On Wed, 13 Jun 2012, John Magolske wrote: > I edited /etc/laptop-mode/laptop-mode.conf and changed this line [1] : > BATT_HD_POWERMGMT=1
Yikes, that kills HDDs! > I suppose battery life will take a hit...guess the tradeoff here is a > stuttering user-interface vs. battery life. Sooner or later I'll have Your HDD will be MUCH happier with a value of 254, unless you're into kicking the crap out of your box (when a value of 1 is much safer, since the HDD will race to unload heads and thus chances will be higher that the heads will be better secured against sudden impacts). > A low value means aggressive power management and a high value > means better performance. Possible settings range from values > 1 through 127 (which permit spin-down), and values 128 through > 254 (which do not permit spin-down). The highest degree of power > management is attained with a setting of 1, and the highest I/O > performance with a setting of 254. A value of 255 tells hdparm to > disable Advanced Power Management altogether on the drive Aggressive power management causes laptop HDDs to unload heads way too often, which greatly reduces their lifetime. This is well known in the ThinkPad communities. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120613211948.ga6...@khazad-dum.debian.net