Compaq Evo N600C, apm, battery <10%, hangs

[Jesse Guardiani]

Paulius Bulotas wrote:

> Hello ;)
> 
> Since I got 0 responses, I've already have better question ;)
> it seems, after battery reaches 9% APM debug(sysctl debug.apm_debug=1)
> says:
> Received APM Event: PMEV_BATTERYLOW
>  * * * BATTERY IS LOW * * *
> 
> and system goes to sleep (suspends?). From console it suspends/resumes
> ok, but if I'm in X, it freezes and I have to reset...
> 
> So, the question would be, how can I tune  FreeBSD reaction to
> PMEV_BATTERYLOW event?


You can use vidcontrol from /etc/rc.suspend to automatically switch
to a VTY before suspending. I think this will require running apmd,
but it's probably a good idea.

Try something like this from rc.suspend:

# switch to a VTY
vidcontrol -s 1 < /dev/ttyv0


Also, there is a kernel build option that allows some laptops to
suspend from X without switching to a VTY. It worked for me on my
laptop (IBM A30p) as long as my funky DVD drive wasn't inserted in
my Ultrabay:

options SC_NO_SUSPEND_VTYSWITCH

However, I'm not sure if that's a 5.x only thing, or if it exists
in 4.x as well...

> 
> Thanks,
> Paulius
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Jesse Guardiani, Systems Administrator
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