linux-kernel - Re: GemniLake laptops goes power off directly after performing suspend

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Date:   Thu, 7 Dec 2017 10:14:12 +0800
From:   Chris Chiu <chiu@...lessm.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        Len Brown <lenb@...nel.org>,
        Linux Upstreaming Team <linux@...lessm.com>
Subject: Re: GemniLake laptops goes power off directly after performing suspend

On Wed, Dec 6, 2017 at 9:34 PM, Rafael J. Wysocki <rafael@...nel.org> wrote:
> On Wed, Dec 6, 2017 at 10:33 AM, Chris Chiu <chiu@...lessm.com> wrote:
>> On Wed, Dec 6, 2017 at 5:56 AM, Rafael J. Wysocki <rjw@...ysocki.net> 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@...nel.org> wrote:
>>>> > On Tue, Dec 5, 2017 at 11:32 AM, Chris Chiu <chiu@...lessm.com> wrote:
>>>> >> Hi,
>>>> >>     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.
>>>> >
>>>> > Thanks,
>>>> > Rafael
>>>>
>>>> You mean the suspend-related fix used to exist in 4.14? Could you point me
>>>> out which commit it is? Thanks
>>>
>>> No.
>>>
>>> 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.
>>>
>>> Thanks,
>>> Rafael
>>>
>>
>> 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