Messages in this thread | | | From | Borsenkow Andrej <> | Subject | RE: APM idle problems - how to check if BIOS halts CPU? | Date | 13 Dec 2001 21:31:09 +0300 |
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Oh, my! I am ashamed. I totally missed the fact that default idle task alredy halts CPU. I must be getting old :(
On Чтв, 2001-12-13 at 14:39, Andreas Steinmetz wrote: > I posted an apm patch and asked Marcelo to apply it. What you do see is > kapm-idled and the idle task both racing for idle time. There's even more > problems (search lkml for subject kapm-idled and have a look at the reply from > Alan Cox on Dec 5 which does contain my original mail and the patch). With the > patch e.g. the fan control of my laptop works properly which it never did > before.
Unfortunately, this patch does not works as I'd expected. This patch does hide systime, but it does not cool CPU. With this patch system runs 4C hotter than it run when I replaced apm_do_idle() with apm_cpu_idle() in original apm.c
I'll try to get a closer look at weekend; any hints how to debug it are welcome.
If you really do have a broken bios there's no other way than to > contact your system's vendor. >
Well, my vendor is ASUS and it is notorious for never answering bug reports from mere mortals. I also do not know how important Linux market is for them and Windows runs fine with ACPI (and Linux with ACPI does not have this problem as well. But I run Mandrake and they currently do not want to enable ACPI for different reasons). But I'll try anyway.
Thank you
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