing we can do is find out why it only breaks under S3. It could be
> > timing related, so I've attached another patch to the bugzilla to test this.
> > 
> > https://bugzilla.kernel.org/attachment.cgi?id=304553
> > 
> > Please let me know if it works. Thanks.
> > 
> > David
> 
> Hi David,
> 
> I tried your patch, and I see no difference from Mika's. Still not coming
> back from suspend.

Thanks for trying that. Did you manage to try out the S0ix script David
suggested? That should show us hopefully what is draining the battery in
s2idle.