This patch tries to make sure that /etc/acpi/*.d/90-hdparm.sh does not
overwrite settings made by laptop-mode-tools or hdparm. Each harddisk is
checked individually; APM settings are only applied if the drive is
neither controlled by /etc/laptop-mode/laptop-mode.conf nor by a
matching section in /etc/hdparm.conf.
However, the proposed patch does NOT check whether the device section in
/etc/hdparm.conf actually contains an APM setting. This would require a lot of
functionality that is already present in /lib/udev/hdparm. Maybe this
functionality should be exported to a small parser lib for the hdparm.conf file
format?
Note that this problem only affects people who created a drive section in
hdparm.conf and left out the APM value (which seems unlikely; most people seem
to edit /etc/hdparm.conf because they *DO* want to set a specific APM value).
The default behaviour does not differ from the current implementation of
90-hdparm.sh
** Attachment added: "patch against
/etc/acpi/{ac.d,battery.d,resume.d,start.d}/90-hdparm.sh"
http://launchpadlibrarian.net/22225884/90-hdparm.sh.diff
--
acpi-support's 90-hdparm.sh overwrites hdparm.conf's apm settings
https://bugs.launchpad.net/bugs/318980
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