About the Pinebook - What to expect

[MarkHaysHarris777]

The 14"  does not appear to have this problem at all;  ubuntu image is clear, distinct, and bright;  no flashing issues and no artifacts on the screen.

The issue is screen tearing. Try dragging a window around the screen, and look for the tears on the left and right sides of the window. Other than that, which has to simply be a configuration issue (maybe a missed setting for fbturbo or something), the LCD image is perfect.

The 14" display does NOT have the artifacts on the screen; nor does the display flash (unlike lukasz' 11" display);  however,  I can confirm that whay lenny and pfeerick are calling "tearing" does appear on the 14" display ( the one I have ).  If, for instance, I open the calculator app and then drag the window around the screen (as Pete suggests) the left and right edges of the calculator app appear to break apart randomly at the edges until the motion subsides.