I installed Ubuntu 18.04 to dual boot with Windows10 on Asus A555L laptop day before yesterday and it worked fine for 2 days.
However now when I boot my laptop, it directly goes to Ubuntu without showing the GRUB screen.
Also the screen keeps flickering.
On running boot-repair it generated this link(if this might help you solve the query):
http://paste.ubuntu.com/p/yJWq6yRGzH
Could you please suggest some measures. Thank you.
I might have switched off my laptop directly from the power button the last time I was working with Windows. Did this create the problem? Is the screen flickering and absence of grub screen related in any way (because both of these problems made an appearance at the same time)?