[BobF]

Originally Posted by jrengmusic

What REAPER version are you using? Have you enable the HIDPI mode?
Look at this thread
Default_5.0_@2x Reaper Theme for HiDPI screens.
It is the Default_5.0 theme @2x. Which use the same experimental method as METRIC.

I have a Window machine with 1980x1200 screen at Stu. I have not tested yet.

I could only tried on WineBottler which apparently not supporting HIDPI mode. But even in a humongous scaling i could tell without choosing the HIDPI mode on REAPER the scaling is way off but similar to your screenshot.

After looking thru that thread I don't know any more about 2X or HiDPI than I did before.