[Feature Request] GUI Scaling for Hi-DPI displays

[prg318]

Not sure if this is the best place to bring this up, but using some of the ports on 4k or hi-DPI displays can be very difficult (especially something like dexed). I don't see a way to scale the UI - not sure if this should be handled by juce or the ports themselves..

This would greatly increase usability for a lot of people

[falkTX]

hmm I believe they should already work for high-DPI screens. juce supposedly handles it, but not sure what is the current state on linux.

for vst plugins, the host needs to pass a special attribute reporting the scale. LV2 has no such concept yet. If hosts don't provide scaling information, I believe juce tries to get it from the system. some time ago it was only handled in ubuntu, using its gconf settings. not sure how it is now.

[prg318]

In my case with Dexed - I can resize the window, but any extra space is just black instead of the dexed GUI reszing. This also occurs with Obxd. I will continue to look into this

[falkTX]

plugin UIs are not meant to be resizable though, not by default. the scaling is something different, it makes the UI bigger but it's still non-resizable by the user.

[a13]

I have the same problem: dexed/obxd/nekobee controls look tiny on my 4k display

[falkTX]

A way to do scale is already present in the update-pugl branch, but there is no auto-detection for it yet. I know VST2 has a custom property for it, so we can test that (though then the host itself would have to support it too). For LV2 we will have to define a property ourselves, since one does not exist yet. DSSI has no way to provide this info in a sorta official way, and I guess we can ignore it.

Which hosts do you know that support scaling?

[prg318]

Not positive, but I was under the impression that Bitwig Studio was supposed to support plugin scaling

[wagenadl]

Has there been any progress on this issue? The projucer and GUIs that it generates still look tiny in Linux (Ubuntu 18.04) with hidpi screen.

[hfiguiere]

Concerning Dexed, I have built the VST from upstream (version 0.9.4hf1) and the resolution is OK. However the one in DISTRHO-Ports (2018-04-16) is not. Both hosted in Ardour 6-rc1 (happen in 5.12 as well).

Here is the DISTRHO-Ports version:

And the version from upstream:

Note: the LV2 has the same problem (except the window is properly sized), but I don't have anything to compare it with.

(this is on Fedora 32, and I built both Ardour and the plugins)

[hfiguiere]

tl;dr. for Dexed it might be solvable by upgrading to the current upstream code.