numerous updates

system/vulkan.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+#
+# Purpose : Install the Vulkan driver for each Intel or AMD GPU in the machine.
+#           NVIDIA's Vulkan driver comes with nvidia-utils (see nvidia.sh).
+
+set -e
+
+source "$HOME/.local/share/coredesktop/utils.sh"
+
+# Read vendor IDs from sysfs: lspci needs pciutils and wakes suspended GPUs
+PACKAGES=()
+for device in /sys/bus/pci/devices/*; do
+  [[ $(< "$device/class") == 0x03* ]] || continue
+  case "$(< "$device/vendor")" in
+    0x8086) PACKAGES+=(vulkan-intel) ;;
+    0x1002) PACKAGES+=(vulkan-radeon) ;;
+  esac
+done
+
+if (( ${#PACKAGES[@]} > 0 )); then
+  mapfile -t PACKAGES < <(printf '%s\n' "${PACKAGES[@]}" | sort -u)
+  install_packages "${PACKAGES[@]}"
+else
+  echo "No Intel or AMD GPU found."
+fi