[SOLVED] Battery not detected

[jetboo]

Hi,

I am using an old macbook (late 2008 model) and my battery is not detected by the acpi. I am using the kernel 4.9.6 but this problem is there since a long time although i can't say exactly when it started.

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 uname -ar:
Linux djanboox 4.9.6-gentoo-r1-nouveau-kernel #5 SMP Wed Feb 22 16:08:25 CET 2017 x86_64 Intel(R) Core(TM)2 Duo CPU P7350 @ 2.00GHz GenuineIntel GNU/Linux

Here are the devices that are detected by the kernel (ACPI) during boot.

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[    0.598959] pnp 00:03: Plug and Play ACPI device, IDs PNP0b00 (active)
[    0.599875] pnp: PnP ACPI: found 4 devices
[    0.605911] ACPI: PCI Interrupt Link [LUS0] enabled at IRQ 20
[    0.657523] ACPI: PCI Interrupt Link [LUS2] enabled at IRQ 17
[    0.658067] ACPI: PCI Interrupt Link [Z000] enabled at IRQ 22
[    0.710512] ACPI: PCI Interrupt Link [Z001] enabled at IRQ 22
[    0.768412] ACPI: PCI Interrupt Link [Z00F] enabled at IRQ 20
[    0.781520] ACPI: AC Adapter [ADP1] (on-line)
[    0.781683] ACPI: Lid Switch [LID0]
[    0.781768] ACPI: Power Button [PWRB]
[    0.781848] ACPI: Sleep Button [SLPB]
[    0.781953] ACPI: Power Button [PWRF]
[    0.789700] ACPI: PCI Interrupt Link [LSI0] enabled at IRQ 18
[    0.793042] ACPI: PCI Interrupt Link [LMAC] enabled at IRQ 17
[    2.010512] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (unknown) filtered out
[    2.014002] ata2.00: ACPI cmd ef/10:03:00:00:00:a0 (unknown) filtered out
[    2.018791] ata2.00: ACPI cmd ef/10:03:00:00:00:a0 (unknown) filtered out
[    2.020484] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (unknown) filtered out
[    2.617125] ACPI: PCI Interrupt Link [LAZA] enabled at IRQ 18
[    4.319920] ACPI: PCI Interrupt Link [LGPU] enabled at IRQ 20
[44880.867162] ACPI : EC: event blocked
[44882.952373] ACPI : EC: interrupt blocked

As you can see there is no BAT* devices being detected during the boot, while in the kernel setup the battery is enabled.

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# Power management and ACPI options
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_PROCFS_POWER is not set
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
[b]CONFIG_ACPI_BATTERY=y[/b]
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_BGRT is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
# CONFIG_ACPI_NFIT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_ACPI_EXTLOG is not set
# CONFIG_ACPI_CONFIGFS is not set
CONFIG_X86_ACPI_CPUFREQ=y
# CONFIG_X86_ACPI_CPUFREQ_CPB is not set
CONFIG_PNPACPI=y
CONFIG_ATA_ACPI=y
CONFIG_ACPI_I2C_OPREGION=y
# ACPI drivers
# ACPI drivers
# CONFIG_SENSORS_ACPI_POWER is not set
# ACPI INT340X thermal drivers
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
CONFIG_DMA_ACPI=y
# CONFIG_THINKPAD_ACPI is not set
CONFIG_ACPI_WMI=y
# CONFIG_ACPI_CMPC is not set

Acpitool doesn't return anything useful either

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acpitool 
  Battery status : <not available>
  AC adapter     : online 
  Thermal info   : <not available>

Any idea of whats wrong here ?
Best,
Can

[jetboo]

Solved by upgrading the kernel to

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Linux djanboox 4.10.0-gentoo-nouveau-kernel #2 SMP Fri Feb 24 22:44:11 CET 2017 x86_64 Intel(R) Core(TM)2 Duo CPU P7350 @ 2.00GHz GenuineIntel GNU/Linux

and enabling Smart battery system ;

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grep SBS /usr/src/linux/.config
CONFIG_ACPI_SBS=m

Cheers