fix(nvidia): fix flickering on sway

nixos/modules/desktop/sway/default.nix

@@ -40,10 +40,8 @@ let
       # gsettings set $gnome_schema gtk-theme 'Dracula'
 
       # https://github.com/crispyricepc/sway-nvidia/blob/2101a18698151a61266740f1297158119bf660ac/wlroots-env-nvidia.sh
-      # Hardware cursors not yet working on wlroots
-      export WLR_NO_HARDWARE_CURSORS=1
-      # Set wlroots renderer to Vulkan to avoid flickering
-      export WLR_RENDERER=vulkan
+      # Intel primary, NVIDIA secondary
+      export WLR_DRM_DEVICES=/dev/dri/card1:/dev/dri/card0
       # General wayland environment variables
       export XDG_SESSION_TYPE=wayland
       export QT_QPA_PLATFORM=wayland
@@ -52,10 +50,8 @@ let
       export MOZ_ENABLE_WAYLAND=1
       export MOZ_USE_XINPUT2=1
       # OpenGL Variables
-      export GBM_BACKEND=nvidia-drm
       export __GL_GSYNC_ALLOWED=0
       export __GL_VRR_ALLOWED=0
-      export __GLX_VENDOR_LIBRARY_NAME=nvidia
       # Xwayland compatibility
       export XWAYLAND_NO_GLAMOR=1
     '';
@@ -105,7 +101,7 @@ in {
       noto-fonts
       noto-fonts-cjk-sans
       noto-fonts-cjk-serif
-      noto-fonts-emoji
+      noto-fonts-color-emoji
     ];
 
     hardware.graphics.enable = true;
@@ -115,9 +111,8 @@ in {
       dbus.enable = true;
       displayManager.ly.enable = true;
       gnome.gnome-keyring.enable = true;
-      power-profiles-daemon.enable = true;
-      xserver.videoDrivers = [ "nouveau" ];
-      # xserver.videoDrivers = [ "nvidia" ];
+      # xserver.videoDrivers = [ "nouveau" ];
+      xserver.videoDrivers = [ "nvidia" ];
     };
 
     xdg.portal = {

nixos/modules/hardware/nvidia/default.nix

@@ -25,6 +25,8 @@ in {
   };
 
   config = lib.mkIf cfg.enable {
+    boot.kernelParams = [ "nvidia_drm.fbdev=1" ];
+
     hardware = {
       graphics = {
         enable = true;
@@ -44,7 +46,7 @@ in {
         open = false;
         branch = "stable";
         # To override the default package set by the branch:
-        #package = config.boot.kernelPackages.nvidiaPackages.stable;
+        package = config.boot.kernelPackages.nvidiaPackages.latest;
         # Modesetting is required.
         modesetting.enable = true;
         nvidiaSettings = cfg.gui-settings;
@@ -53,9 +55,6 @@ in {
           finegrained = do-offloading;
         };
 
-        # Avoid flickering
-        forceFullCompositionPipeline = true;
-
         prime = lib.mkMerge [
           (lib.mkIf do-offloading {
             offload = {

scripts/battery.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+capacity="$(cat /sys/class/power_supply/BAT0/capacity)"
+status="$(cat /sys/class/power_supply/BAT0/status)"
+
+if [ "${status}" = "Charging" ]; then
+    icon="\ue55b"
+elif [ "${capacity}" -ge 90 ]; then
+    icon="\uf240"
+elif [ "${capacity}" -ge 75 ]; then
+    icon="\uf241"
+elif [ "${capacity}" -ge 50 ]; then
+    icon="\uf242"
+elif [ "${capacity}" -ge 25 ]; then
+    icon="\uf243"
+else
+    icon="\uf244"
+fi
+
+printf '{"text": "%s%% %s", "tooltip": "Status: %s", "class": "%s"}\n' \
+    "${capacity}" "${icon}" "${status}" "${status}"

stow/waybar/.config/waybar/modules.json

@@ -77,6 +77,12 @@
         }
     },
 
+    "custom/battery": {
+        "exec": "bash ${SCRIPT_DIR}/battery.sh",
+        "return-type": "json",
+        "interval": 60
+    },
+
     "custom/control-center": {
         "format": "\uf085", /*   */
         "tooltip": false
@@ -263,7 +269,7 @@
         "orientation": "inherit",
         "modules": [
             /* Preview */
-            "battery",
+            /* "battery", */ "custom/battery",
             /* Most-left */
             "custom/system-shutdown",
             "custom/system-reboot",