I've also encountered this bug, first thinking it was a bug with the KDE battery indicator applet. Upower is giving incorrect energy-full values when this is happening. I've attached my 'upower -d' output from when this is happening, you can see that the energy-full values are way to high. Restarting the upower.service solves the problem.
** Attachment added: "upower output when bug occurs" https://bugs.launchpad.net/ubuntu/+source/upower/+bug/1435601/+attachment/4396660/+files/upower.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to upower in Ubuntu. https://bugs.launchpad.net/bugs/1435601 Title: [vivid] After resume, upower reports critically low battery Status in upower package in Ubuntu: Confirmed Bug description: Version: Ubuntu Vivid 15.04 Reproduce (often): 1. Close lid 2. After some time, open lid. What happens: I get a notification that the battery is critically low and the laptop hibernates. What should happen: The laptop should not hibernate. This is a upower dump from a normal situation. I will try to record a dump in an abnormal situation where the laptop is about to shut down. $ upower --dump #normal Device: /org/freedesktop/UPower/devices/line_power_ADP0 native-path: ADP0 power supply: yes updated: Mon 23 Mar 2015 11:44:49 PM CET (29 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: SIMPLO model: Dell serial: 1180 power supply: yes updated: Mon 23 Mar 2015 11:44:49 PM CET (29 seconds ago) has history: yes has statistics: yes battery present: yes rechargeable: yes state: discharging warning-level: none energy: 22.3184 Wh energy-empty: 0 Wh energy-full: 40.3596 Wh energy-full-design: 47.286 Wh energy-rate: 8.7616 W voltage: 7.644 V time to empty: 2.5 hours percentage: 55% capacity: 85.3521% technology: lithium-ion icon-name: 'battery-good-symbolic' History (charge): 1427150688 55.000 discharging 1427150688 0.000 unknown 1427150677 55.000 discharging History (rate): 1427150688 8.762 discharging 1427150688 0.000 unknown 1427150688 8.762 discharging 1427150677 11.625 discharging Device: /org/freedesktop/UPower/devices/DisplayDevice power supply: yes updated: Mon 23 Mar 2015 11:44:48 PM CET (30 seconds ago) has history: no has statistics: no battery present: yes state: discharging warning-level: none energy: 22.3184 Wh energy-full: 40.3596 Wh energy-rate: 8.7616 W time to empty: 2.5 hours percentage: 55% icon-name: 'battery-good-symbolic' Daemon: daemon-version: 0.99.2 on-battery: yes lid-is-closed: no lid-is-present: yes critical-action: HybridSleep This is a upower dump from an abnormal situation where the battery is known to be at 53% (and it's recorded 6 minutes after the one above), but still is being reported as critical and subsequently puts the laptop to sleep: upower --dump Device: /org/freedesktop/UPower/devices/line_power_ADP0 native-path: ADP0 power supply: yes updated: Mon 23 Mar 2015 11:50:23 PM CET (15 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: SIMPLO model: Dell serial: 1180 power supply: yes updated: Mon 23 Mar 2015 11:50:23 PM CET (15 seconds ago) has history: yes has statistics: yes battery present: yes rechargeable: yes state: discharging warning-level: none energy: 21.3194 Wh energy-empty: 0 Wh energy-full: 40.3596 Wh energy-full-design: 47.286 Wh energy-rate: 8.1918 W voltage: 7.64 V time to empty: 2.6 hours percentage: 52% capacity: 85.3521% technology: lithium-ion icon-name: 'battery-good-symbolic' History (charge): 1427151023 52.000 discharging 1427151023 0.000 unknown 1427151022 0.000 empty 1427150929 53.000 discharging History (rate): 1427151023 8.192 discharging 1427151023 0.000 unknown 1427151022 0.000 empty 1427150929 11.529 discharging Device: /org/freedesktop/UPower/devices/DisplayDevice power supply: yes updated: Mon 23 Mar 2015 11:50:23 PM CET (15 seconds ago) has history: no has statistics: no battery present: yes state: discharging warning-level: none energy: 21.3194 Wh energy-full: 40.3596 Wh energy-rate: 8.1918 W time to empty: 2.6 hours percentage: 52% icon-name: 'battery-good-symbolic' Daemon: daemon-version: 0.99.2 on-battery: yes lid-is-closed: no lid-is-present: yes critical-action: HybridSleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upower/+bug/1435601/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
