This is current/arm64 on MacBook Air (dmesg below).
The machine seems to be _losing_ battery charge even when on AC.
I have been watching sysctl hw for a few minutes (also below):
hw.sensors.aplsmc0.amphour0=0.20 Ah (remaining battery capacity)
hw.sensors.aplsmc0.amphour0=0.19 Ah (remaining battery capacity)
hw.sensors.aplsmc0.amphour0=0.18 Ah (remaining battery capacity)
hw.sensors.aplsmc0.amphour0=0.17 Ah (remaining battery capacity)
The machine is idle while this happens.
That's with apm -A, which means hw.setperf=100 on AC.
Only with apm -L does the battery charge start to increase:
hw.sensors.aplsmc0.amphour0=0.17 Ah (remaining battery capacity)
hw.sensors.aplsmc0.amphour0=0.18 Ah (remaining battery capacity)
hw.sensors.aplsmc0.amphour0=0.19 Ah (remaining battery capacity)
It's not a HW problem: when running macOS on the machine
(which, presumably, is able to utilize the M1 more effectively),
the battery does charge on AC (while running a lot of Firefox tabs).
Jan
OpenBSD 7.2-current (GENERIC.MP) #2036: Tue Feb 21 04:45:54 MST 2023
dera...@arm64.openbsd.org:/usr/src/sys/arch/arm64/compile/GENERIC.MP
real mem = 7916920832 (7550MB)
avail mem = 7555293184 (7205MB)
random: good seed from bootblocks
mainbus0 at root: Apple MacBook Air (M1, 2020)
cpu0 at mainbus0 mpidr 0: Apple Icestorm r1p1
cpu0: 128KB 64b/line 8-way L1 VIPT I-cache, 64KB 64b/line 8-way L1 D-cache
cpu0: 4096KB 128b/line 16-way L2 cache
cpu0:
TLBIOS+IRANGE,TS+AXFLAG,FHM,DP,SHA3,RDM,Atomic,CRC32,SHA2+SHA512,SHA1,AES+PMULL,SPECRES,SB,FRINTTS,GPI,LRCPC+LDAPUR,FCMA,JSCVT,API+PAC,DPB,SpecSEI,PAN+ATS1E1,LO,HPDS,CSV3,CSV2,DIT
cpu1 at mainbus0 mpidr 1: Apple Icestorm r1p1
cpu1: 128KB 64b/line 8-way L1 VIPT I-cache, 64KB 64b/line 8-way L1 D-cache
cpu1: 4096KB 128b/line 16-way L2 cache
cpu1:
TLBIOS+IRANGE,TS+AXFLAG,FHM,DP,SHA3,RDM,Atomic,CRC32,SHA2+SHA512,SHA1,AES+PMULL,SPECRES,SB,FRINTTS,GPI,LRCPC+LDAPUR,FCMA,JSCVT,API+PAC,DPB,SpecSEI,PAN+ATS1E1,LO,HPDS,CSV3,CSV2,DIT
cpu2 at mainbus0 mpidr 2: Apple Icestorm r1p1
cpu2: 128KB 64b/line 8-way L1 VIPT I-cache, 64KB 64b/line 8-way L1 D-cache
cpu2: 4096KB 128b/line 16-way L2 cache
cpu2:
TLBIOS+IRANGE,TS+AXFLAG,FHM,DP,SHA3,RDM,Atomic,CRC32,SHA2+SHA512,SHA1,AES+PMULL,SPECRES,SB,FRINTTS,GPI,LRCPC+LDAPUR,FCMA,JSCVT,API+PAC,DPB,SpecSEI,PAN+ATS1E1,LO,HPDS,CSV3,CSV2,DIT
cpu3 at mainbus0 mpidr 3: Apple Icestorm r1p1
cpu3: 128KB 64b/line 8-way L1 VIPT I-cache, 64KB 64b/line 8-way L1 D-cache
cpu3: 4096KB 128b/line 16-way L2 cache
cpu3:
TLBIOS+IRANGE,TS+AXFLAG,FHM,DP,SHA3,RDM,Atomic,CRC32,SHA2+SHA512,SHA1,AES+PMULL,SPECRES,SB,FRINTTS,GPI,LRCPC+LDAPUR,FCMA,JSCVT,API+PAC,DPB,SpecSEI,PAN+ATS1E1,LO,HPDS,CSV3,CSV2,DIT
cpu4 at mainbus0 mpidr 10100: Apple Firestorm r1p1
cpu4: 192KB 64b/line 6-way L1 VIPT I-cache, 128KB 64b/line 8-way L1 D-cache
cpu4: 12288KB 128b/line 12-way L2 cache
cpu4:
TLBIOS+IRANGE,TS+AXFLAG,FHM,DP,SHA3,RDM,Atomic,CRC32,SHA2+SHA512,SHA1,AES+PMULL,SPECRES,SB,FRINTTS,GPI,LRCPC+LDAPUR,FCMA,JSCVT,API+PAC,DPB,SpecSEI,PAN+ATS1E1,LO,HPDS,CSV3,CSV2,DIT
cpu5 at mainbus0 mpidr 10101: Apple Firestorm r1p1
cpu5: 192KB 64b/line 6-way L1 VIPT I-cache, 128KB 64b/line 8-way L1 D-cache
cpu5: 12288KB 128b/line 12-way L2 cache
cpu5:
TLBIOS+IRANGE,TS+AXFLAG,FHM,DP,SHA3,RDM,Atomic,CRC32,SHA2+SHA512,SHA1,AES+PMULL,SPECRES,SB,FRINTTS,GPI,LRCPC+LDAPUR,FCMA,JSCVT,API+PAC,DPB,SpecSEI,PAN+ATS1E1,LO,HPDS,CSV3,CSV2,DIT
cpu6 at mainbus0 mpidr 10102: Apple Firestorm r1p1
cpu6: 192KB 64b/line 6-way L1 VIPT I-cache, 128KB 64b/line 8-way L1 D-cache
cpu6: 12288KB 128b/line 12-way L2 cache
cpu6:
TLBIOS+IRANGE,TS+AXFLAG,FHM,DP,SHA3,RDM,Atomic,CRC32,SHA2+SHA512,SHA1,AES+PMULL,SPECRES,SB,FRINTTS,GPI,LRCPC+LDAPUR,FCMA,JSCVT,API+PAC,DPB,SpecSEI,PAN+ATS1E1,LO,HPDS,CSV3,CSV2,DIT
cpu7 at mainbus0 mpidr 10103: Apple Firestorm r1p1
cpu7: 192KB 64b/line 6-way L1 VIPT I-cache, 128KB 64b/line 8-way L1 D-cache
cpu7: 12288KB 128b/line 12-way L2 cache
cpu7:
TLBIOS+IRANGE,TS+AXFLAG,FHM,DP,SHA3,RDM,Atomic,CRC32,SHA2+SHA512,SHA1,AES+PMULL,SPECRES,SB,FRINTTS,GPI,LRCPC+LDAPUR,FCMA,JSCVT,API+PAC,DPB,SpecSEI,PAN+ATS1E1,LO,HPDS,CSV3,CSV2,DIT
efi0 at mainbus0: UEFI 2.9
efi0: Das U-Boot rev 0x20220700
apm0 at mainbus0
"opp-table-0" at mainbus0 not configured
"opp-table-1" at mainbus0 not configured
agtimer0 at mainbus0: 24000 kHz
"pmu-e" at mainbus0 not configured
"pmu-p" at mainbus0 not configured
"clock-ref" at mainbus0 not configured
"clock-120m" at mainbus0 not configured
simplebus0 at mainbus0: "soc"
aplintc0 at simplebus0 nirq 896 ndie 1
aplpmgr0 at simplebus0
aplpinctrl0 at simplebus0
aplpinctrl1 at simplebus0
aplpmgr1 at simplebus0
apldog0 at simplebus0
aplmbox0 at simplebus0
aplpinctrl2 at simplebus0
aplpinctrl3 at simplebus0
aplmbox1 at simplebus0
apldart0 at simplebus0: bypass
apldart1 at simplebus0: bypass
apldart2 at simplebus0: bypass
apldart3 at simplebus0: bypass
apldart4 at simplebus0
apldart5 at simplebus0: bypass
aplcpu0 at simplebus0
apliic0 at simplebus0
iic0 at apliic0
tipd0 at iic0 addr 0x38
tipd1 at iic0 addr 0x3f
apliic1 at simplebus0
iic1 at apliic1
tascodec0 at iic1 addr 0x31
apliic2 at simplebus0
iic2 at apliic2
tascodec1 at iic2 addr 0x34
"cirrus,cs42l83" at iic2 addr 0x48 not configured
aplspi0 at simplebus0
aplhidev0 at aplspi0
aplkbd0 at aplhidev0: 8 variable keys, 6 key codes
wskbd0 at aplkbd0: console keyboard
aplms0 at aplhidev0
wsmouse0 at aplms0 mux 0
exuart0 at simplebus0
exuart1 at simplebus0
aplspmi0 at simplebus0
aplpmu0 at aplspmi0 sid 0xf
aplsmc0 at simplebus0
aplsart0 at simplebus0
aplns0 at simplebus0
nvme0 at aplns0: NVMe 1.1
nvme0: APPLE SSD AP0256Q, firmware 873.40.4, serial 0ba016e96434ee18
scsibus0 at nvme0: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <NVMe, APPLE SSD AP0256, 873.>
sd0: 239372MB, 4096 bytes/sector, 61279344 sectors
xhci0 at simplebus0, xHCI 1.10
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Generic xHCI root hub" rev 3.00/1.00
addr 1
xhci1 at simplebus0, xHCI 1.10
usb1 at xhci1: USB revision 3.0
uhub1 at usb1 configuration 1 interface 0 "Generic xHCI root hub" rev 3.00/1.00
addr 1
aplpcie0 at simplebus0
pci0 at aplpcie0
ppb0 at pci0 dev 0 function 0 "Apple M1 PCIe" rev 0x01
pci1 at ppb0 bus 1
bwfm0 at pci1 dev 0 function 0 "Broadcom BCM4378" rev 0x03: msi
vendor "Broadcom", unknown product 0x5f69 (class network subclass
miscellaneous, rev 0x03) at pci1 dev 0 function 1 not configured
"clock-ref" at simplebus0 not configured
aplnco0 at simplebus0
apldma0 at simplebus0
aplmca0 at simplebus0
gpiobl0 at mainbus0
aplaudio0 at mainbus0
audio0 at aplaudio0
simplefb0 at mainbus0: 2560x1600, 32bpp
wsdisplay0 at simplefb0 mux 1: console (std, vt100 emulation), using wskbd0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on sd0a (0f72c500fa6fee6b.a) swap on sd0b dump on sd0b
bwfm0: address d4:57:63:c6:35:69
$ sysctl hw
hw.machine=arm64
hw.model=Apple Icestorm r1p1
hw.ncpu=8
hw.byteorder=1234
hw.pagesize=4096
hw.disknames=sd0:0f72c500fa6fee6b
hw.diskcount=1
hw.sensors.aplcpu0.frequency0=2064.00 Hz
hw.sensors.aplcpu0.frequency1=2988.00 Hz
hw.sensors.aplsmc0.temp0=30.80 degC (battery)
hw.sensors.aplsmc0.temp1=37.93 degC (charger)
hw.sensors.aplsmc0.temp2=36.55 degC (wireless)
hw.sensors.aplsmc0.volt0=11.04 VDC (battery)
hw.sensors.aplsmc0.volt1=5.07 VDC (input)
hw.sensors.aplsmc0.power0=7.34 W (input)
hw.sensors.aplsmc0.power1=9.03 W (system)
hw.sensors.aplsmc0.current0=1.45 A (input)
hw.sensors.aplsmc0.amphour0=0.17 Ah (remaining battery capacity)
hw.sensors.aplsmc0.amphour1=4.15 Ah (last full battery capacity)
hw.sensors.aplsmc0.amphour2=4.38 Ah (battery design capacity)
hw.sensors.aplsmc0.indicator0=On (power supply)
hw.sensors.aplsmc0.raw0=144 (battery discharge cycles)
hw.cpuspeed=2988
hw.setperf=100
hw.product=Apple MacBook Air (M1, 2020)
hw.serialno=C02GWN39Q6L4
hw.physmem=7916920832
hw.usermem=7916904448
hw.ncpufound=8
hw.allowpowerdown=1
hw.perfpolicy=auto
hw.smt=0
hw.ncpuonline=8
hw.power=1
