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You can get around the missing ID pin on Dell Laptop chargers by adding (as root) processor.ignore_ppc=1 to your GRUB_CMDLINE_LINUX_DEFAULT line in your /etc/default/grub file. GRUB_CMDLINE_LINUX_DEFAULT="processor.ignore_ppc=1" afterwards run: sudo update-grub then reboot. Note: this will allow your normal CPU frequency scaling to work properly, just ...


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Yes. If you want something that is fairly straightforward, you can use TLP, which is a command-line power management tool developed by the folks at linrunner (see docs here). Otherwise, check out the Ubuntu Wiki on the subject, it is fairly comprehensive and has some useful tweaks: https://wiki.ubuntu.com/PowerManagement


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What worked for me was going to control panel, then power options. Then you see plans shown on battery meter and show/hide additional plans. for all the plans change the settings to whichever brightness you always want it to be. Please reply if you have any questions.


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No, nor those in /usr/lib/pm-utils/sleep.d. But it runs all scripts (not service files) in /lib/systemd/system-sleep/ with executable bits set. Here's an example one for calling pm-powersave, modified from /usr/lib/pm-utils/sleep.d/00powersave. #!/bin/sh # do not run pm-powersave on ARM during suspend; the 1.5 seconds that it takes # to run it don't ...


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I experienced similar problem after updating ubuntu 15.04. Screen went dark after the ubuntu logo appears but was able to use TTY. I uninstalled the ubuntu desktop environment and installed genome and it started working. The codes i used are sudo apt-get remove ubuntu-desktop unity && sudo apt-get autoremove sudo apt-get install gnome I didn't ...


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It's clearly defined on the sliding bar. As APM level increase as performance is better but consumes much power, but as you do down the performance decrease while saving more power. So you have to choose what you want? you want power saving or you care much for performance so move the slider to your needs.



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