I am also affected by this 'feature'. I have 3 1920x1200 displays and primarily use my i7-6700hq's integrated graphics. I also have a discrete 960m; however, I don't believe it's in use. I am running Fedora 27 with Gnome 3.26.2.
The issue only occurs with my leftmost monitor when it's set to portrait mode. Feel free to contact me if I can help troubleshoot this.
I am also affected by this 'feature'. I have 3 1920x1200 displays and primarily use my i7-6700hq's integrated graphics. I also have a discrete 960m; however, I don't believe it's in use. I am running Fedora 27 with Gnome 3.26.2.
The issue only occurs with my leftmost monitor when it's set to portrait mode. Feel free to contact me if I can help troubleshoot this.