Modify the screen resolution of Ubuntu

 
Recently re-installed my environment, vnc connection with the server, find that the resolution is too low, then checked how to modify the resolution, to turn it up.

 

1. Edit / etc / default / grub
2. Search "# GRUB_GFXMODE = 640x480", uncommented, change it to "GRUB_GFX = 1920 * 1080"
3. Restart the service, sudo update-grub.
4. Restart the host, complete.