diff --git a/core_functions.sh b/core_functions.sh
index ba62b58..ef2563f 100644
--- a/core_functions.sh
+++ b/core_functions.sh
@@ -576,6 +576,7 @@ function usage () {
   printf " "$BOLDVERT"-s"$NORMAL" : install Solaar for Logitech Unifying devices\n"
   printf " "$BOLDVERT"-t"$NORMAL" : install TLP for Laptops and low energy usage\n"
   printf " "$BOLDVERT"-n"$NORMAL" : install lastest Nvidia graphic drivers\n"
+  printf " "$BOLDVERT"-g"$NORMAL" : install lastest free graphic drivers, mesa, ...\n"
   printf " "$BOLDVERT"-k"$NORMAL" : update system to the latest kernel\n"
   printf " "$BOLDVERT"-u"$NORMAL" : update system (apt,snap,...)\n"
   printf " "$BOLDVERT"-p"$NORMAL" : clean useless packages\n"
diff --git a/install_functions.sh b/install_functions.sh
index d2cfb3c..652588d 100644
--- a/install_functions.sh
+++ b/install_functions.sh
@@ -431,6 +431,20 @@ function installWebcamMenu () {
   installAppsFromListMenu webcam
 }
 
+#
+# install latest versions of graphic drivers, mesa, .... (headless)
+#
+function installOibaf () {
+  addRepo_Oibaf
+}
+
+#
+# install latest versions of graphic drivers, mesa, .... (Menu)
+#
+function installOibafMenu () {
+  addRepo_Oibaf
+}
+
 #
 # install Nvidia Drivers (headless)
 #
diff --git a/menus_functions.sh b/menus_functions.sh
index 0528866..fa5967d 100644
--- a/menus_functions.sh
+++ b/menus_functions.sh
@@ -406,6 +406,7 @@ function showHardwareMenu () {
     "solaar" "Solaar for Logitech Unifying devices" \
     "webcam" "Install webcam neede apps" \
     "microcode" "Update Intel/AMD CPU microcode" \
+    "oibaf" "latest version of free graphic drivers, mesa, ..." \
     "nvidia370" "Install Nvidia 370 graphic drivers" \
     "nvidia375" "Install Nvidia 375 graphic drivers" \
     "nvidia378" "Install Nvidia 378 graphic drivers" \
@@ -432,6 +433,9 @@ function showHardwareMenu () {
       "microcode")
         updateMicrocode
         ;;
+      "oibaf")
+        installOibafMenu
+        ;;
       "nvidia370")
         installNvidia370Menu
         ;;
diff --git a/repo_functions.sh b/repo_functions.sh
index 5cd7fa3..ebf251f 100644
--- a/repo_functions.sh
+++ b/repo_functions.sh
@@ -646,6 +646,15 @@ function addRepo_DhorMyWay () {
   addPPA ppa:dhor/myway
 }
 
+#
+# Oibaf
+#   - newest versions of free/open GPU drivers
+#   - newest versions of Mesa, ....
+#
+function addRepo_Oibaf () {
+  addPPA ppa:oibaf/graphics-drivers
+}
+
 #
 # Nvidia drivers
 #
diff --git a/yggdrasil.sh b/yggdrasil.sh
index 9ae3ed5..91abf2e 100755
--- a/yggdrasil.sh
+++ b/yggdrasil.sh
@@ -50,7 +50,7 @@ echo "--[ Yggdrasil log ]--[ "$cDate" ]--[ "$cTime" ]-----------------------" >>
 #
 # arguments/options management with getopts
 
-while getopts ":h,v,f,c,u,a,d,q,s,t,n,w,p,k,T" option; do
+while getopts ":h,v,f,c,u,a,d,q,s,t,n,g,w,p,k,T" option; do
   case "$option" in
     a) # install all apps
        # except
@@ -195,6 +195,12 @@ while getopts ":h,v,f,c,u,a,d,q,s,t,n,w,p,k,T" option; do
       installNvidia396
       exit
       ;;
+    g) # latest feee graphic drivers, mesa, ...
+      yggInit
+      updateSystem
+      installOibaf
+      exit
+      ;;
     k)
       yggInit
       updateSystem