I’m not sure how it works for KDE and sddm but on gdm it is possible to copy the monitors.xml config file to a certain directory to fix that. After doing so, the login and lock screen settings are synced between the desktop environment and display manager. Not sure how to do it for sddm but I’m sure there’s a way, maybe a script with the correct xrandr commands could solve that.
Edit: monitors.xml, not x11.conf
You should pickup a HackTV if you’re interested in SDR. Add on a portapack and you can scan ADS-B and a bunch of other stuff off internal battery power with no computer/tablet. And it has great driver and software support when you want to connect it to a computer. The only downside compared to more expensive radios like the kraken is that it’s half-duplex. But for how I use and for the price it that’s not a problem.
I might do a brief write up on setting up NTSC and PAL broadcasts if there’s any interest. It’s a neat little project to get some life out of an old CRT you might have lying around. Although I don’t believe the RTLSDR has enough bandwidth to fully cover a NTSC stream, but I have seen a write up where someone got it working with some compromises. I found a neat piece of software that uses ffmpeg and even has yt-dlp support and a GUI wrapper for it. I’m actually using it right now to play music videos, with a MTV logo and all. My understanding of antennas is…lackluster. It’s all over coax anyways to avoid any run-ins with the FCC.
This is the first time I’ve seen anything SDR related on lemmy. Please tell me there’s a community for us somewhere here, that’s one of the few things I still miss from reddit.
I was curious about this and found this KDE forum post that might help. Looks like you don’t even need a script.