From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>, Tom Lanyon <tom@oneshoeco.com>
Cc: "Linux ACPI" <linux-acpi@vger.kernel.org>,
"Linux PM" <linux-pm@vger.kernel.org>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Darren Hart" <dvhart@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
"Mika Westerberg" <mika.westerberg@linux.intel.com>,
"Mario Limonciello" <mario.limonciello@dell.com>,
"Jérôme de Bretagne" <jerome.debretagne@gmail.com>,
"Zheng, Lv" <lv.zheng@intel.com>,
"Linus Torvalds" <torvalds@linux-foundation.org>
Subject: Re: [PATCH] ACPI / sleep: EC-based wakeup from suspend-to-idle on recent systems
Date: Tue, 27 Jun 2017 09:14:41 -0700 [thread overview]
Message-ID: <1498580081.7952.91.camel@linux.intel.com> (raw)
In-Reply-To: <1908911.91yT2N6t2f@aspire.rjw.lan>
On Tue, 2017-06-27 at 17:03 +0200, Rafael J. Wysocki wrote:
> On Tuesday, June 27, 2017 03:50:33 PM Tom Lanyon wrote:
> >
> > On 23 June 2017 at 12:40, Linus Torvalds <torvalds@linux-foundation
> > .org> wrote:
> > >
> > > On Thu, Jun 22, 2017 at 4:56 PM, Rafael J. Wysocki <rjw@rjwysocki
> > > .net> wrote:
> > > >
> > > >
> > > > Some recent Dell laptops, including the XPS13 model numbers
> > > > 9360 and
> > > > 9365, cannot be woken up from suspend-to-idle by pressing the
> > > > power
> > > > button which is unexpected and makes that feature less usable
> > > > on
> > > > those systems. [ details removed ]
> > >
> > > This looks much more reasonable and more likely to work on future
> > > machines too.
> > >
> > > Of course, who knows what broken machines it will cause problems
> > > on,
> > > but it sounds like the code now does what it's supposed to and
> > > what
> > > Win10 does, so maybe it JustWorks(tm). Hah.
> >
> > Rafael - thanks for your efforts on this.
>
> You're welcome!
>
> >
> > I wanted to provide some feedback from some quick and naive tests
> > on
> > an XPS 13 9365 in case it was useful, as it seems like there's
> > still
> > some way to go before matching Win10's behaviour.
> >
> > Linux idling w/ screen ON => 17% battery drain per hour.
> > Linux idling w/ screen OFF => 12% battery drain per hour.
> > Linux during s2idle => 6% battery drain per hour.
> > Win10 during sleep => 1% battery drain per hour.
> >
> > where Linux = 4.12-rc6 + the latest patch from your acpi-pm-test
> > branch.
> >
> > So whilst s2idle halves the battery drain compared to the machine
> > staying powered on, it's still significantly more draining than
> > Win10.
>
> Thanks for the data.
>
> >
> > Let me know if there's any more useful analysis I can do.
>
> I would carry out s2idle under turbostat to see how much PC10
> residency is
> there while suspended. That may be a significant factor.
>
> Most likely there is a device preventing the SoC from reaching its
> deepest
> low-power states under Linux on your system and it needs to be
> identified
> and dealt with.
Also make sure that you have no FW loading error for i915.
#dmesg | grep i915
It will display that Guc FW was loaded etc..
The latest FW can be downloaded from
https://01.org/linuxgraphics/downloads/firmware
If you don't see PC10 residency, we can try something more.
Thanks,
Srinivas
>
> Thanks,
> Rafael
>
next prev parent reply other threads:[~2017-06-27 16:14 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-26 21:21 [PATCH 0/5] PM / sleep: Support power button wakeup from S2I on recent Dell laptops Rafael J. Wysocki
2017-04-26 21:22 ` [PATCH 1/5] PM / wakeup: Integrate mechanism to abort transitions in progress Rafael J. Wysocki
2017-04-26 21:23 ` [PATCH 2/5] ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle Rafael J. Wysocki
2017-04-26 21:24 ` [PATCH 3/5] ACPI / sleep: EC-based wakeup from suspend-to-idle on Dell systems Rafael J. Wysocki
2017-04-27 14:47 ` Mario.Limonciello
2017-04-27 22:26 ` Rafael J. Wysocki
2017-05-04 7:58 ` Zheng, Lv
2017-05-04 14:23 ` Rafael J. Wysocki
2017-05-04 14:26 ` Rafael J. Wysocki
2017-05-05 0:36 ` Zheng, Lv
2017-04-26 21:24 ` [PATCH 4/5] platform: x86: intel-vbtn: Wake up the system from suspend-to-idle Rafael J. Wysocki
2017-04-26 21:27 ` [PATCH 5/5] platform: x86: intel-hid: " Rafael J. Wysocki
2017-05-04 14:33 ` [PATCH 0/5] PM / sleep: Support power button wakeup from S2I on recent Dell laptops Rafael J. Wysocki
2017-05-31 23:23 ` [PATCH 0/3] ACPI " Rafael J. Wysocki
2017-05-31 23:24 ` [PATCH 1/3] platform: x86: intel-vbtn: Wake up the system from suspend-to-idle Rafael J. Wysocki
2017-05-31 23:26 ` [PATCH 2/3] platform: x86: intel-hid: " Rafael J. Wysocki
2017-05-31 23:27 ` [PATCH 3/3] ACPI / sleep: EC-based wakeup from suspend-to-idle on recent Dell systems Rafael J. Wysocki
2017-06-05 15:18 ` Mario.Limonciello
2017-06-05 20:51 ` Rafael J. Wysocki
2017-06-01 10:43 ` [PATCH 0/3] ACPI / sleep: Support power button wakeup from S2I on recent Dell laptops Andy Shevchenko
2017-06-01 11:50 ` Tom Lanyon
2017-06-01 14:59 ` Rafael J. Wysocki
2017-06-02 1:06 ` Tom Lanyon
2017-06-02 23:16 ` Rafael J. Wysocki
2017-06-01 15:00 ` Rafael J. Wysocki
2017-06-19 21:48 ` [PATCH v2 " Rafael J. Wysocki
2017-06-19 21:49 ` [PATCH v2 1/3] platform: x86: intel-vbtn: Wake up the system from suspend-to-idle Rafael J. Wysocki
2017-06-19 21:51 ` [PATCH v2 2/3] platform: x86: intel-hid: " Rafael J. Wysocki
2017-06-19 21:53 ` [PATCH v2 3/3] ACPI / sleep: EC-based wakeup from suspend-to-idle on recent Dell systems Rafael J. Wysocki
2017-06-19 23:37 ` Zheng, Lv
2017-06-19 23:46 ` Rafael J. Wysocki
2017-06-21 1:13 ` Zheng, Lv
2017-06-20 0:07 ` Linus Torvalds
2017-06-20 1:13 ` Rafael J. Wysocki
2017-06-20 2:00 ` Linus Torvalds
2017-06-20 21:16 ` Rafael J. Wysocki
2017-06-21 1:13 ` Zheng, Lv
2017-06-22 23:56 ` [PATCH] ACPI / sleep: EC-based wakeup from suspend-to-idle on recent systems Rafael J. Wysocki
2017-06-23 2:40 ` Linus Torvalds
2017-06-27 5:50 ` Tom Lanyon
2017-06-27 6:47 ` Andy Shevchenko
2017-06-27 10:54 ` Tom Lanyon
2017-06-27 11:10 ` Mario.Limonciello
2017-06-27 15:03 ` Rafael J. Wysocki
2017-06-27 16:14 ` Srinivas Pandruvada [this message]
2017-07-06 11:41 ` Tom Lanyon
2017-07-07 0:38 ` Srinivas Pandruvada
2017-06-23 6:30 ` Zheng, Lv
2017-06-23 12:13 ` Rafael J. Wysocki
2017-06-23 12:27 ` Rafael J. Wysocki
2017-06-23 13:15 ` [PATCH v2] " Rafael J. Wysocki
2017-06-23 15:37 ` Mario.Limonciello
2017-06-23 16:06 ` Srinivas Pandruvada
2017-06-23 18:01 ` Mario.Limonciello
2017-06-24 0:43 ` Rafael J. Wysocki
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