APM vs. ACPI status detection

APM vs. ACPI status detection

Post by Soos Pete » Wed, 12 Mar 2003 10:30:18



Hi,

I have a little patch witch sets apm_info.disabled flag not only if APM
disabled by user but if it disabled by SMP or ACPI. Please apply.

<-- Cut here -->
--- ./arch/i386/kernel/apm.c.orig       Tue Mar 11 08:59:24 2003

        }
        if ((smp_num_cpus > 1) && !power_off) {
                printk(KERN_NOTICE "apm: disabled - APM is not SMP safe.\n");
+               apm_info.disabled = 1;
                return -ENODEV;
        }
        if (PM_IS_ACTIVE()) {
                printk(KERN_NOTICE "apm: overridden by ACPI.\n");
+               apm_info.disabled = 1;
                return -ENODEV;
        }
        pm_active = 1;
<-- Cut here -->

Regards,
--
Sos Pter            Pannonhalmi F?aptsg / Archabbey of Pannonhalma
                        H-9090 Pannonhalma, Vr 1.
                        Tel: +3696570189, Fax: +3696470011

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1. APM vs ACPI?

Hello,

I built APM and ACPI into my kernel, when booting, ACPI says that it is
taking over APM features.

Then when I run the battery meter (this is on a laptop), it can't get the
battery state information. If I get rid of ACPI, everything works ok.

So, what is the diff between ACPI and APM and how does it effect me?

Thanks for the info and help,
-Pete

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