Vendor the command set the menu and shell depend on

2026-09-19 23:57:12 -04:00
parent 9501f2bb4d
commit c5434026a8
179 changed files with 12414 additions and 54 deletions
@@ -0,0 +1,119 @@
+#!/bin/bash
+
+# blob:summary=Toggle dedicated vs integrated GPU mode via supergfxd (for hybrid gpu laptops, like Asus G14).
+# blob:requires-sudo=true
+
+install_root_file() {
+  local source="$1"
+  local destination="$2"
+  local mode="$3"
+  local stage
+
+  stage=$(sudo /usr/bin/mktemp -- "${destination%/*}/.${destination##*/}.blob.XXXXXX") || return 1
+  safe_stage_path "$stage" "$destination" || return 1
+
+  if sudo /usr/bin/install -m "$mode" -o root -g root -T "$source" "$stage" &&
+    sudo /usr/bin/mv -Tf -- "$stage" "$destination"; then
+    return 0
+  else
+    safe_stage_path "$stage" "$destination" && sudo /usr/bin/rm -f -- "$stage"
+    return 1
+  fi
+}
+
+safe_stage_path() {
+  local stage="$1"
+  local destination="$2"
+  local prefix suffix
+
+  prefix="${destination%/*}/.${destination##*/}.blob."
+  [[ $stage == "$prefix"* ]] || return 1
+  suffix=${stage#"$prefix"}
+  [[ $suffix =~ ^[[:alnum:]]{6}$ ]]
+}
+
+if blob-cmd-missing supergfxctl; then
+  blob-pkg-add supergfxctl
+
+  # Create config before starting service to prevent hang on first boot
+  sudo tee /etc/supergfxd.conf >/dev/null <<'CONF'
+{
+  "mode": "Hybrid",
+  "vfio_enable": true,
+  "vfio_save": false,
+  "always_reboot": false,
+  "no_logind": false,
+  "logout_timeout_s": 180,
+  "hotplug_type": "None"
+}
+CONF
+
+  sudo systemctl enable --now supergfxd
+fi
+
+gpu_mode=""
+for attempt in {1..3}; do
+  if gpu_mode=$(timeout --kill-after=1s 3s supergfxctl -g 2>/dev/null) && [[ -n $gpu_mode ]]; then
+    break
+  fi
+
+  gpu_mode=""
+  (( attempt < 3 )) && sleep 1
+done
+
+if [[ -z $gpu_mode ]]; then
+  echo "supergfxd is not responding. Try again, or check: systemctl status supergfxd" >&2
+  exit 1
+fi
+
+case "$gpu_mode" in
+"Integrated")
+  if gum confirm "Enable dedicated GPU and reboot?"; then
+    # Switch to hybrid mode
+    sudo sed -i "s/\"mode\": \".*\"/\"mode\": \"Hybrid\"/" /etc/supergfxd.conf
+
+    # Let hybrid mode be the default after system sleep
+    sudo rm -rf /usr/lib/systemd/system-sleep/force-igpu
+
+    # Remove the startup delay override (not needed for Hybrid mode)
+    sudo rm -rf /etc/systemd/system/supergfxd.service.d/delay-start.conf
+
+    blob-system-reboot
+  fi
+  ;;
+"Hybrid")
+  if gum confirm "Use only integrated GPU and reboot?"; then
+    # Delay supergfxd startup to avoid race condition with display manager
+    # that can cause system freeze when booting in Integrated mode
+    sudo mkdir -p /etc/systemd/system/supergfxd.service.d
+    if ! install_root_file "$BLOB_PATH/default/systemd/system/supergfxd.service.d/delay-start.conf" \
+      /etc/systemd/system/supergfxd.service.d/delay-start.conf 0644; then
+      echo "Could not install the supergfxd startup-delay override" >&2
+      exit 1
+    fi
+
+    # Publish the self-guarding sleep hook before enabling Integrated mode. It
+    # remains inert while the config says Hybrid, so any failed step is safe to
+    # retry without leaving the GPU config partially switched.
+    sudo mkdir -p /usr/lib/systemd/system-sleep
+    if ! install_root_file "$BLOB_PATH/default/systemd/system-sleep/force-igpu" \
+      /usr/lib/systemd/system-sleep/force-igpu 0755; then
+      echo "Could not install the force-igpu system-sleep hook" >&2
+      exit 1
+    fi
+
+    # Switch both settings in one atomic config rewrite only after every
+    # supporting file has been installed successfully.
+    sudo sed -i \
+      -e 's/"mode": ".*"/"mode": "Integrated"/' \
+      -e 's/"vfio_enable": false/"vfio_enable": true/' \
+      /etc/supergfxd.conf
+
+    blob-system-reboot
+  fi
+  ;;
+*)
+  echo "Hybrid GPU not found or in unknown mode."
+  exit 1
+  ;;
+esac