http://bugzilla.kernel.org/show_bug.cgi?id=14529
Summary: Toshiba M900: temperature's too high
Product: ACPI
Version: 2.5
Kernel Version: 2.6.30
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Power-Fan
AssignedTo: acpi_power-...@kernel-bugs.osdl.org
ReportedBy: brice.br...@gmail.com
Regression: No
I recently got a Toshiba Portégé M900. Running Debian Sid on it. Normal
operating temperature is around 75C (degrees Celsius). When performing CPU
intensive operations (Matlab computations for instance), it goes up to 98C and
oscillates between 98C and 95C.
$ cat /proc/acpi/thermal_zone/TZ0/trip_points
critical (S5): 108 C
passive: 101 C: tc1=30 tc2=30 tsp=50 devices=P001 P002
active[0]: 98 C: devices=FAN0
active[1]: 82 C: devices=FAN1
active[2]: 72 C: devices=FAN2
active[3]: 62 C: devices=FAN3
active[4]: 57 C: devices=FAN4
active[5]: 45 C: devices=FAN5
I cannot believe these are normal operating temperature. The fan that goes on
at 98 degrees, is the one that goes on at startup and under windows (normal
operating temperature around 45C).
My idea is that fan ids got messed up somehow: FAN0 should be active at 45C,
then FAN1, etc.
98C cannot be healthy for the CPU... and normal operating temp of 75 is too
hot: it becomes very uncomfortable for the hands after prolonged utilization.
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