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install/graphics/amdgpu/install_amdgpu.sh

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+#!/bin/bash
+
+# Script Name: setup_amdgpu.sh
+# Description: Automates the setup and configuration of the amdgpu driver on Arch Linux.
+# Author: ChatGPT
+# Date: 2025-01-21
+# Version: 1.2
+
+# Exit immediately if a command exits with a non-zero status.
+set -e
+
+# Variables
+GRUB_CONFIG="/etc/default/grub"
+XORG_CONFIG="/etc/X11/xorg.conf"
+BACKUP_SUFFIX=".backup_$(date +%F_%T)"
+AMDGPU_PACKAGES=("amdgpu" "mesa" "mesa-vulkan-radeon")
+DEPENDENCIES=("yay" "git" "base-devel")
+GRUB_PARAMETERS="amdgpu.si_support=1 radeon.si_support=0"
+
+# Functions
+
+# Automatic Privilege Escalation
+ensure_root() {
+    if [ "$(id -u)" -ne 0 ]; then
+        echo "Script is not running as root. Attempting to elevate privileges..."
+        exec sudo "$0" "$@"
+    fi
+}
+
+# Trap Interrupt Signals
+trap_interrupt() {
+    trap "echo 'Script interrupted by user. Exiting...'; exit 1" INT TERM
+}
+
+# Display Help
+show_help() {
+    echo "Usage: sudo bash setup_amdgpu.sh [OPTIONS]"
+    echo ""
+    echo "Options:"
+    echo "  -h, --help         Display this help message and exit."
+    echo "  install            Install amdgpu and related packages."
+    echo "  configure-grub     Modify GRUB configuration to prefer amdgpu driver."
+    echo "  backup-xorg        Backup existing Xorg configuration."
+    echo "  generate-xorg      Generate new Xorg configuration for amdgpu."
+    echo "  update-mesa        Update Mesa packages."
+    echo "  install-deps       Install necessary dependencies (e.g., yay)."
+    echo "  reboot             Reboot the system to apply changes."
+    echo "  verify             Verify driver usage and renderer."
+    echo ""
+    echo "If no valid option is provided, the help message will be displayed."
+}
+
+# Install Dependencies
+install_dependencies() {
+    echo "Checking and installing necessary dependencies..."
+    for dep in "${DEPENDENCIES[@]}"; do
+        if ! command -v "$dep" >/dev/null 2>&1; then
+            echo "Installing dependency: $dep"
+            if [ "$dep" == "yay" ]; then
+                pacman -S --needed git base-devel --noconfirm
+                git clone https://aur.archlinux.org/yay.git /tmp/yay
+                cd /tmp/yay && makepkg -si --noconfirm
+                cd ~
+                rm -rf /tmp/yay
+            else
+                pacman -S --needed "$dep" --noconfirm
+            fi
+        else
+            echo "Dependency '$dep' is already installed. Skipping."
+        fi
+    done
+    echo "Dependency installation completed."
+}
+
+# Install amdgpu and related packages
+install_packages() {
+    echo "Checking and installing necessary packages..."
+    for pkg in "${AMDGPU_PACKAGES[@]}"; do
+        if ! pacman -Qs "^${pkg}$" > /dev/null ; then
+            echo "Installing package: $pkg"
+            pacman -S --noconfirm "$pkg"
+        else
+            echo "Package '$pkg' is already installed. Skipping."
+        fi
+    done
+    echo "Package installation completed."
+}
+
+# Modify GRUB configuration
+configure_grub() {
+    echo "Configuring GRUB to prefer amdgpu driver..."
+    if grep -q "$GRUB_PARAMETERS" "$GRUB_CONFIG"; then
+        echo "GRUB is already configured with the necessary parameters. Skipping."
+    else
+        echo "Backing up existing GRUB configuration..."
+        cp "$GRUB_CONFIG" "${GRUB_CONFIG}${BACKUP_SUFFIX}"
+        echo "Adding amdgpu parameters to GRUB_CMDLINE_LINUX..."
+        sed -i "s/^GRUB_CMDLINE_LINUX=\"\(.*\)\"/GRUB_CMDLINE_LINUX=\"\1 $GRUB_PARAMETERS\"/" "$GRUB_CONFIG"
+        echo "Updating GRUB configuration..."
+        grub-mkconfig -o /boot/grub/grub.cfg
+        echo "GRUB configuration updated successfully."
+    fi
+}
+
+# Backup Xorg configuration
+backup_xorg() {
+    echo "Backing up existing Xorg configuration..."
+    if [ -f "$XORG_CONFIG" ]; then
+        cp "$XORG_CONFIG" "${XORG_CONFIG}${BACKUP_SUFFIX}"
+        echo "Backup created at ${XORG_CONFIG}${BACKUP_SUFFIX}"
+    else
+        echo "No existing Xorg configuration found. Skipping backup."
+    fi
+}
+
+# Generate new Xorg configuration for amdgpu
+generate_xorg() {
+    echo "Generating new Xorg configuration for amdgpu..."
+    Xorg -configure &> /dev/null
+    if [ -f "$HOME/xorg.conf.new" ]; then
+        mv "$HOME/xorg.conf.new" "$XORG_CONFIG"
+        echo "New Xorg configuration generated at $XORG_CONFIG"
+    else
+        echo "Failed to generate new Xorg configuration. Please check X server logs."
+        exit 1
+    fi
+}
+
+# Update Mesa packages
+update_mesa() {
+    echo "Updating Mesa packages..."
+    pacman -Syu --noconfirm mesa mesa-vulkan-radeon
+    echo "Mesa packages updated successfully."
+}
+
+# Reboot the system
+reboot_system() {
+    echo "Rebooting the system to apply changes..."
+    reboot
+}
+
+# Verify driver usage and renderer
+verify_setup() {
+    echo "Verifying driver usage..."
+    lspci -k | grep -EA3 'VGA|3D|Display'
+
+    echo ""
+    echo "Checking OpenGL renderer:"
+    if command -v glxinfo >/dev/null 2>&1; then
+        glxinfo | grep "OpenGL renderer"
+    else
+        echo "'glxinfo' is not installed. Installing mesa-demos for glxinfo..."
+        pacman -S mesa-demos --noconfirm
+        glxinfo | grep "OpenGL renderer"
+    fi
+
+    echo ""
+    echo "Checking Vulkan renderer:"
+    if command -v vulkaninfo >/dev/null 2>&1; then
+        vulkaninfo | grep "deviceName"
+    else
+        echo "'vulkaninfo' is not installed. Installing vulkan-tools..."
+        pacman -S vulkan-tools --noconfirm
+        vulkaninfo | grep "deviceName"
+    fi
+}
+
+# Handle Unrecognized Commands
+unrecognized_command() {
+    echo "Error: Unrecognized command '$1'"
+    echo ""
+    show_help
+    exit 1
+}
+
+# Enhanced Error Handling
+handle_error() {
+    echo "An unexpected error occurred. Exiting..."
+    exit 1
+}
+
+# Main Script Logic
+
+# Ensure the script is run as root
+ensure_root "$@"
+
+# Trap interrupt signals
+trap_interrupt
+
+# If no arguments are provided, show help
+if [ "$#" -eq 0 ]; then
+    show_help
+    exit 0
+fi
+
+# Parse command-line arguments
+case "$1" in
+    -h|--help)
+        show_help
+        ;;
+    install-deps)
+        install_dependencies
+        ;;
+    install)
+        install_packages
+        ;;
+    configure-grub)
+        configure_grub
+        ;;
+    backup-xorg)
+        backup_xorg
+        ;;
+    generate-xorg)
+        generate_xorg
+        ;;
+    update-mesa)
+        update_mesa
+        ;;
+    reboot)
+        reboot_system
+        ;;
+    verify)
+        verify_setup
+        ;;
+    *)
+        unrecognized_command "$1"
+        ;;
+esac
+
+# Trap any unexpected errors
+trap 'handle_error' ERR