Ryan Waldroop wrote: > @ Felipe: > > Actually, with further testing, my laptop appears to be fixed while on AC > power, but it's still cycling a lot on battery. The wiki page linked in the > opening bug post has a three step process to check if everything is fixed > and change the values if you like. For me, I didn't want everything set to > 255, so I set both AC and Battery to 254. This seems to be working well for > me.
The fix that has now been applied is the Debian fix, which purposely leaves the power management (and therefore the cycling) enabled when the laptop is working on battery. This is for safety reasons: it is assumed that the laptop is working on battery when it is being carried around, and it is much safer to park the heads in such situations. Also, we did not want to increase the power usage while in battery mode! This does mean that the drive lifetime still becomes shorter, but since battery-mode usage is limited by battery life span, required recharge times, and general usage patterns, this is already a much safer situation. (This is, however, not configurable. If you want that, install laptop-mode-tools and let that handle it. The acpi-support fix detects if laptop-mode-tools handles it, and leaves it to laptop-mode-tools in that case.) Cheers, Bart -- High frequency of load/unload cycles on some hard disks may shorten lifetime https://bugs.launchpad.net/bugs/59695 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs