The Plasma desktop for a newbie

So, having seen Norbert and @codewiz mentioning Plasma frequently, I decided to give it a try. My desktop box is Fedora33, which comes with a quite current version of Plasma. Some years ago, I tried gnome - but Gnomes “let’s make it as simple as possible, leave buttons out”-strategy does not stick well with me. I don’t want a dumbed down window manager. I use WindowMaker since dozends of years. It’s nice and lean, but does not seem to have a future with Wayland. [Read More]

HDMI grabbing: latency and streaming

The previous article introduces into HDMI grabbers on Linux. When is latency relevant? My first use case was to play a game on a device like the Nintendo Switch, with the HDMI output only visible via grabber. While playing with various options and software, I needed a way to nicely measure the latency between the HDMI signal output, and the picture displayed on my screen. How to do that? Best is to show the current time, sufficiently accurate, on both [Read More]

Linux and HDMI grabbing in 2020

HDMI grabbing? These are devices you connect you a computer (might be a tiny one like a Raspberry Pi), and which convert HDMI input from a cable into something useful for further processing. I’m sharing here details from my experiments with 2 grab devices, and using Linux for processing. So practically, what can I do with this? My usecase is that I have just a single monitor, with just a [Read More]