• 3 Posts
  • 8 Comments
Joined 1 year ago
cake
Cake day: June 22nd, 2023

help-circle



  • you are vulnerable during pairing which is for like a minute.

    I said this twice on the PSA: it’s hard to tell if your device is in discoverable mode, and it’s easy to forget it in that state, or start it accidentally. I’ve caught my devices accidentally in discoverable mode many times. You could have your PC a whole week in discoverable mode and never notice it, just by having a settings window left open.

    It’s more risk than most people should take, hence the warning.

    Still, if you’re comfortable with the risk, you’re free to change the config and allow insecure devices.




  • Wayland and X11 are protocols, they are essentially just documentation. You need an implementation to be able to actually run programs on it, called a compositor. People tend to think of X11 as a single software because historically Xorg became dominant as the main implementation of the specification, so most of us have only ever used Xorg (but Xorg is not the only implementation of X11, there are many others). Wayland, as a newer protocol, hasn’t undergone such consolidation yet, there are many competing compositors implementing the protocol in their own way. GNOME has one such compositor, and KDE has their own, and there are many others. So it’s not about “Desktop Environments” all running over the same compositor, as it was on Linux in the Xorg days. Instead, the Wayland features you get are the ones your choice of compositor has already implemented, and can vary between different compositors.



  • I believe the platform power profiles are standard nowadays and coded in the bios, so Linux should have access to them just like Windows does. You can use the powerprofilesctl command to list and change power profiles. Gnome also has a Power Mode switcher on the top menu, it’s the same thing.

    I can talk of my experience with the 2021 Asus ROG Strix G15, I have 3 power profiles:

    • performance: Power limits to max; Aggressive fan curve with speed limit to max. Generally loud fans. I need this to play demanding games in the summer.
    • balanced: Power limits to max; Moderate fan curve with a medium limit. Great perf (under sane ambient temp), while not too loud.
    • power-saver: Lowered power limits; Quiet fans.

    Those seem to correlate exactly with the power profiles in Armoury Crate: Turbo, Balanced and Silent respectively. I don’t think there’s any performance being left on the table.

    Gaming laptops with AMD CPU + AMD dGPU are a great suit for Linux gaming.

    Also, AMD GPUs benefit a lot from undervolting, which is safe to do. It’s free performance. I’ve made a simple systemd service to keep the undervolt always active: https://codeberg.org/jntesteves/amdgpu-tune