Just finished an install of Ubuntu 8.04 Hardy Heron, and I'm seeing this
same issue. The kernel is logging the following every six seconds:
Apr 27 21:28:58 sunshine kernel: [ 1353.176717] ACPI: Unable to turn
cooling device [d9dcff18] 'on'
This is with kernel 2.6.24-16-generic. No updates have been released
for Hardy as of this writing. (First time I've tried Linux on this
hardware, so I don't know if issue presents on this hardware with older
software.)
Hardware is an HP Pavilion a635w desktop, which uses an Asus A7V8X-LA
motherboard with a VIA KM400 chipset. I've got the latest BIOS from HP
installed. Power supply, chassis, and CPU fan are all spinning.
If I rmmod the "thermal" module, log messages cease; if I insmod it
again they start up again.
No match for "PBLK" in any of the /var/log/{dmesg,messages,kern.log}
files. In an eyeball review, nothing leaps out at me for an obvious
cause, but I'm no expert at ACPI. I'll attach dmesg and dmidecode
output. If there's anything more I can do to assist, please let me
know.
** Attachment added: "dmesg output"
http://launchpadlibrarian.net/13975649/dmesg.out
--
ACPI: Unable to turn cooling...
https://bugs.launchpad.net/bugs/63550
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