Thanks!
Will test as soon as I can.
The machine is Xiaomi laptop, made by Timi Computing, model is TM1701,
firmware is made by Insyde company.
пн, 9 нояб. 2020 г. в 21:36, Benjamin Berg <bberg@xxxxxxxxxx>:
>
> Hi,
>
> On Mon, 2020-11-09 at 13:20 +0200, Heikki Krogerus wrote:
> > On Mon, Nov 09, 2020 at 08:48:06PM +1000, Vladimir Yerilov wrote:
> > > Since linux 5.8 I'm experiencing a problem related to power source
> > > detection on my laptop. My machine is equipped with 2 typec ports, one
> > > of them has power delivery and is used for charging, another one has
> > > only data transfer capability. The issue is, when I unplug the power
> > > cable, the OS is reporting something like "Battery at 100%, plugged in
> > > but still discharging" (KDE Plasma notification) - whether another
> > > port is used or not. I checked with upower, you can see the output for
> > > kernel 5.4 and 5.10 attached. In brief, on 5.8 onwards I have some
> > > "line_power_ucsi_source_psy_USBC000o001" device which is considered a
> > > power supply and that prevents OS to switch to "battery mode" when
> > > unplugging the cable, instead it thinks there's a power source but not
> > > powerful enough to charge the battery, upower says this: "on-battery:
> > > no", but actually no ac power source is connected.
> > > I did some research with git bisect up to the merge commit
> > > `e611c0fe318c6d6827ee2bba660fbc23cf73f7dc` ("Merge tag 'usb-5.8-rc1'
> > > of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb"), and
> > > looked through its content. My wild guess based on upower output is
> > > that a new driver introduced there, /drivers/usb/typec/ucsi/psy.c, is
> > > responsible for this wrong behavior.
> > >
> > > Could you please look into that based on info I'm providing?
> > > Thank you!
> >
> > This sounds a bit like the issue that was reported and fixed here:
> > https://lore.kernel.org/lkml/20201009144047.505957-1-benjamin@xxxxxxxxxxxxxxxx/
>
> I agree, sounds very much like the issue I was seeing.
>
> What machine/model are you seeing this on? The PPM is implemented in
> Firmware, so the behaviour will depend on the Vendor or even model. I
> observed it on a Lenovo laptop, but would be curious to know if similar
> issues happen elsewhere.
>
> I only observed an issue when using a thunderbolt dock and not with a
> plain USB-C charger.
>
> > Can you try the two patches from that series?
>
> Yeah, that would be a good data point.
>
> Benjamin
>
> > +Bejamin, who prepared those patches.
> >
> > > Device: /org/freedesktop/UPower/devices/line_power_ADP0
> > > native-path: ADP0
> > > power supply: yes
> > > updated: Sun 08 Nov 2020 15:27:39 +10 (97 seconds
> > > ago)
> > > has history: no
> > > has statistics: no
> > > line-power
> > > warning-level: none
> > > online: yes
> > > icon-name: 'ac-adapter-symbolic'
> > >
> > > Device: /org/freedesktop/UPower/devices/battery_BAT0
> > > native-path: BAT0
> > > vendor: SUNWODA
> > > model: R15B01W
> > > serial: ACFA
> > > power supply: yes
> > > updated: Sun 08 Nov 2020 15:27:39 +10 (97 seconds
> > > ago)
> > > has history: yes
> > > has statistics: yes
> > > battery
> > > present: yes
> > > rechargeable: yes
> > > state: charging
> > > warning-level: none
> > > energy: 46.198 Wh
> > > energy-empty: 0 Wh
> > > energy-full: 46.664 Wh
> > > energy-full-design: 60.04 Wh
> > > energy-rate: 2.059 W
> > > voltage: 8.672 V
> > > time to full: 13.6 minutes
> > > percentage: 99%
> > > capacity: 77.7215%
> > > technology: lithium-ion
> > > icon-name: 'battery-full-charging-symbolic'
> > > History (charge):
> > > 1604813259 0.000 unknown
> > > History (rate):
> > > 1604813259 0.000 unknown
> > >
> > > Device:
> > > /org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o
> > > 001
> > > native-path: ucsi-source-psy-USBC000:001
> > > power supply: yes
> > > updated: Sun 08 Nov 2020 15:27:39 +10 (97 seconds
> > > ago)
> > > has history: no
> > > has statistics: no
> > > line-power
> > > warning-level: none
> > > online: yes
> > > icon-name: 'ac-adapter-symbolic'
> > >
> > > Device: /org/freedesktop/UPower/devices/DisplayDevice
> > > power supply: yes
> > > updated: Sun 08 Nov 2020 15:27:39 +10 (97 seconds
> > > ago)
> > > has history: no
> > > has statistics: no
> > > battery
> > > present: yes
> > > state: charging
> > > warning-level: none
> > > energy: 46.198 Wh
> > > energy-full: 46.664 Wh
> > > energy-rate: 2.059 W
> > > time to full: 13.6 minutes
> > > percentage: 99%
> > > icon-name: 'battery-full-charging-symbolic'
> > >
> > > Daemon:
> > > daemon-version: 0.99.11
> > > on-battery: no
> > > lid-is-closed: no
> > > lid-is-present: yes
> > > critical-action: HybridSleep
> > > Device: /org/freedesktop/UPower/devices/line_power_ADP0
> > > native-path: ADP0
> > > power supply: yes
> > > updated: Sun 08 Nov 2020 15:29:25 +10 (18 seconds
> > > ago)
> > > has history: no
> > > has statistics: no
> > > line-power
> > > warning-level: none
> > > online: no
> > > icon-name: 'ac-adapter-symbolic'
> > >
> > > Device: /org/freedesktop/UPower/devices/battery_BAT0
> > > native-path: BAT0
> > > vendor: SUNWODA
> > > model: R15B01W
> > > serial: ACFA
> > > power supply: yes
> > > updated: Sun 08 Nov 2020 15:29:25 +10 (18 seconds
> > > ago)
> > > has history: yes
> > > has statistics: yes
> > > battery
> > > present: yes
> > > rechargeable: yes
> > > state: discharging
> > > warning-level: none
> > > energy: 46.198 Wh
> > > energy-empty: 0 Wh
> > > energy-full: 46.664 Wh
> > > energy-full-design: 60.04 Wh
> > > energy-rate: 1.998 W
> > > voltage: 8.44 V
> > > time to empty: 23.1 hours
> > > percentage: 99%
> > > capacity: 77.7215%
> > > technology: lithium-ion
> > > icon-name: 'battery-full-symbolic'
> > > History (charge):
> > > 1604813365 99.000 charging
> > > History (rate):
> > > 1604813365 1.998 charging
> > >
> > > Device:
> > > /org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o
> > > 001
> > > native-path: ucsi-source-psy-USBC000:001
> > > power supply: yes
> > > updated: Sun 08 Nov 2020 15:27:39 +10 (124 seconds
> > > ago)
> > > has history: no
> > > has statistics: no
> > > line-power
> > > warning-level: none
> > > online: yes
> > > icon-name: 'ac-adapter-symbolic'
> > >
> > > Device: /org/freedesktop/UPower/devices/DisplayDevice
> > > power supply: yes
> > > updated: Sun 08 Nov 2020 15:29:25 +10 (18 seconds
> > > ago)
> > > has history: no
> > > has statistics: no
> > > battery
> > > present: yes
> > > state: discharging
> > > warning-level: none
> > > energy: 46.198 Wh
> > > energy-full: 46.664 Wh
> > > energy-rate: 1.998 W
> > > time to empty: 23.1 hours
> > > percentage: 99%
> > > icon-name: 'battery-full-symbolic'
> > >
> > > Daemon:
> > > daemon-version: 0.99.11
> > > on-battery: no
> > > lid-is-closed: no
> > > lid-is-present: yes
> > > critical-action: HybridSleep
> > >
> >
> > thanks,
> >
--
----
Best regards,
Vladimir Yerilov
