Change headless screen resolution for VNC
sudo raspi-config
To change the vide from tiny to hdmi -
10/10/16 - FOR LARGER HEADLESS SCREEN
sudo nano /boot/config.txt
# uncomment to force a console size. By default it will be display's size minus overscan.
framebuffer_width=1280
framebuffer_height=720
Un-Comment #hdmi_force_hotplug=1
hdmi_force_hotplug=1
DOWN LEVEL!!
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
Using the following commad
sudo nano /boot/config.txt
Un-Comment #hdmi_force_hotplug=1
hdmi_force_hotplug=1
Add these two lines:
hdmi_group=2
hdmi_mode=16 (1024x768@60Hz)
Save and exit nano
Then I ran x11vnc with -configure 1024x600, which is the resolution of my netbook screen