diff --git a/root/defaults/startwm.sh b/root/defaults/startwm.sh
index 7cc479d2..71ebad95 100755
--- a/root/defaults/startwm.sh
+++ b/root/defaults/startwm.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Enable Nvidia GPU support if detected
-if which nvidia-smi; then
+if which nvidia-smi > /dev/null 2>&1 && ls -A /dev/dri 2>/dev/null && [ "${DISABLE_ZINK}" == "false" ]; then
   export LIBGL_KOPPER_DRI2=1
   export MESA_LOADER_DRIVER_OVERRIDE=zink
   export GALLIUM_DRIVER=zink