New answers tagged power-management
Caffeine is a great tool that you can control from the KDE system tray. You can manually use it to turn power-saving on or off. An even better function is to list processes that will trigger suspension of power-saving. However, I think that it can only suppress screensavers and suspending together. Caveat: I haven't used caffeine recently, since it doesn't ...
dd's direct flag ought to bypass the (host) cache, and force I/O to be sent to the drive: dd if=/dev/sda bs=4096 count=1 of=/dev/null iflag=direct ^^^^^^^^^^^^ Testing on my machine, this definitely makes the disk activity light blink. It doesn't blink (at least the second time) without the iflag.
To disable partition to be mounted at startup you need to edit /etc/fstab. To have your HDD not automounted when you boot, add one line for each partition, such as: /dev/sdb5 / auto noauto 0 0 UPDATE: sudo hdparm -y /dev/sdb -y Force an IDE drive to immediately enter the low power consump‐ tion standby mode, usually causing it to spin ...
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