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I am using Lubuntu (Ubuntu with LXDE DE) with virtualbox for a long time and it work great. My problems started after moving to a 4k monitor (3840x2160). LXDE 2x scaling is very poor and doesn't scale everything correctly. Also, I think 2x scale is too high. I was looking for a DE that would allow 150% scaling, like Windows 10. I have found KDE to allow that but the problem is that it works ridiculously slow in VB (even though the fast multicore processor and high memory provided). I was wondering either someone can advice me a working solution for a virtualbox linux DE that has proper scaling for HDPI.

  • You haven't said what release, and this makes a big difference as HiDpi support has increased with time, and later releases (libraries etc) contain far greater support. Your mention of the on-life-support LXDE implies you want an old release? (Lubuntu uses LXQt now, last three releases using LXQt) – guiverc Oct 26 at 22:26
  • I visited the lubuntu website and it says its using "LXDE/LXQt"- I am not sure what does that mean. When installing LXQt by hand it looks completelly different than lxde. – Bremen Oct 27 at 4:32
  • Also, could you tell how do you increase the scaling to 150% in lxqt and either it work correctly? – Bremen Oct 27 at 5:02
  • You still haven't said what release, and what 'lubuntu' site. The official one? or a 'fan' site (which can have unofficial and often dated information). How did you find it? by asking google (which seems to favor advertizing rich sites so unofficial) or ubuntu.com? (ie. ubuntu.com/download/flavours as it'll send you to the correct site). From your last comment I'm betting you didn't go to the lubuntu site, but one of the many fan sites unrelated to Ubuntu/Lubuntu. (there is almost no reference to LXDE on Lubuntu's site - lubuntu.me) – guiverc Oct 27 at 5:50
  • As you have not provided your release, I'll provide the Lubuntu manual (for the latest release; 19.10 but applies to two prior releases before that ~equally too) which has some info on scaling & hidpi - manual.lubuntu.me/stable/3/3.2/3.2.13/… though it sends you to upstream site as most Lubuntu people aren't using hidpi & we can't test/write about it – guiverc Oct 27 at 5:54

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