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I’ve been using Plasma for years, but after this release talking so much about the wayland improvements, the actual result is more than disappointing. First, t

I’ve been using Plasma for years, but after this release talking so much about the wayland improvements, the actual result is more than disappointing. First, to explain my setup: I've got a Dell UP2718Q in landscape, 3840x2160, 10-bit in DCI-P3 colorspace at 1.5x scale at 60Hz, side-by-side with a Fujitsu Siemens P17-2 in portrait, 1024x1280, 8-bit in sRGB colorspace at 1x scale at 75Hz 10-bit support isn’t there yet, color calibration support isn’t there yet either, but that’s something where I’ll just have to wait for the future. Discover currently fails to install due to mismatched dependencies, but this is also something the future will solve. So far: KScreen still refuses to save changed settings, so on every boot I have to manually set my Fujitsu Siemens P17-2 to Portrait at 75Hz again. The scaling somewhat works, but not properly, especially GTK applications are upscaled rather than downscaled. (See Firefox in the screenshot linked below) The plasma panels overlap about half a virtual pixel at 1x, or 1 pixel at 1.5x, so the panel on the right monitor opens the dashboard on the left one, and the panel on the left monitor sometimes doesn’t even open a panel at all. Screenshot: https://i.k8r.eu/sEDfiQ.png https://i.k8r.eu/sEDfiQ.png Overall it’s a good start, but still not quite there yet.

JW_00000 6y ago
Can I ask how you managed to set a different scale factor for each screen? In the system settings I can only find a global scale factor... Or is this only supported using Wayland?
- AnIdiotOnTheNet 6y ago
  Yes, it is only supported in Wayland because X is limited to one global scaling factor.
  - nitrogen 6y ago
    I don't think X is so limited. You can use the xrandr tool to set pretty much arbitrary positioning and scaling for each screen, at least with the proprietary NVidia drivers. But that is GPU scaling, not framework scaling.
- kuschku 6y ago
  KDE on wayland supports it natively, on X11 you could set the environment variable QT_SCREEN_SCALE_FACTORS, but this will only affect Qt/KDE applications, not Gtk/Gnome applications
diffeomorphism 6y ago
Maybe a stupid question, but why? If you care about high resolution and good colors why are you keeping the low res second monitor? If you don't care about hires, why not simply set the Dell one to a lower resolution and not worry about scaling at all?
- detaro 6y ago
  Because having extra screenspace to keep docs/chat/... on is nice and an old screen is good enough for that?
  - diffeomorphism 6y ago
    Is it? It apparently is not good enough for the main screen. The thing is that scaling works just fine if all your displays use the same one. Two 4k screens -> awesome. Two fhd screen -> works just fine. It is only the combination of one hires and one lowres screen that is problematic. So my maybe naive take away is that if you care that your main screen is 4k, then no your old screen is not good enough. And if you think it was good enough, then why did you feel the need to upgrade your main screen?
    - kuschku 6y ago
      As I answered earlier: Different screens can be used for different purposes, and different purposes may have different requirements :) Even if money was no issue and I could have two screens of the same quality, I’d still keep the old screen as a third screen. For most people, more screens = better, but for me there’s also the fact that to actually design content, you need to be able to verify what this content is going to look like on the devices the users are going to use.
    - detaro 6y ago
      Because I use the main screen for more than displaying docs and chat? And it's a problem to spend large-ish amounts of money just to workaround software problems?
- kuschku 6y ago
MegaDeKay 6y ago
> Overall it’s a good start, but still not quite there yet. If you mean Wayland, both the linked article and the video within the article acknowledge this, calling Wayland a work-in-progress. I too am looking forward to the day they get there.
- kuschku 6y ago
  Sadly neither X11 nor Wayland is working well yet, and that’s before talking about stuff like 10-bit, colorspace or HDR support. It’s getting better, but no linux distro is currently on a similar level as windows or mac in this regard

JW_00000 6y ago

Can I ask how you managed to set a different scale factor for each screen? In the system settings I can only find a global scale factor... Or is this only supported using Wayland?

AnIdiotOnTheNet 6y ago
Yes, it is only supported in Wayland because X is limited to one global scaling factor.
- nitrogen 6y ago
  I don't think X is so limited. You can use the xrandr tool to set pretty much arbitrary positioning and scaling for each screen, at least with the proprietary NVidia drivers. But that is GPU scaling, not framework scaling.
kuschku 6y ago
KDE on wayland supports it natively, on X11 you could set the environment variable QT_SCREEN_SCALE_FACTORS, but this will only affect Qt/KDE applications, not Gtk/Gnome applications

diffeomorphism 6y ago

Maybe a stupid question, but why? If you care about high resolution and good colors why are you keeping the low res second monitor? If you don't care about hires, why not simply set the Dell one to a lower resolution and not worry about scaling at all?

detaro 6y ago
Because having extra screenspace to keep docs/chat/... on is nice and an old screen is good enough for that?
- diffeomorphism 6y ago
  Is it? It apparently is not good enough for the main screen. The thing is that scaling works just fine if all your displays use the same one. Two 4k screens -> awesome. Two fhd screen -> works just fine. It is only the combination of one hires and one lowres screen that is problematic. So my maybe naive take away is that if you care that your main screen is 4k, then no your old screen is not good enough. And if you think it was good enough, then why did you feel the need to upgrade your main screen?
  - kuschku 6y ago
    As I answered earlier: Different screens can be used for different purposes, and different purposes may have different requirements :) Even if money was no issue and I could have two screens of the same quality, I’d still keep the old screen as a third screen. For most people, more screens = better, but for me there’s also the fact that to actually design content, you need to be able to verify what this content is going to look like on the devices the users are going to use.
  - detaro 6y ago
    Because I use the main screen for more than displaying docs and chat? And it's a problem to spend large-ish amounts of money just to workaround software problems?
kuschku 6y ago

MegaDeKay 6y ago

> Overall it’s a good start, but still not quite there yet. If you mean Wayland, both the linked article and the video within the article acknowledge this, calling Wayland a work-in-progress. I too am looking forward to the day they get there.

kuschku 6y ago
Sadly neither X11 nor Wayland is working well yet, and that’s before talking about stuff like 10-bit, colorspace or HDR support. It’s getting better, but no linux distro is currently on a similar level as windows or mac in this regard