I think the workaround for the problem is to install laptop-mode-tools and in /etc/laptop-mode/laptop-mode.conf change line:
BATT_HD_POWERMGMT=1
to
BATT_HD_POWERMGMT=254
This of course sets default disk APM to 254, but with laptop mode tools my WD Scorpio Blue 500GB stays pretty cool (about 43 degrees Celsius) and there is no idle drive "clicking" from now on. I've tested it on 11.04 and 10.04.
Maybe laptop-mode-tools should be installed by default on all laptops?
I think the workaround for the problem is to install laptop-mode-tools and in /etc/laptop- mode/laptop- mode.conf change line: POWERMGMT= 254
BATT_HD_POWERMGMT=1
to
BATT_HD_
This of course sets default disk APM to 254, but with laptop mode tools my WD Scorpio Blue 500GB stays pretty cool (about 43 degrees Celsius) and there is no idle drive "clicking" from now on. I've tested it on 11.04 and 10.04.
Maybe laptop-mode-tools should be installed by default on all laptops?