I have an I2C display from hantec, and have sussed out that I can use this with U8GLIB SSD1306 declaration:
I have two displays of slightly different sizes that work in the same way, however the larger ones have a strange line down the side.
I'm 99% sure this is software-related because depending on where I write text to the screen it changes a bit, and sometimes when I change the code it almost completely goes away.
I tested resetting a number of times and the strange right hand graphic only ever changes when I change the code...
I don't mean "software fault", more "maybe I got the wrong settings".
Here's what I am seeing: