I'm a very novice user of ubuntu, tried installing ubuntu on my dell 7559 15" laptop. Installed it successfully after some search, I had to press e and add the following line to grub bootloader nomodeset added that... installed it successfully after when I went to start the ubuntu
I repeated the added nomodest in bootloader again to run ubuntu 16.04 ran it to login screen image below.
once I logged in no desktop loaded, the following image
Any Idea?
Kindly help me, what should I do to get it working...

