Re: [Intel-gfx] GemniLake laptops goes power off directly after performing suspend

[Imre Deak]

On Fri, Dec 08, 2017 at 10:31:30AM +0000, Daniel Drake wrote:
> Hi,
> 
> Adding intel-gfx list in case i915 developers can help. Updated summary below.
> 
> On Thu, Dec 7, 2017 at 2:14 AM, Chris Chiu <chiu@xxxxxxxxxxxx> wrote:
> > On Wed, Dec 6, 2017 at 9:34 PM, Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:
> > > On Wed, Dec 6, 2017 at 10:33 AM, Chris Chiu <chiu@xxxxxxxxxxxx> wrote:
> > >> On Wed, Dec 6, 2017 at 5:56 AM, Rafael J. Wysocki <rjw@xxxxxxxxxxxxx> wrote:
> > >>> On Tuesday, December 5, 2017 5:19:03 PM CET Chris Chiu wrote:
> > >>>> On Tue, Dec 5, 2017 at 11:01 PM, Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:
> > >>>> > On Tue, Dec 5, 2017 at 11:32 AM, Chris Chiu <chiu@xxxxxxxxxxxx> wrote:
> > >>>> >>     I have 2 GemniLake laptops from ASUS, named X441MB and X507MA,
> > >>>> >> both go power off after I do "systemctl suspend" on top of kerne head
> > >>>> >> fd6d2e506ce6 (Merge tag 'docs-4.15-fixes' of git://git.lwn.net/linux).
> > >>>> >> I then wipe it out and install Windows RS3 instead, also goes to power
> > >>>> >> off after pressing media key for suspend(S3). Then I installed intel
> > >>>> >> graphic driver with the following version number, Windows has no
> > >>>> >> problem on suspend resume then.
> > >>>> >
> > >>>> > There is a suspend-related fix missing in 4.15-rc at this point, so
> > >>>> > please test 4.14.y or wait for the fix to be merged.
> > >>>>
> > >>>> You mean the suspend-related fix used to exist in 4.14? Could you point me
> > >>>> out which commit it is? Thanks
> > >>>
> > >>> I mean that suspend generally works in 4.14 and is currently broken
> > >>> in 4.15-rc which requires a fix to be applied.  The fix in question is at:
> > >>> https://lkml.org/lkml/2017/11/30/546
> > >>> This is needed due to some changes made in 4.15-rc (with respect to 4.14)
> > >>> that broke resume from suspend to RAM.
> > >>
> > >> I think maybe for GemniLake is a different issue. I tried Ubuntu-4.14.0-11.13
> > >> kernel and 4.13 kernel. Both go power off immediately.
> > >
> > > OK, so yes, this is a different issue.
> > > Is that suspend-to-idle or suspend-to-RAM (ACPI S3)?
> >
> > It's ACPI S3, suspend-to RAM. Due to it power off immediately,
> > difficult for me to collect useful information
> 
> Multiple new Acer and Asus consumer products based on Intel GeminiLake
> N4100/N5000 fail to go into S3 suspend-to-RAM. At the point when you
> would normally expect the system to go into sleep, the computer
> completely powers off.
> 
> The same happens under Windows 10 RS3, until the following Intel
> graphics driver is installed:
> 
>     Package: 530967
>     Intel(R) Graphics Driver: 23.20.16.4849
>     Intel(R) Display Audio Driver: 10.00.00.1
> 
> After installing this driver, Windows can now go into S3 suspend and
> also be resumed. I'm wondering if someone can check with the Windows
> gfx driver developers what this driver does to affect S3 suspend, so
> that we can fix up Linux behaviour.

To check this from the GFX side, could you open a bug at [1]? Please try
suspend/resume without the graphics driver loaded (booting with
nomodeset) and if that works suspend/resume with first setting one of
the test phases in /sys/power/state. Trying the drm-tip branch from [2]
would be also helpful. Please provide the dmesg logs at each run when
GFX is enabled, booting with drm.debug=0xe. Using netconsole or
pstore could help gathering the log when the machine just powers off.

Thanks,
Imre

[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI
[2] git://anongit.freedesktop.org/drm-tip


> 
> Thanks
> Daniel
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