nvidiactl: Pass legacy cards to nouveau driver

nvidiactl/nvidiactl

@@ -5,6 +5,13 @@ set_generic_mxgfx_link () {
   ln -sf /usr/share/mxgfx-generic /node/usr_share_mxgfx
 }
 
+
+if [ -d /sys/module/nouveau ] ; then
+    echo >&2 "NOTE: nouveau driver loaded already, using 'mxgfx-generic'."
+    set_generic_mxgfx_link
+    exit 0
+fi
+
 PCIIDHINT_DIR=/usr/share/nvidia/pciidhints
 
 kver=$(uname -r)
@@ -13,7 +20,6 @@ nvidiacards=( $(lspci -n | grep " 0300: 10de:" | cut -d ' ' -f 3) )
 
 nvver=${nvidiacards[0]}
 
-
 if [ -z ${nvver} ] ; then
     echo >&2 "WARNING: no nvidia card found.."
     set_generic_mxgfx_link
@@ -22,22 +28,20 @@ fi
 
 pciids="${PCIIDHINT_DIR}/${kver}-${nvver} ${PCIIDHINT_DIR}/${nvver}"
 
-
-leglvl="current"
-
 for leglvlhint in ${pciids} ; do
     if [ -h "${leglvlhint}" ] ; then
-        leglvl=$(readlink ${leglvlhint})
-        break
+        set_generic_mxgfx_link
+        test -e /lib/modules/${kver}/kernel/drivers/gpu/drm/nouveau/nouveau.ko && \
+        echo >&2 "NOTE: legacy nvidia card found, loading nouveau .." && \
+        modprobe nouveau && \
+        exit 0
+
+        echo >&2 "ERROR: nouveau module not available, choose a newer kernel!"
+        exit 1
     fi
 done
 
-nvlink=/usr/share/nvidia/kernel/${kver}/${leglvl}
-
-if [ ! -h ${nvlink} ] ; then
-    echo >&2 "WARNING: ${nvlink} is not a link (to nvversion) trying current.."
-    nvlink=/usr/share/nvidia/kernel/${kver}/current
-fi
+nvlink=/usr/share/nvidia/kernel/${kver}/current
 
 if [ ! -h ${nvlink} ] ; then
     echo >&2 "WARNING: ${nvlink} is not a link (to nvversion) .."
@@ -46,7 +50,7 @@ fi
 
 nvver=$(readlink ${nvlink})
 
-#echo "kver=${kver} leglvl=${leglvl} nvver=${nvver}"
+#echo "kver=${kver} nvver=${nvver}"
 
 # lrwxrwxrwx 1 root system 27 Feb 11 15:39 /node/usr_share_mxgfx -> /usr/share/nvidia/260.19.21