Mein gerade gekauftes Tablet mit Ubuntu Toch hat einen extrem hohen Stromverbrauch, ohne dass irgendwelche Anwendungen installiert sind oder es überhaupt genutzt wird. Der volle Akku entlädt sich über Nacht beinahe vollständig.
Ich hatte zuerst den Onofo Dienst in Verdacht, da dieser das Log vollspammed:
Jan 22 17:28:24 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:25 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:25 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:26 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:26 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:27 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:27 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:28 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:28 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:29 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:29 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:30 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:30 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:31 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:31 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:32 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:32 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:33 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:33 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:34 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:34 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:35 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:35 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:36 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:36 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:37 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:37 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:38 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:38 ubuntu-phablet ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Jan 22 17:28:39 ubuntu-phablet ofonod-wrapper[3632]: ofonod[3632]: Power request failed: OPERATION_NOT_ALLOWED
Aber selbst mit gestoppten Onofo, also nur WLAN, gibt es periodische sehr hohe Peaks im Stromverbrauch von bis zu 4-5 Watt:
phablet@ubuntu-phablet:/var/log$ upower -i /org/freedesktop/UPower/devices/battery_battery
native-path: battery
power supply: yes
updated: Thu 22 Jan 2026 20:49:21 CET (13 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: discharging
warning-level: none
energy: 7.13875 Wh
energy-empty: 0 Wh
energy-full: 10.9827 Wh
energy-full-design: 1.09603 Wh
energy-rate: 3.99269 W
voltage: 3.9 V
charge-cycles: 1
time to empty: 1.8 hours
percentage: 65%
temperature: 27 degrees C
capacity: 100%
technology: lithium-ion
icon-name: 'battery-full-symbolic'
History (rate):
1769111361 3.993 discharging
1769111331 4.547 discharging
1769111301 0.190 discharging
1769111271 0.314 discharging
An der Prozessorauslastung ist nur der Display Manager auffällig, obwohl ich auf das Tablet eigentlich über SSH remote zugreife, siehe Anhang.
Sind Stromverbrauch und Laufzeit normal ?
Danke
Marcus