#Keybind #shortcuts
#linux #debian #ubuntu #KDE

#howTo set a keyboard key to turn the screen off.

Creating a shortcut in settings -> shortcuts -> power management -> turn off screen doesn't work correctly.

To solve this create a customized shortcut:
Settings -> custom shortcuts -> EDIT - new -local shortcut - command

Enter as command line:
sleep 1; xset dpms force off

[sleep 1] delays the command for a second. This apparently solves the problem.

@utopiarte @tutorial @studi0

#linux #debian #ubuntu #ubuntuStudio

About #lts #lowLatency and #hwe:

* "generic" is your standard Ubuntu kernel.

* "lowlatency" is a kernel optimized to minimize latency (delays) when working with audio

* "hwe" is a metapackage designed for the Ubuntu long term releases. "hwe" stands for "Hardware enablement". Installing this package will update the kernel for #LTS releases to newer versions, so LTS releases continue to support recent hardware.

@utopiarte
@tutorial @studi0

To be able to run the latest version of #OBS, you need to install the respective PPA:
sudo add-apt-repository ppa:obsproject/obs-studio
sudo apt update
sudo apt install obs-studio

obsproject.com/download

#OBStutorial

OBS itself is a wide spread and useful tool to do screen-capture movies as well as live streams.
This is how a standard setup of OBS looks like.
While in the upper section you have kind a WYSIWYG, "what you see is what you get" window, below you have several sections of settings.
The first box is for to administer the actual scenes compilation (1).
The next box is for the elements that compose the respective scene (2), than comes the a audio mixer (3), a section for transition settings (4) and a panel for the main functions (5) as well as a tab for the general settings (6) of the profile in use.

#OBS creates it's screen videos in the format [.mkv] as this is the best way to recover videos that for some reason are interrupted while recording. You can set in the settings option that those videos are reencoded after ending the recording into [.mp4] videos. The size of those mp4-videos can be reduced with #ffmpeg via the console with the following simple commands, just copy/paste them:
[CTRL+c] --> [SHIFT+CTRL+v]

Make sure you are in the folder the file(s) are located.

Reencoding a single file:
ffmpeg -i OBSvideofilename.mp4 -map_metadata 0 -movflags +faststart -c:a copy OBSvideofilename_comp.mp4

To process all [.mp4] files in the folder use the following command:
for f in *.mp4; do ffmpeg -i "$f" -map_metadata 0 -movflags +faststart -c:a copy "${f%}_comp.mp4"; done

@utopiArte