On Mon, Mar 12, 2018 at 11:29:56PM +0100, Rafael J. Wysocki wrote: > On Mon, Mar 12, 2018 at 8:49 PM, Pavel Machek <pa...@ucw.cz> wrote: > > On Mon 2018-03-12 20:47:15, Pavel Machek wrote: > >> Hi! > >> > >> Did something change recently with battery reporting? > > Yes, it did, and specifically for Thinkpads.
> > >> Fully charged > >> battery shows as empty battery with red "x" in Mate desktop. After > >> reboot to recent mainline problem goes away. Tooltip says "battery > >> waiting to charge". > >> For the MATE bug see: https://github.com/mate-desktop/mate-power-manager/pull/251 The problem is in the new composite battery system in UPower, it "merges" two external batteries into a single one for reporting. That battery does not understand "Not Charging" inside the MATE Power Manager. The above patch fixes that in MATE. > >> /proc/acpi/battery/BAT0/state looks ok: > >> present: yes > >> capacity state: ok > >> charging state: charged > >> present rate: 0 mW > >> remaining capacity: 41240 mWh > >> present voltage: 16495 mV > >> > >> Linux amd 4.16.0-rc3-next-20180302 #30 SMP Fri Mar 2 10:28:44 CET 2018 > >> i686 GNU/Linux > >> pavel@amd:~$ cat /sys/class/power_supply/BAT0/status > >> Not charging > > > > Reboot to mainline: > > > > pavel@amd:~$ uname -a > > Linux amd 4.16.0-rc4+ #509 SMP Thu Mar 8 15:28:06 CET 2018 i686 > > GNU/Linux > > pavel@amd:~$ cat /sys/class/power_supply/BAT0/status > > Unknown > > > > Mate shows it as "laptop battery is fully charged". > > > >> Thinkpad X60. > > Please try to revert commits fa93854f7a7e..a20136a67a99 from > linux-next and see if that helps.