I personally don’t use 4k monitors, however I have just tried running Slicer in a 4k monitor on ubuntu 18.04 with the scaling option (recently added in ubuntu, 200%).
This is the result:
it kind of works, but many icons are of different sizes and at the end it does not look too good. I was wandering if this is just an issue with ubuntu, how it does the scaling (it looks that it scales only the text and the relative GUI) or do you experience this also in windows? (on mac everything seems working on retina display with scaling).
yeah, most likely will take at least another distro release in time for having the scaling sorted out in linux (at least in ubuntu).
I tried to use Wayland in ubuntu 17.10. However it was very bugged, specifically there was almost no support in the nvidia driver for wayland. On fresh install of ubuntu 18.04, the default is back to Xorg and I can’t even go back to wayland (maybe it is a bug, there is no gear option at login screen). It seems, unfortunately, we will have to wait at least the next release to have decent wayland support.
I did some testing today using Slicer binaries 8.4.1, 4.10.0 and nightly build 4.11.0 2018-10-23. It seems 4.8.1 adapts better to different monitors. I think the problem is related to Slicer version as I am using the same hardware, system, and settings. Is it possible to have the same behavior in recent versions?
Slicer 4.8 used Qt 4.x and 4.10 uses Qt 5.x and there appears to be some debugging to do related to handling of various ‘retina’ and other multiresolution monitor support (the hardware and OS features are continuing to evolve, I’m sure). For example my recent mac build is completely screwed up with the latest Qt and macOS.
This will require some experimentation on the developer side, but also we’ll need a lot of people to test and provide feedback as we try different settings.