Force software cursors on nouveau to fix invisible mouse pointer

The nouveau DRM driver does not display the hardware cursor plane on many
older NVIDIA GPUs (e.g. Apple's GeForce 320M / MCP89 in the 2010 Mac mini),
leaving the mouse pointer invisible on the physical display under Hyprland.

Add a hardware fix that detects nouveau as the active DRM driver and forces
software cursors via `cursor { no_hardware_cursors = true }` in the user's
Hyprland input.conf. Keying on the active driver rather than a GPU-model
regex covers every affected system, and the change is idempotent.

Author: stephentaylor-com

install/config/all.sh

@@ -40,6 +40,7 @@ run_logged $OMARCHY_INSTALL/config/hardware/printer.sh
 run_logged $OMARCHY_INSTALL/config/hardware/usb-autosuspend.sh
 run_logged $OMARCHY_INSTALL/config/hardware/ignore-power-button.sh
 run_logged $OMARCHY_INSTALL/config/hardware/nvidia.sh
+run_logged $OMARCHY_INSTALL/config/hardware/fix-nouveau-cursor.sh
 run_logged $OMARCHY_INSTALL/config/hardware/vulkan.sh
 
 run_logged $OMARCHY_INSTALL/config/hardware/intel/video-acceleration.sh

install/config/hardware/fix-nouveau-cursor.sh

@@ -0,0 +1,24 @@
+# Disable hardware cursors when the nouveau driver is in use.
+# The nouveau DRM driver does not display the hardware cursor plane on many
+# older NVIDIA GPUs (e.g. Apple's GeForce 320M / MCP89 in the 2010 Mac mini),
+# leaving the mouse pointer invisible on the physical display under Hyprland.
+# Forcing software cursors makes the pointer render correctly.
+#
+# nouveau only ever binds NVIDIA GPUs, so matching the driver line directly is
+# enough to mean "a GPU on this machine is driven by nouveau".
+if lspci -k | grep -qi 'Kernel driver in use: nouveau'; then
+  HYPR_INPUT="$HOME/.config/hypr/input.conf"
+
+  if [[ -f $HYPR_INPUT ]] && ! grep -q 'no_hardware_cursors' "$HYPR_INPUT"; then
+    echo "Detected nouveau driver. Forcing software cursors so the mouse pointer stays visible."
+
+    cat >>"$HYPR_INPUT" <<'EOF'
+
+# nouveau does not display the hardware cursor plane on many older NVIDIA GPUs,
+# leaving the pointer invisible on the physical display. Render it in software.
+cursor {
+  no_hardware_cursors = true
+}
+EOF
+  fi
+fi