Public bug reported:
AMD Athlon 64x2 TK-55
Radeon X1200
Ubuntu & Xubuntu 9.04
Kernel 2.6.28-11-generic x86_64
First of all, this looks like bug #22336 from 2005-2006, It has happened 6
times while doing different things.
After several hours of npviewer being active in firefox
(3.0.10+nobinonly-0ubuntu0.9.04.1) the laptop suddenly shut off without warning.
Gimp (2.6.6-0ubuntu1) while doing different CPU demanding tasks (selection from
path in a large image, script-fu and others) same problem (shut down without
warning) appeared.
I've been having other problems with the video driver (radeonhd) since I
upgraded to jaunty, but this seems like an overheating problem.
I've been monitoring CPU's temperature via lm-sensors and it doesn't go below
64° C., critical temperature is 102° C.
CPU frecuency scaling "on demand" runs processor at 44% but simple task like
launching the gimp rises temperature 8° C and CPU frecuency to 100%.
Thanks.
Diego Liedo.
** Affects: ubuntu
Importance: Undecided
Status: New
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CPU overheating during intense use (regression)
https://bugs.launchpad.net/bugs/373921
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