GNOME Bugzilla – Bug 744925
Window decorations broken in HiDPI
Last modified: 2015-02-23 20:13:51 UTC
Because they are sized with logical pixels in mind, but mutter operates in terms of device pixels (the window scale is forced to 1). So mutter needs to apply to the scaling itself.
Thanks for taking the time to report this. This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find. *** This bug has been marked as a duplicate of bug 744354 ***