Paul B. Mahol wrote:
On 12/21/08, Nathan Lay <ns...@comcast.net> wrote:
Paul B. Mahol wrote:
On 12/21/08, Nathan Lay <ns...@comcast.net> wrote:
acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.user_override: 0
hw.acpi.thermal.tz0.temperature: 37.0C
hw.acpi.thermal.tz0.active: -1
Is this one ever changed?
hw.acpi.thermal.tz0.passive_cooling: 1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 89.5C
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 93.0C
hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
This one means that coling will never be used, why:
my output looks like this:
hw.acpi.thermal.tz0._ACx: 85.0C 75.0C 60.0C 50.0C -1 -1 -1 -1 -1 -1
hw.acpi.thermal.tz0._TC1: 5
hw.acpi.thermal.tz0._TC2: 4
hw.acpi.thermal.tz0._TSP: 600
You can play with all thermal values once you enable:
hw.acpi.thermal.user_override
But acpi may redo such values again after some time.
You only real workaround is to use modified acpi ASL:
it is explained in handbook.
In my case I fixed in that way bogus kernel
message "_CRT value is absurd, ignored".
hw.acpi never displayed thermal values for some reason. However, after
loading acpi_ibm, I can query those values without a problem
dev.acpi_ibm.0.thermal: 49 41 33 48 27 -1 22 -1
I'm not sure the critical temperature (99C) is a problem, but what I
have observed is you should never be near it. None of these thinkpads
got over 80C under load with FreeBSD installed until recently. ACPI's
ASL does not appear to be the problem as it has worked correctly in the
past.
Until recenty when, can you point into svn revision?
If the same overheat happens with acpi disabled that I dont see how
freebsd acpi can help you.
Ok, I ran portupgrade on both systems with ACPI disabled. I do not
experience any overheating issues. The thinkpads also do not feel very
hot while building large ports like jdk16 and gcc42 as they do when ACPI
is enabled. As I said, the laptops only started recently overheating.
The T40 started overheating when CURRENT was installed and the T43
started overheating on a more recent STABLE. I'll try to pinpoint
exactly which STABLE build experienced this.
Best Regards,
Nathan Lay
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