Ubuntu – Find the power supply hardware information for a PC using Ubuntu’s command-line

command linehardwarepower-management

Is there a tool to print the power supply information, such as brand/model name and maximum (supported) output voltage? I need to add a second GPU and I would like to make sure it does support the extra voltage.

P.s: I already installed a secondary GPU when I had the access and I rushed outside the server room. When I later checked, the second GPU was not recognized (now that I don't have the access anymore!! :P) I wanted to make sure if the problem was the lack of power voltage as the GPU was working on another machine and is not faulty.

Currently, I don't have physical access to the PC currently (ssh only).

I have tried to see other posts, also the other exisiting tools, i.e., sudo dmidecode -t 39, sensors, and ipmitool, but none of them show the information I'm looking for.

Best Answer

To find the power supply information, use following command:

sudo dmidecode --type 39

The below command outputs a lot status and statistical information about the battery. The /org/... path can be found with the command upower -e (--enumerate).

upower -i /org/freedesktop/UPower/devices/battery_BAT0

The one I use mostly is this one :

sudo apt-get install lm-sensors
sudo sensors-detect

Choose YES to all.

sudo service kmod start

Use :

sensors

watch sensors

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Command Line – Permanently Disable Monitor Power Saver

#!/bin/bash
export DISPLAY=:0.0

if [ $# -eq 0 ]; then
  echo usage: $(basename $0) "on|off|status"
  exit 1
fi

if [ $1 = "off" ]; then
  echo -en "Turning monitor off..."
  xset dpms force off
  echo -en "done.\nCheck:"
  xset -q|grep "Monitor is"
elif [ $1 = "on" ]; then
  echo -en "Turning monitor on..."
  xset dpms force on
  echo -en "done.\nCheck:"
  xset -q|grep "Monitor is"
elif [ $1 = "status" ]; then
  xset -q|sed -ne 's/^[ ]*Monitor is //p'
else
  echo usage: $(basename $0) "on|off|status"
fi

Save this script in something like /usr/bin, give it a name (like switch_dpms) and make it executable with chmod 664 /usr/bin/switch_dpm.

Now all you need to do is add it to a cron job. So open your crontab file with:

crontab -e

and add this at the bottom:

@reboot /usr/bin/switch_dpms off

Every reboot it will turn dpms to off and you can also turn it on from commandline by doing /usr/bin/switch_dpms on or check its status with /usr/bin/switch_dpms status.

Source for the script

Ubuntu – Where to Find Compatible or Certified Hardware/PC Models

See the Ubuntu Certification website at:

http://www.ubuntu.com/certification/

Specifically, for desktops and laptops/netbooks, go directly to:

http://www.ubuntu.com/certification/desktop/

Best Answer

Related Solutions

Command Line – Permanently Disable Monitor Power Saver

Ubuntu – Where to Find Compatible or Certified Hardware/PC Models

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