gkrellm-leds software package provides Keyboard LED monitor for GKrellM, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gkrellm-leds
gkrellm-leds is installed in your system.
Make ensure the gkrellm-leds package were installed using the commands given below,
$ sudo dpkg-query -l | grep gkrellm-leds *
You will get with gkrellm-leds package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | X Window System software |
| Package | gkrellm-leds |
| Version | 0.8.0-1.2 |
| Description | Keyboard LED monitor for GKrellM |
| Sub Section | X226 |