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[polycarbonate1 <polycarbonate1@xxxxxxxxx>]

Since early 2008 my MBA21 has had a CPU idle temperature of 62-67 degC,
with any kind of load getting it dangerously hot (>80 degC). On a
handful of occasions thermal cut-out (not sure if this is in the CPU
itself or the SMC) has kicked in and halted the CPU. My SMC is at 1.14.
The heat issues are apparent under Ubuntu, Debian, and Cesium, 32 and 64
bit with various kernels. Booting to Mac OS gets the fans running
significantly more, although not bringing temperatures down much. I did
not have any temperature issues under any OS before updating from Tiger
to Leopard (which included an SMC update). Rather than the CPU, the
majority of heat appears to come from the power supply area, leading me
to believe that the CPU is possibly being overheated by an external heat
source. Having the fans running all the time is of course detrimental to
battery life, but I'm not sure that's the only reason my system
constantly draws 8-13 Watts.

-- 
WARNING: Intrepid might burn down MacBook Pro
https://bugs.launchpad.net/bugs/262550
You received this bug notification because you are a member of Mactel
Support, which is the registrant for Mactel Support.

Status in Mactel Support: Fix Released
Status in Ubuntu Release Notes: Fix Released
Status in “linux” package in Ubuntu: Fix Released
Status in “linux” source package in Intrepid: New

Bug description:
Binary package hint: linux-image-2.6.27-1-generic

Testing Ubuntu 8.10 Alpha 4 64-Bit on a MacBook Pro rev. 3. Installing today's updates, the MacBook gets extremely hot and automatically goes into standby. This looks like an emergency standby caused by the EFI or something because it got overheated. Unless you put a metal plate or something under it, the fan runs on highest level at full power, which is not the usual.

Is there a tool you can see the CPU temperature with?