LUKS Headless Laptop

Working around LUKS password in laptops that now transitioned to headless machines

As we grow old, so do our computing machines. And just like we don’t decommission ourselves, so should be the case of the machines. They should be semi-retired, delegating major tasks to newer machines while they can still serve some less demaning work: File Servers, UPNP Servers et cetera. It is common on a Debian installer based derivative, and otherwise too, to use block encryption on Linux. With machines from this decade, I think we’ve always had CPU extension for encryption. [Read More]

Laptop Mode Tools 1.74

Power Savings tool for Linux

Laptop Mode Tools 1.74 Laptop Mode Tools version 1.74 has been released. This release includes important bug fixes, some defaults settings updated to current driver support in Linux and support for devices with nouveau based nVIDIA cards. A filtered list of changes is mentioned below. For the full log, please refer to the git repository 1.74 - Sat Jul 18 19:10:40 IST 2020 * With 4.15+ kernels, Linux Intel SATA has a better link power saving policy, med_power_with_dipm, which should be the recommended one to use * Disable defaults for syslog logging * Initialize LM_VERBOSE with default to disabled * Merge pull request #157 from rickysarraf/nouveau * Add power saving module for nouveau cards * Disable ethernet module by default * Add board-specific folder and documentation * Add execute bit on module radeon-dpm * Drop unlock because there is no lock acquired Resources Source tarball, Feodra/SUSE RPM Packages available at project’s release page Debian packages will be available soon in Unstable. [Read More]

Linux Power Savings 2016

Having moved to a new place, now at times, I also have to deal with power outages. As heat increases, the power outages will be much longer and more frequent. So much, that UPS and Power Inverters run out. Such are ideal times to measure idle power consumption for my laptop. Here’s what my default (and idle) OS looks like. It should be standard to most “typical” users. Some minor odds could be apport, dnsmasq, and maybe, tor. [Read More]