Comment # 8 on bug 1218732 from Matthew Mah

> And is the displayed size really 1920x1080, too?  That is, the actually displayed isn't 1920x1080?

I don't understand the question. 

I found an LG 27UK650 with 3840x2160 resolution that seems to display fine with
either 3840x2160 or 1920x1080 resolution. 

I know I had a Lenovo laptop running Tumbleweed running able to drive this
Samsung SyncMaster P2770HD monitor at native resolution at some point
previously. I am not sure whether it was the same laptop hardware.