Wifi on Raspberry Pi 3

February 18, 2024 - 1 min read

Problem Getting wifi working on the Raspberry Pi 3 B+ Solution My regular approach is to get things working through wpa_supplicant and dhcpd but the Raspbian lite OS doesn’t come with dhcpd installed. So we need to do it with NetworkManager. To list all available wifi networks: nmcli dev wifi connect to your network: nmcli dev wifi connect YourNetworkSSID password YourNetworkPassword Ensure you autoconnect on reboot: nmcli con show YourNetworkSSID | grep autoconnect Look for yes on the connection.

Wayland Screen Priorities not preserved across boots

February 12, 2024 - 1 min read

Problem I swapped the outputs for my monitors and since then I need to regularly go to Settings > Display and Monitor > Display Configuration > Change Screen Priorities. Solution I added xrandr --output DP-2 --primary to /usr/share/sddm/scripts/Xsetup. This didn’t seem to help as the primary window was still the vertical DP-1 window after reboot. Then I found a solution that seems so bizzare I had to write up a post.

Display Manager Query

February 12, 2024 - 1 min read

Problem This one is a short one. I always forget what my display manager is and when i run into issues on my Wayland system I typically will need to search how to find out what display manager I’m using. So this time i’m just going to make a quick post so I ‘remember’. Solution systemctl status display-manager This will spit out the service that’s handling display

Starting tmux over SSH on olimex with kitty term

February 7, 2024 - 1 min read

Problem I wanted to connect to my olimex from my arch linux desktop. ssh is working nicely but after sshing in I could not tmux as xterm-kitty (my terminal is kitty) is not recognized. olimex@a64-olinuxino:~$ tmux missing or unsuitable terminal: xterm-kitty Solution The solution was to set my local arch TERM variable to something more universally compatible. ChatGPT suggested xterm-256color. I could do something like this and put together a script in my ~/bin folder:

Powering on Monitors with ddcutil

May 1, 2023 - 6 mins read

Problem I have 4 monitors. Two of them are ASUS monitors (VS239) that are stacked one above the other on my left side. The issue I’m having is that these two monitors don’t wakeup when I power on my computer. Exploration Let’s begin by asking ChatGPT for a solution. It recommended I use ddcutil. The rest of the recommendations didn’t work too well but it gave us a nice starting point.