Re: Unable to get APM working -- help! [no acpi_cmbat entries]

From: Daniel O'Connor (doconnor_at_gsoft.com.au)
Date: 12/27/04

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    To: freebsd-hackers@freebsd.org
Date: Mon, 27 Dec 2004 12:59:03 +1030

    On Mon, 27 Dec 2004 02:47, security@revolutionsp.com wrote:
    > Just a quick add, my dmesg doesn't show acpi_cmbat entries. You probably
    > confused my dmesg with yours (from the dmesg mail I sent you)

    Err, I said you didn't have any cmbat entries.. My point was that the lack of
    those entries is probably a hint as to why you can't see any battery info.

    As you suggest, try posting on freebsd-acpi about it.

    > >> On Sun, 26 Dec 2004 15:26, security@revolutionsp.com wrote:
    > >>> I'll try it out; meanwhile, I've discovered the sysctl to change this
    > >>> manually. I've checked it works by trying to compile something at the
    > >>> lowest CPU clock speed. It was slow to hell :-)
    > >>
    > >> That's probably clock throttling which is different..
    > >
    > > Yes, the sysctl included "throttle". As I said, I'm new to the laptop
    > > world.. Is the power saving difference a lot if I just throttle the
    > > clock, instead of using enhanced speed step?
    > >
    > >> [Enhanced] Speed Step reduces the clock speed and the CPU core voltage..
    > >> clock
    > >> throttling just idles the CPU for a certain proportion of the time. If
    > >> you
    > >> want slow try forcing them both to the slowest speed.. Pentium-M 75Mhz
    > >>
    > >> :)
    > >> :
    > >>> > Any chance there is a new BIOS available for that system?
    > >>>
    > >>> A quick googling session brought up nothing.
    > >>
    > >> How about say, checking the makers web site?
    > >
    > > I also did, nothing :-P
    > >
    > >>> > No.. If I try and look at a non existent battery slot it says 'device
    > >>>
    > >>> not
    > >>>
    > >>> > configured' so maybe it thinks you have no batteries for some strange
    > >>> > reason.
    > >>>
    > >>> I've installed klaptop and it shows battery as -1 and 'not charging'
    > >>> acpiconf -i[0-9] didn't do any good either :/
    > >>
    > >> Without ACPI support being able to read your battery status no userland
    > >> program will work.
    > >>
    > >> Your dmesg shows acpi_cmbat entries, ie
    > >> acpi_cmbat0: <Control Method Battery> on acpi0
    > >> acpi_cmbat1: <Control Method Battery> on acpi0
    > >>
    > >> which I think is pretty fundamental to being able to read battery status
    > >> ;)
    > >
    > > Yesterday I googled a bit for my laptop name+linux and I found a post
    > > from a guy who had the same exact problem under Linux. He had /proc/acpi
    > > but no /proc/acpi/battery.
    > >
    > > I know battery status can be seen, as the laptop shipped with win XP
    > > home, which I promptly got rid of, but I installed a game there to see
    > > how many FPS I'd get playing with the laptop. So I still messed around
    > > with it (windows) for around 35 minutes, and could see the little battery
    > > icon discharging.
    > >
    > > If the acpi_cmbat0/1 shows up on dmesg, what could be wrong? Perhaps this
    > > ACPI implementation is a bit weird and I should send a copy of my asl to
    > > freebsd-acpi ?
    > >
    > >> --
    > >> Daniel O'Connor software and network engineer
    > >> for Genesis Software - http://www.gsoft.com.au
    > >> "The nice thing about standards is that there
    > >> are so many of them to choose from."
    > >> -- Andrew Tanenbaum
    > >> GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
    > >
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    -- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C

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