I have recently upgraded to Ubuntu 18.04, and I am experiencing subtle (but constant and rather annoying) screen flicker. My computer is an HP Envy x360 Convertible 15-bp1xx; using Intel graphics driver. The flickering is not specific to any application, but it is more visible in large medium-gray areas (e.g. applications with dark themes, desktop backgrounds, etc.)
Ubuntu – Ubuntu 18.04 screen strobing
18.04flickerintel graphics
Best Answer
I just ran into the same issue. Was fixed by changing the refresh rate to 59.96 or 59.93 (it was on 60.01) - no clue why. Just opened display settings and fiddled around after reading much older posts on similar issues.
Hope this sorts it out for you!