Another issue I've discovered with this laptop is that it doesn't want to suspend/resume. When I try apm -S or apm -z, it goes into a suspend state and then refuses to come back; I have to hard-shutdown and then reboot it. In fact, the power management as a whole is kind of semi-broken; it won't power off correctly, either, it just resets the machine (CPU throttling works, though I suspect that's entirely internal to the CPU, and the display-brightness hotkeys work.) It also doesn't even notice the lid sensor, even though machdep.apmhalt and machdep.lidsuspend are both set to 1.
dmesg shows that it does recognize an ACPI device, it just doesn't actually work correctly for some reason:
Code:
acpi0 at bios0: rev 0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SSDT
acpi0: wakeup devices C057(S5)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpiprt0 at acpi0: bus 1 (C046)
acpiprt1 at acpi0: bus 2 (C057)
acpiprt2 at acpi0: bus 0 (C045)
acpiec0 at acpi0
acpicpu0 at acpi0: C3, C2, C1, PSS
acpipwrres0 at acpi0: C16E, resource for C16A
acpipwrres1 at acpi0: C13E, resource for C16F
acpipwrres2 at acpi0: C185, resource for C184
acpipwrres3 at acpi0: C18C, resource for C186
acpipwrres4 at acpi0: C196, resource for C194
acpipwrres5 at acpi0: C0E7, resource for C0AB
acpipwrres6 at acpi0: C202, resource for C206
acpipwrres7 at acpi0: C203, resource for C207
acpipwrres8 at acpi0: C204, resource for C208
acpipwrres9 at acpi0: C205, resource for C209
acpitz0 at acpi0: critical temperature is 103 degC
acpitz1 at acpi0: critical temperature is 115 degC
acpitz2 at acpi0: critical temperature is 103 degC
acpibat0 at acpi0: C138 model "Primary" serial 00022 2014/10/27 type LIon oem "Hewlett-Packard"
acpibat1 at acpi0: C137 not present
acpiac0 at acpi0: AC unit online
acpibtn0 at acpi0: C13A
acpibtn1 at acpi0: C139
acpivideo0 at acpi0: C0D0
This wasn't much of an issue when it was still stuck on AC power, but now that I've got a battery for it, it'd be nice to be able to take it places and resume from a suspended session rather than having to cold-boot every time. Is there anything I can do to diagnose/fix this?