nvidiactl: fallback to nouveau

nvidiactl/nvidiactl

@@ -5,6 +5,16 @@ set_generic_mxgfx_link () {
   ln -sf /usr/share/mxgfx-generic /node/usr_share_mxgfx
 }
 
+use_nouveau () {
+  set_generic_mxgfx_link
+  test -e /lib/modules/${kver}/kernel/drivers/gpu/drm/nouveau/nouveau.ko && \
+  echo >&2 "NOTE: using nouveau.." && \
+  modprobe nouveau && \
+  exit 0
+
+  echo >&2 "ERROR: nouveau module not available."
+  exit 1
+}
 
 if [ -d /sys/module/nouveau ] ; then
   echo >&2 "NOTE: nouveau driver loaded already, using 'mxgfx-generic'."
@@ -30,22 +40,16 @@ pciids="${PCIIDHINT_DIR}/${kver}-${nvver} ${PCIIDHINT_DIR}/${nvver}"
 
 for leglvlhint in ${pciids} ; do
   if [ -h "${leglvlhint}" ] ; then
-    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
+    echo >&2 "NOTE: legacy nvidia card found.."
+    use_nouveau
   fi
 done
 
 nvlink=/usr/share/nvidia/kernel/${kver}/current
 
 if [ ! -h ${nvlink} ] ; then
-  echo >&2 "WARNING: ${nvlink} is not a link (to nvversion) .."
-  exit 1
+  echo >&2 "WARNING: NVIDIA driver not installed for kernel version ${kver}.."
+  use_nouveau
 fi
 
 nvver=$(readlink ${nvlink})