Messages in this thread | | | Subject | Re: Two problems after upgrade tto 2.4.26 | From | Len Brown <> | Date | 24 Apr 2004 22:50:46 -0400 |
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On Fri, 2004-04-23 at 04:22, Martin Knoblauch wrote:
Re: keyboard/mouse instability with ACPI enabled starting in 2.4.26
> >Does /proc/interrupts show any acpi events? > >Did it in 2.4.23? > > > Len, > > some ACPI Interrupts: > > cat /proc/interrupts > CPU0 > 0: 31464 XT-PIC timer > 1: 570 XT-PIC keyboard > 2: 0 XT-PIC cascade > 3: 5 XT-PIC HiSax > 8: 2 XT-PIC rtc > 9: 1197 XT-PIC acpi > 10: 1695 XT-PIC eth0, usb-uhci, Texas Instruments > PCI1420, Texas Instruments PCI1420 (#2) > 12: 5460 XT-PIC PS/2 Mouse > 14: 18052 XT-PIC ide0 > 15: 11 XT-PIC ide1
kill acpid and # cat /proc/acpi/event to see what the events are. We we are working on a GPE issue related to spurious ACPI interrupts right now, but I'd actually expect 2.4.26 to get _fewer_ acpi interrupts than 2.4.25, not more.
Re: fan running more it would be interesting if you notice a temperature difference between the releases in /proc/acpi/thermal...
eg. cat /proc/acpi/thermal_zone/THRM/temperature temperature: 37 C
FAN isn't always controlled by ACPI. If it is, you'll see it in the dmesg like this: ACPI: Power Resource [PFAN] (off) In either case, it may be that we're running hotter (say idle isn't working right), or we're running the fan more often by mistake.
For idle, you can compare the /proc/acpi/processor/CPU0/power file in the two releases to see if one release is getting into a deeper power-saving state than the other.
Eg, this centrino box isn't getting into C3 because USB is active.
cat /proc/acpi/processor/CPU0/power active state: C2 default state: C1 bus master activity: ffffffff states: C1: promotion[C2] demotion[--] latency[000] usage[00000010] *C2: promotion[C3] demotion[C1] latency[001] usage[00370077] C3: promotion[--] demotion[C2] latency[085] usage[00000000]
cheers, -Len
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