[Bug 67081] guidance-power-manager thinks battery is low way too early

Duncan Sands baldrick at free.fr
Fri Oct 20 08:24:28 UTC 2006


Public bug reported:

When running on battery power, guidance-power-manager warns that the battery is getting
low when it is still 95% charged!  Worse, it forces hibernation when the battery still has
plenty of capacity left.  Maybe it is confused by the fact that the laptop reports two battery
slots, though only one is physically present, i.e. it is only possible to have one battery
plugged in.  klaptop didn't have this problem.  I took a snapshot of /proc/acpi after the
guidance-power-manager warning.  Here's what was in /proc/acpi/battery:

BAT1

alarm:                   unsupported

present:                 yes
design capacity:         4400 mAh
last full capacity:      3211 mAh
battery technology:      rechargeable
design voltage:          14800 mV
design capacity warning: 250 mAh
design capacity low:     100 mAh
capacity granularity 1:  10 mAh
capacity granularity 2:  25 mAh
model number:            01ZG
serial number:
battery type:            LION
OEM info:                SMP

present:                 yes
capacity state:          ok
charging state:          discharging
present rate:            0 mA
remaining capacity:      3026 mAh
present voltage:         9280 mV


BAT2

present:                 no (alarm)

present:                 no (info)

present:                 no (state)


Other info:

Acer travelmate 800

lspci:

00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP Controller (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83)
00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 03)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R250 Lf [FireGL 9000] (rev 01)
02:02.0 Ethernet controller: Broadcom Corporation BCM4401 100Base-T (rev 01)
02:04.0 Network controller: Intel Corporation PRO/Wireless LAN 2100 3B Mini PCI Adapter (rev 04)
02:06.0 CardBus bridge: O2 Micro, Inc. OZ711M1/MC1 4-in-1 MemoryCardBus Controller (rev 20)
02:06.1 CardBus bridge: O2 Micro, Inc. OZ711M1/MC1 4-in-1 MemoryCardBus Controller (rev 20)
02:06.2 System peripheral: O2 Micro, Inc. OZ711Mx 4-in-1 MemoryCardBus Accelerator
02:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB21 IEEE-1394a-2000 Controller (PHY/Link)

** Affects: kde-guidance (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

-- 
guidance-power-manager thinks battery is low way too early
https://launchpad.net/bugs/67081




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