Re: Unexpected s2idle mem_sleep preference on ThinkPad X1 Tablet(2016)

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On Thu, Mar 8, 2018 at 4:58 AM, Robin Lee <robinlee.sysu@xxxxxxxxx> wrote:
> Hi!
>
> With "deep" mem_sleep, every thing works well on my ThinkPad X1 Tablet.
> But since commit included in 4.14
> e870c6c87cf9484090d28f2a68aa29e008960c93
> "ACPI / PM: Prefer suspend-to-idle over S3 on some systems",
> the preference is changed to 's2idle'.
>
> 's2idle' seems to work by itself, but does not co-operate with the
> power button and
> gravity sensor. The most annoying thing is that the breathing LED
> light is just shut off at
> s2idle.
>
> Though this can be simply fixed by setting mem_sleep_default=deep in cmd line,
> this breaks user experience for casual Linux user.
>
> So, what information about the machine can I provide to get the
> preference back to 'deep'?
> Or how to fix the LED light issue with s2idle?

Well, we need to figure out what's going on first. :-)

Please open a bug at bugzilla.kernel.org for this issue and assign it
to rjw@xxxxxxxxxxxxx, I'll follow up from there.

Thanks for the report!
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