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]

What firmware

Dear Lazy Web, I have an [HP Envy J104TS]( touchsmart-15/specs.html) laptop. Recently I saw an interesting message in the kernel log. [99360.969652] [Firmware Bug]: battery: (dis)charge rate invalid. Does anybody know what firmware is it referring to here ? I don’t think the current set of firmwares shiped by linux are involved in battery related information. Is it the BIOS ? [95474.561491] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [95474.803578] r8169 0000:0f:00. [Read More]