I have had the same problem since I got my XPS 7390, and I have the same problem. I just found this report and will try Daniel's fix ASAP (actually, my laptop has been charging all night, so I hope it will work). However, just before I do, here is the output of the two commands required by Sebastien.
$ upower -d Device: /org/freedesktop/UPower/devices/line_power_AC native-path: AC power supply: yes updated: mar. 07 avril 2020 06:49:37 CEST (59 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: SMP model: DELL G8VCF6C serial: 1225 power supply: yes updated: mar. 07 avril 2020 06:49:37 CEST (59 seconds ago) has history: yes has statistics: yes battery present: yes rechargeable: yes state: fully-charged warning-level: none energy: 48,8832 Wh energy-empty: 0 Wh energy-full: 49,4 Wh energy-full-design: 51,9992 Wh energy-rate: 4,104 W voltage: 8,637 V percentage: 98% capacity: 95,0015% technology: lithium-polymer icon-name: 'battery-full-charged-symbolic' History (charge): 1586234977 98,000 discharging History (rate): 1586234977 4,104 fully-charged 1586234977 6,492 discharging Device: /org/freedesktop/UPower/devices/DisplayDevice power supply: yes updated: mar. 07 avril 2020 06:49:37 CEST (59 seconds ago) has history: no has statistics: no battery present: yes state: fully-charged warning-level: none energy: 48,8832 Wh energy-full: 49,4 Wh energy-rate: 4,104 W percentage: 98% icon-name: 'battery-full-charged-symbolic' Daemon: daemon-version: 0.99.11 on-battery: no lid-is-closed: no lid-is-present: yes critical-action: PowerOff $ journalctl -b 0 >/tmp/journalctl.out (see attached file) ** Attachment added: "output of journalctl -b 0" https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1860761/+attachment/5348325/+files/journalctl.out -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1860761 Title: Dell XPS 13 - Bios upgrade not working - Always ask for power supply To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1860761/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs