[Bug 865980] New: Dual Battery Laptop: Bat1 is drained before Bat0 and system suspends if Bat1 is empty
https://bugzilla.novell.com/show_bug.cgi?id=865980 https://bugzilla.novell.com/show_bug.cgi?id=865980#c0 Summary: Dual Battery Laptop: Bat1 is drained before Bat0 and system suspends if Bat1 is empty Classification: openSUSE Product: openSUSE 13.1 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Major Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: joschibrauchle@gmx.de QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:27.0) Gecko/20100101 Firefox/27.0 On a Lenovo Thinkpad T440s there are two batteries installed: mo-thinkpad01:/proc/acpi/battery # cat BAT0/info present: yes design capacity: 23200 mWh last full capacity: 23200 mWh battery technology: rechargeable design voltage: 11100 mV design capacity warning: 1160 mWh design capacity low: 200 mWh cycle count: 0 capacity granularity 1: 1 mWh capacity granularity 2: 1 mWh model number: 45N1111 serial number: 12294 battery type: LiP OEM info: SONY mo-thinkpad01:/proc/acpi/battery # cat BAT1/info present: yes design capacity: 23480 mWh last full capacity: 23450 mWh battery technology: rechargeable design voltage: 11400 mV design capacity warning: 1172 mWh design capacity low: 200 mWh cycle count: 0 capacity granularity 1: 1 mWh capacity granularity 2: 1 mWh model number: 45N1127 serial number: 4696 battery type: LION OEM info: LGC Unfortunately, the system drains the BAT1 first: mo-thinkpad01:/proc/acpi/battery # cat BAT0/state present: yes capacity state: ok charging state: charged present rate: 0 mW remaining capacity: 23200 mWh present voltage: 12483 mV mo-thinkpad01:/proc/acpi/battery # cat BAT1/state present: yes capacity state: ok charging state: discharging present rate: 7103 mW remaining capacity: 21920 mWh present voltage: 12418 mV This results in the problem that KDE powermanagement will display a "battery critical" message an perform a hibernate operation as soon as BAT1 reaches the critical level, although BAT0 is still FULLY CHARGED! The system thus only has half of the possible battery life! Reproducible: Always Steps to Reproduce: 1. Use Lenovo T440s with two batteries in battery mode 2. Wait for BAT1 to drain before BAT0 3. Actual Results: System uses BAT1 before BAT0. Thus, "Battery critical" warning and action occurs it BAT1 is empty, although BAT0 is still fully charged Expected Results: System should drain BAT0 before BAT1. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=865980
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Joschi Brauchle
https://bugzilla.novell.com/show_bug.cgi?id=865980
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Joschi Brauchle
From this point of view it does seem to be a problem of the KDE
https://bugzilla.novell.com/show_bug.cgi?id=865980
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Joschi Brauchle
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Joschi Brauchle
https://bugzilla.novell.com/show_bug.cgi?id=865980
https://bugzilla.novell.com/show_bug.cgi?id=865980#c4
--- Comment #4 from Joschi Brauchle
https://bugzilla.novell.com/show_bug.cgi?id=865980
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Xiyuan Liu
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https://bugzilla.novell.com/show_bug.cgi?id=865980#c5
Takashi Iwai
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https://bugzilla.novell.com/show_bug.cgi?id=865980#c6
Hrvoje Senjan
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