linux-kernel - Re: Modern Suspend on Dell Latitude 5285 does not resume

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Message-ID: <87r2xaloin.fsf@ungleich.ch>
Date:   Fri, 21 Jul 2017 00:41:36 +0200
From:   Nico Schottelius <nico.schottelius@...leich.ch>
To:     Mario.Limonciello@...l.com
Cc:     linux-acpi@...r.kernel.org, linux-pm@...r.kernel.org,
        andriy.shevchenko@...ux.intel.com, dvhart@...radead.org,
        linux-kernel@...r.kernel.org, srinivas.pandruvada@...ux.intel.com,
        mika.westerberg@...ux.intel.com, tom@...shoeco.com,
        jerome.debretagne@...il.com, torvalds@...ux-foundation.org,
        lv.zheng@...el.com
Subject: Re: Modern Suspend on Dell Latitude 5285 does not resume


Good evening Mario,

> Currently the patch does not look at anything in the system to default to S2I vs S3.
> This will affect systems that offer S3 and S2I (even if S3 is broken).
>
> Have you configured /sys/power/mem_sleep to s2idle?
> https://github.com/torvalds/linux/blob/master/Documentation/power/states.txt#L35

indeed, after configuring it to s2idle, it works like charm!

Do you have any plans on defaulting to s2idle for machines that do not
properly support s3?

Best,

Nico


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