====== cb-display-tool ====== If you are using lubuntu, try the following commands #wget http://dl.cubieboard.org/software/tools/armhf/cb-display-tool #chmod 777 cb-display-tool #cb-display-tool -o 8 -m 11 #switch to VGA type #cb-display-tool -o 4 -m 4 #switch to HDMI type If you switch to other resolution, you need to restart your X after the modification