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Message-ID: <1524005977.31134.15.camel@intel.com>
Date: Tue, 17 Apr 2018 22:59:39 +0000
From: "Pandruvada, Srinivas" <srinivas.pandruvada@...el.com>
To: "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"dgilmore@...hat.com" <dgilmore@...hat.com>,
"Mario.Limonciello@...l.com" <Mario.Limonciello@...l.com>
Subject: Re: issues with suspend on Dell XPS 13 2-in-1
On Mon, 2018-04-16 at 16:07 +0000, Mario.Limonciello@...l.com wrote:
> Hi Dennis,
>
> > -----Original Message-----
> > From: Dennis Gilmore [mailto:dgilmore@...hat.com]
> > Sent: Friday, April 13, 2018 9:03 PM
> > To: linux-kernel@...r.kernel.org; linux-acpi@...r.kernel.org
> > Cc: Limonciello, Mario
> > Subject: issues with suspend on Dell XPS 13 2-in-1
> >
> > Hi All,
> >
> > I have a Dell XPS 13 2-in-1 (9365) that when I supend gets warm and
> > has
> > much shorter than expected battery life, it is about the same as if
> > the
> > laptop just runs. I am currently running Fedora 28 with 4.16.2
> > kernel.
> >
>
> Since battery consumption is quite relative I think It would be good
> if
> you can make a comparable benchmark as this is further discussed.
> Eg fully charge your notebook, pull the plug, suspend it at 100% and
> check the power left after some repeatable amount of time.
>
> > My laptop has NVMe for storage and is configured for AHCI mode in
> > the
> > bios.
> >
> > powertop by default shows
> > > > Bad VM writeback timeout
> >
> > Bad NMI watchdog should be turned off
> > Bad Autosuspend for unknown USB device 1-7 (138a:0091)
> > Bad Runtime PM for I2C Adapter i2c-0 (i915 gmbus dpc)
> > Bad Runtime PM for I2C Adapter i2c-1 (i915 gmbus dpb)
> > Bad Runtime PM for I2C Adapter i2c-2 (i915 gmbus dpd)
> > Bad Runtime PM for PCI Device Intel Corporation
> > Wireless
> > 8265 / 8275
> > Bad Runtime PM for PCI Device Intel Corporation Device
> > 590c
> > Bad Runtime PM for PCI Device Realtek Semiconductor
> > Co.,
> > Ltd. RTS525A PCI Express Card Reader
> > Bad Runtime PM for PCI Device Intel Corporation Device
> > 9d3d
> > Bad Runtime PM for PCI Device Sandisk Corp WD Black
> > NVMe
> > SSD
> > Bad Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP PCI Express Root Port #9
> > Bad Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP Thermal subsystem
> > Bad Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP USB 3.0 xHCI Controller
> > Bad Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP PMC
> > Bad Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP HD Audio
> > Bad Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP PCI Express Root Port #1
> > Bad Runtime PM for PCI Device Intel Corporation Device
> > 9d4b
> > Bad Runtime PM for PCI Device Intel Corporation Xeon
> > E3-
> > 1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem
> > Bad Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP Integrated Sensor Hub
> > Bad Runtime PM for PCI Device Intel Corporation Device
> > 591e
>
> After you've adjusted all of these in powertop, have you compared
> your performance of the battery over sleep (and actually over runtime
> usage really too)?
>
> They should help to allow the CPU to get into deeper states.
>
> After you've made that change you should also see on the "Idle Stats"
> page that your CPU is spending more time in the lower C states
> (hopefully
> more in C9/10).
>
> Srinivas,
>
> Do you know why Runtime PM is defaulting to disabled for all of these
> devices? Is that a default kernel policy problem or a distro policy
> problem?
This is default kernel policy.
I suggest run
#turbostat
then suspend and wake
when wake up let the turbostat collect data for next sampling interval.
We have to see what are PkgC% residencies are?
Thanks,
Srinivas
>
>
> > Good Bluetooth device interface status
> > Good Enable Audio codec power management
> > Good Runtime PM for I2C Adapter i2c-8 (Synopsys
> > DesignWare
> > I2C adapter)
> > Good Autosuspend for USB device Integrated_Webcam_HD
> > [CNFGE16N092020028362]
> > Good Autosuspend for USB device xHCI Host Controller
> > [usb1]
> > Good Autosuspend for USB device xHCI Host Controller
> > [usb2]
> > Good Runtime PM for I2C Adapter i2c-7 (SMBus I801
> > adapter
> > at efa0)
> > Good Autosuspend for unknown USB device 1-2 (8087:0a2b)
> > Good Runtime PM for I2C Adapter i2c-6 (Synopsys
> > DesignWare
> > I2C adapter)
> > Good I2C Device i2c-DLL077A:01 has no runtime power
> > management
> > Good I2C Device i2c-WCOM482F:00 has no runtime power
> > management
> > Good Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP PCI Express Root Port #10
> > Good Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP CSME HECI #1
> > Good Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP Serial IO I2C Controller #1
> > Good Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP SMBus
> > Good Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP PCI Express Root Port #5
> > Good Runtime PM for PCI Device Intel Corporation
> > Sunrise
> > Point-LP Serial IO I2C Controller #0
> > Good Wake-on-lan status for device virbr0-nic
> > Good Wake-on-lan status for device virbr0
> > Good Wake-on-lan status for device wlp60s0
> >
> > Regards
> >
> > Dennis
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