Re: kapmidled and AMD K6-2

From: Kurt Roeckx (Q@ping.be)
Date: Tue Oct 09 2001 - 13:40:39 EST


On Tue, Oct 09, 2001 at 04:15:20PM +0100, Jose_Jorge@teklynx.fr wrote:
> Hi,
>
> I have read all recent mails about this misunderstooded change in 2.4
> series. But as no one reports heating, I do :
>
> for the AMD K6-2 on a DFI motherboard AT/ATX, using the AT power supply,
> this option is buggy. I mean the cycles kapmidled works doesn't cool the
> processor, they hot him.
>
> This stops as soon as I uncheck the option "Send Halt command on idle" in
> the APM settings of the kernel.

I have a K6-2 too. When I'm using 100% of the CPU, the temp of
the CPU is around 42 - 44 C. When I don't use any CPU at all it
will lower with about 10 C.

>From my .config:

CONFIG_PM=y
# CONFIG_ACPI is not set
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
# CONFIG_APM_DO_ENABLE is not set
# CONFIG_APM_CPU_IDLE is not set
# CONFIG_APM_DISPLAY_BLANK is not set
# CONFIG_APM_RTC_IS_GMT is not set
# CONFIG_APM_ALLOW_INTS is not set
# CONFIG_APM_REAL_MODE_POWER_OFF is not set

The only reason I enable APM is because then I can do a
powerdown.

I'm willing to test if the temp goes up when I enable
CONFIG_APM_CPU_IDLE, and it's idle otherwise.
CONFIG_APM_CPU_IDLE is shown as "Make CPU Idle calls when idle",
I don't see a "Send Halt command on idle".

Kurt

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