From 7272b213f7e2d01faf15a912e137f586c5781cff Mon Sep 17 00:00:00 2001
From: GaspardCulis <gasdev.lp@gmail.com>
Date: Fri, 10 Nov 2023 14:05:42 +0100
Subject: [PATCH] Added new x11-toggle-primary-gpu script & config

---
 bin/x11-toggle-primary-gpu                    | 81 +++++++++++++++++++
 home/xinitrc                                  | 17 ++--
 .../10-nvidia-drm-outputclass.conf            | 15 ++++
 misc/x11-toggle-gpu/20-amdgpu.conf            |  5 ++
 sync                                          |  2 +
 5 files changed, 115 insertions(+), 5 deletions(-)
 create mode 100755 bin/x11-toggle-primary-gpu
 create mode 100644 misc/x11-toggle-gpu/10-nvidia-drm-outputclass.conf
 create mode 100644 misc/x11-toggle-gpu/20-amdgpu.conf

diff --git a/bin/x11-toggle-primary-gpu b/bin/x11-toggle-primary-gpu
new file mode 100755
index 0000000..999602b
--- /dev/null
+++ b/bin/x11-toggle-primary-gpu
@@ -0,0 +1,81 @@
+#!/bin/bash
+
+SHARED_DIR='/home/gaspard/.local/share/x11-toggle-gpu'
+XORG_DIR='/etc/X11/xorg.conf.d'
+
+AMD_CONF_FILE='20-amdgpu.conf'
+NVIDIA_CONF_FILE='10-nvidia-drm-outputclass.conf'
+
+get-mode () {
+  if [ -f "$XORG_DIR/$NVIDIA_CONF_FILE" ]; then
+    echo 'NVIDIA'
+  else
+    echo 'AMD'
+  fi
+}
+
+check-config () {
+  if [ ! -d "$SHARED_DIR" ]; then
+    echo "[ERROR] Shared dir could not be found."
+    exit 1
+  fi
+
+  if [ ! -d "$XORG_DIR" ]; then
+    echo "[ERROR] X11 config dir could not be found."
+    exit 2
+  fi
+
+  if [ -f "$XORG_DIR/$AMD_CONF_FILE" ] && [ -f "$XORG_DIR/$NVIDIA_CONF_FILE" ]; then
+    echo "[ERROR] Corrupted configuration folder."
+    exit 3
+  fi
+
+  CONF_FILE="$AMD_CONF_FILE"
+  if [ "$(get-mode)" == "NVIDIA" ]; then
+    CONF_FILE="$NVIDIA_CONF_FILE"
+  fi
+
+  if ! cmp --silent $SHARED_DIR/$CONF_FILE $XORG_DIR/$CONF_FILE ; then
+    echo "[ERROR] Corrupted configuration file."
+    exit 4
+  fi
+
+}
+
+gpu-toggle () {
+  MODE="$(get-mode)"
+
+  if [ "$MODE" == "AMD" ]; then
+    rm "$XORG_DIR/$AMD_CONF_FILE"
+    cp "$SHARED_DIR/$NVIDIA_CONF_FILE" "$XORG_DIR/$NVIDIA_CONF_FILE"
+  elif [ "$MODE" == "NVIDIA" ]; then
+    rm "$XORG_DIR/$NVIDIA_CONF_FILE"
+    cp "$SHARED_DIR/$AMD_CONF_FILE" "$XORG_DIR/$AMD_CONF_FILE"
+  fi
+
+  echo "[INFO] Primary GPU configuration toggled to $(get-mode)."
+}
+
+check-config
+
+if [ "$1" == "get" ]; then
+  echo "$(get-mode)"
+  exit 0
+fi
+
+if [ "$1" == "toggle" ]; then
+  # ROOT NEEDED
+  if [ "$EUID" -ne 0 ]
+    then echo "[ERROR] Please run as root"
+    exit
+  fi
+
+  gpu-toggle
+  
+  exit 0
+fi
+
+echo "Usage: $0 {get, toggle}"
+exit 1
+
+
diff --git a/home/xinitrc b/home/xinitrc
index 56cad80..b982397 100755
--- a/home/xinitrc
+++ b/home/xinitrc
@@ -29,11 +29,18 @@ if [ -f "$usermodmap" ]; then
     xmodmap "$usermodmap"
 fi
 
-if [ -d /etc/X11/xinit/xinitrc.d ] ; then
-    for f in /etc/X11/xinit/xinitrc.d/?*.sh ; do
-        [ -x "$f" ] && . "$f"
-    done
-    unset f
+# if [ -d /etc/X11/xinit/xinitrc.d ] ; then
+#     for f in /etc/X11/xinit/xinitrc.d/?*.sh ; do
+#         [ -x "$f" ] && . "$f"
+#     done
+#     unset f
+# fi
+
+if type "x11-toggle-primary-gpu" > /dev/null; then
+    if [ "$(x11-toggle-primary-gpu get)" == "NVIDIA" ]; then
+        xrandr --setprovideroutputsource modesetting NVIDIA-0
+        xrandr --auto
+    fi
 fi
 
 setxkbmap fr
diff --git a/misc/x11-toggle-gpu/10-nvidia-drm-outputclass.conf b/misc/x11-toggle-gpu/10-nvidia-drm-outputclass.conf
new file mode 100644
index 0000000..a33043f
--- /dev/null
+++ b/misc/x11-toggle-gpu/10-nvidia-drm-outputclass.conf
@@ -0,0 +1,15 @@
+Section "OutputClass"
+    Identifier "AMD Graphics"
+    MatchDriver "amdgpu"
+    Driver "modesetting"
+EndSection
+
+Section "OutputClass"
+    Identifier "nvidia"
+    MatchDriver "nvidia-drm"
+    Driver "nvidia"
+    Option "AllowEmptyInitialConfiguration"
+    Option "PrimaryGPU" "yes"
+    ModulePath "/usr/lib/nvidia/xorg"
+    ModulePath "/usr/lib/xorg/modules"
+EndSection
diff --git a/misc/x11-toggle-gpu/20-amdgpu.conf b/misc/x11-toggle-gpu/20-amdgpu.conf
new file mode 100644
index 0000000..153e2dd
--- /dev/null
+++ b/misc/x11-toggle-gpu/20-amdgpu.conf
@@ -0,0 +1,5 @@
+Section "Device"
+	Identifier "AMD Graphics"
+	Driver "amdgpu"
+	Option "TearFree" "true"
+EndSection
diff --git a/sync b/sync
index 02b4298..63b5730 100755
--- a/sync
+++ b/sync
@@ -26,6 +26,7 @@ synced_files = [
     ('home/xinitrc', '~/.xinitrc'),
     ('misc/picom/', '~/.config/picom/'),
     ('misc/runst/', '~/.config/runst/'),
+    ('misc/x11-toggle-gpu/', '~/.local/share/x11-toggle-gpu/'),
 
     ('bin/swaylock-hyprland', '~/.local/bin/swaylock-hyprland'),
     ('bin/Hyprland', '~/.local/bin/Hyprland'),
@@ -34,6 +35,7 @@ synced_files = [
     ('bin/wtoggle-touchpad', '~/.local/bin/wtoggle-touchpad'),
     ('bin/togglescreen', '~/.local/bin/togglescreen'),
     ('bin/mc-key-fix', '~/.local/bin/mc-key-fix'),
+    ('bin/x11-toggle-primary-gpu', '~/.local/bin/x11-toggle-primary-gpu'),
 ]
 
 def save():