GNOME Bugzilla – Bug 769119
Interlaced refresh rates are not labelled as such
Last modified: 2016-07-26 11:27:53 UTC
Interlaced refresh rates are displayed without any indication they are not progressive-scan.
This is already fixed in master and will be in 3.22 . And no, it won't be backported since it requires an API change in mutter and gnome-desktop. *** This bug has been marked as a duplicate of bug 763833 ***