Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Paul Menzel <pmenzel@molgen.mpg.de>
Subject: Re: USB devices on Dell TB16 dock stop working after resuming
To:     Mika Westerberg <mika.westerberg@linux.intel.com>
Cc:     Mario Limonciello <mario.limonciello@dell.com>,
        Andreas Noever <andreas.noever@gmail.com>,
        Michael Jamet <michael.jamet@intel.com>,
        Yehezkel Bernat <YehezkelShB@gmail.com>,
        Christian Kellner <ck@xatom.net>, linux-kernel@vger.kernel.org,
        Anthony Wong <anthony.wong@canonical.com>
References: <5d2b39bc-5952-c2b6-63b3-bce28122ffd5@molgen.mpg.de>
 <20191104142459.GC2552@lahna.fi.intel.com>
 <20191104144436.GD2552@lahna.fi.intel.com>
 <20191104154446.GH2552@lahna.fi.intel.com>
 <ea829adedf0445c0845e25d6e4b47905@AUSX13MPC105.AMER.DELL.COM>
 <d8cb6bc6-8145-eaed-5ba4-d7291478bdd7@molgen.mpg.de>
 <20191104162103.GI2552@lahna.fi.intel.com>
Message-ID: <f0257624-920e-eec4-a2ec-7adf8ecbcc9d@molgen.mpg.de>
Date:   Tue, 19 Nov 2019 17:55:43 +0100
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--------------ms060203070908000007060301
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Dear Mika,


On 2019-11-04 17:21, Mika Westerberg wrote:
> On Mon, Nov 04, 2019 at 05:11:10PM +0100, Paul Menzel wrote:

>> On 2019-11-04 16:49, Mario.Limonciello@dell.com wrote:
>>
>>>> From: Mika Westerberg <mika.westerberg@linux.intel.com>
>>>> Sent: Monday, November 4, 2019 9:45 AM
>>
>>>> On Mon, Nov 04, 2019 at 04:44:40PM +0200, Mika Westerberg wrote:
>>>>> On Mon, Nov 04, 2019 at 04:25:03PM +0200, Mika Westerberg wrote:
>>
>>>>>> On Mon, Nov 04, 2019 at 02:13:13PM +0100, Paul Menzel wrote:
>>
>>>>>>> On the Dell XPS 13 9380 with Debian Sid/unstable with Linux 5.3.7=

>>>>>>> suspending the system, and resuming with Dell=E2=80=99s Thunderbo=
lt TB16
>>>>>>> dock connected, the USB input devices, keyboard and mouse,
>>>>>>> connected to the TB16 stop working. They work for a few seconds
>>>>>>> (mouse cursor can be moved), but then stop working. The laptop
>>>>>>> keyboard and touchpad still works fine. All firmware is up-to-dat=
e
>>>>>>> according to `fwupdmgr`.
>>>>>>
>>>>>> What are the exact steps to reproduce? Just "echo mem >
>>>>>> /sys/power/state" and then resume by pressing power button?
>>
>> GNOME Shell 3.34.1+git20191024-1 is used, and the user just closes the=

>> display. So more than `echo mem > /sys/power/state` is done. What
>> distribution do you use?
>=20
> I have buildroot based "distro" so there is no UI running.

Hmm, this is quite different from the =E2=80=9Cnormal=E2=80=9D use-case o=
f the these devices.
That way you won=E2=80=99t hit the bugs of the normal users. ;-)

>>>>> I tried v5.4-rc6 on my 9380 with TB16 dock connected and did a coup=
le of
>>>>> suspend/resume cycles (to s2idle) but I don't see any issues.
>>>>>
>>>>> I may have older/different firmware than you, though.
>>>>
>>>> Upgraded BIOS to 1.8.0 and TBT NVM to v44 but still can't reproduce =
this
>>>> on my system :/
>>
>> The user reported the issue with the previous firmwares 1.x and TBT NV=
M v40.
>> Updating to the recent version (I got the logs with) did not fix the i=
ssue.
>=20
> I also tried v40 (that was originally on that system) but I was not abl=
e
> to reproduce it.
>=20
> Do you know if the user changed any BIOS settings?

We had to disable the Thunderbolt security settings as otherwise the USB
devices wouldn=E2=80=99t work at cold boot either.

So, I built Linux 5.4-rc8 (`make bindeb-pkg -j8`), but unfortunately the
error is still there. Sometimes, re-plugging the dock helped, and sometim=
es
it did not.

Please find the logs attached. The strange thing is, the Linux kernel det=
ects
the devices and I do not see any disconnect events. But, `lsusb` does not=
 list
the keyboard and the mouse. Is that expected.

Additionally, despite `CONFIG_PCI_DEBUG` I do not see more elaborate mess=
ages.

Lastly, could the daemon boltd have anything to do with this?

```
$ boltctl --version
bolt 0.8
$ boltctl list
 =E2=97=8F Dell Thunderbolt Cable
   =E2=94=9C=E2=94=80 type:          peripheral
   =E2=94=9C=E2=94=80 name:          Dell Thunderbolt Cable
   =E2=94=9C=E2=94=80 vendor:        Dell
   =E2=94=9C=E2=94=80 uuid:          0082b09d-2f5f-d400-ffff-ffffffffffff=

   =E2=94=9C=E2=94=80 status:        authorized
   =E2=94=82  =E2=94=9C=E2=94=80 domain:     ca030000-0090-8708-2328-211e=
02222a24
   =E2=94=82  =E2=94=94=E2=94=80 authflags:  none
   =E2=94=9C=E2=94=80 authorized:    Tue 19 Nov 2019 11:35:11 AM UTC
   =E2=94=9C=E2=94=80 connected:     Tue 19 Nov 2019 11:35:11 AM UTC
   =E2=94=94=E2=94=80 stored:        Fri 13 Sep 2019 01:00:25 PM UTC
      =E2=94=9C=E2=94=80 policy:     auto
      =E2=94=94=E2=94=80 key:        no

 =E2=97=8F Dell Thunderbolt Dock
   =E2=94=9C=E2=94=80 type:          peripheral
   =E2=94=9C=E2=94=80 name:          Dell Thunderbolt Dock
   =E2=94=9C=E2=94=80 vendor:        Dell
   =E2=94=9C=E2=94=80 uuid:          10d34968-1d46-8680-ffff-ffffffffffff=

   =E2=94=9C=E2=94=80 status:        authorized
   =E2=94=82  =E2=94=9C=E2=94=80 domain:     ca030000-0090-8708-2328-211e=
02222a24
   =E2=94=82  =E2=94=94=E2=94=80 authflags:  none
   =E2=94=9C=E2=94=80 authorized:    Tue 19 Nov 2019 11:35:11 AM UTC
   =E2=94=9C=E2=94=80 connected:     Tue 19 Nov 2019 11:35:11 AM UTC
   =E2=94=94=E2=94=80 stored:        Fri 13 Sep 2019 01:01:02 PM UTC
      =E2=94=9C=E2=94=80 policy:     auto
      =E2=94=94=E2=94=80 key:        no

```


Kind regards,

Paul


PS: Suspending the device with the dock attached, and unplugging the dock=
 the
power button LED lights up, but the screen stays black and the device nee=
ds
to be forcefully powered off by pressing the power button for 12(?) secon=
ds.


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