Today I woke my HP probook with Zorin 18 and the battery icon in the tray shows 0% and that it is not charging. However, the computer runs even without being pluged in. I would like to boot to older kernel to see if that fixes the issue but my keyboard stopped working in the boot menu for some reason too. This is really annoying as I have been enjoying the OS so much. Any ideas? Many thanks. Here are the battery stats from upower:
juraj@juraj-HP-ProBook-455-G4:~$ upower -i /org/freedesktop/UPower/devices/battery_BATO
native-path: (null)
power supply: no
updated: Thu 01 Jan 1970 01:00:00 CET (1789366749 seconds ago)
has history: no
has statistics: no
unknown
warning-level: unknown
battery-level: unknown
percentage: 0% (should be ignored)
icon-name: '(null)'
juraj@juraj-HP-ProBook-455-G4:~$ upower -i /org/freedesktop/UPower/devices/DisplayDevice
power supply: yes
updated: Mon 14 Sep 2026 07:56:29 CEST (1465 seconds ago)
has history: no
has statistics: no
battery
present: yes
state: pending-charge
warning-level: none
energy: 0 Wh
energy-full: 24.192 Wh
energy-rate: 0 W
charge-cycles: N/A
percentage: 0%
icon-name: 'battery-caution-charging-symbolic'