diff --git a/Dockerfile b/Dockerfile
index 3765da1..0338020 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -184,10 +184,10 @@
 
 # novnc
 # download websockify as well
-RUN wget https://github.com/novnc/noVNC/archive/v1.1.0.zip && \
-  unzip -q v1.1.0.zip && \
-  rm -rf v1.1.0.zip && \
-  git clone https://github.com/novnc/websockify /noVNC-1.1.0/utils/websockify && \
+RUN wget https://github.com/novnc/noVNC/archive/v1.2.0.zip && \
+  unzip -q v1.2.0.zip && \
+  rm -rf v1.2.0.zip && \
+  git clone https://github.com/novnc/websockify /noVNC-1.2.0/utils/websockify && \
   sudo dpkg-reconfigure lightdm
 # Xorg segfault error
 # dbus-core: error connecting to system bus: org.freedesktop.DBus.Error.FileNotFound (Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory)
diff --git a/run.sh b/run.sh
index 8db54bf..d40b78f 100755
--- a/run.sh
+++ b/run.sh
@@ -3,7 +3,7 @@
 
 # 0. generate xorg.conf
 BUS_ID=$(nvidia-xconfig --query-gpu-info | grep 'PCI BusID' | sed -r 's/\s*PCI BusID : PCI:(.*)/\1/')
-nvidia-xconfig -a --virtual=$RESOLUTION --allow-empty-initial-configuration --enable-all-gpus --busid $BUS_ID --cool-bits=28 --use-display-device="DFP-0" --connected-monitor="DFP-0" 
+nvidia-xconfig -a --virtual=$RESOLUTION --allow-empty-initial-configuration --enable-all-gpus --busid $BUS_ID --use-display-device="DFP-0" --connected-monitor="DFP-0" 
 
 # 1. launch X server
 Xorg :0 &
@@ -20,7 +20,7 @@
 # sleep 2
 
 # 3. start noVNC
-/noVNC-1.1.0/utils/launch.sh --vnc localhost:5900 --listen 8081 &
+/noVNC-1.2.0/utils/launch.sh --vnc localhost:5900 --listen 8081 &
 sleep 2
 
 echo 'running noVNC at http://docker_ip:6080/vnc_lite.html'
diff --git a/server.sh b/server.sh
index 484a3ef..1c301be 100755
--- a/server.sh
+++ b/server.sh
@@ -15,8 +15,7 @@
   -e NVIDIA_VISIBLE_DEVICES=all \
   -e NVIDIA_DRIVER_CAPABILITIES=all \
   -e QT_X11_NO_MITSHM=1 \
-  -e SDL_VIDEODRIVER=offscreen \
-  -e DISPLAY=172.17.0.2:0.0 \
+  -e SDL_VIDEODRIVER=x11 \
   -e VNCPASS=pass \
   -e RESOLUTION=1920x1080 \
   --shm-size=1gb \