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The State Of Wayland Support For KDE Plasma 5.14

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  • The State Of Wayland Support For KDE Plasma 5.14

    Phoronix: The State Of Wayland Support For KDE Plasma 5.14

    KDE developer Roman Gilg has shared the current state of Wayland support for the upcoming KDE Plasma 5.14 release as well as an outlook to improvements on the horizon...

    http://www.phoronix.com/scan.php?pag...-Wayland-State

  • #2
    KDE's Wayland support has noticeably improved after every other update. At this point I find it to be very stable and most features that seemed broken about it have now been resolved. As of this week, I only have 3 problems left:
    1. Chromium is very choppy, but, I think that's more Chromium's fault than KDE's or Wayland's because it isn't a Wayland-native app and running it with "--disable-gpu-driver-bug-workarounds" seems to "fix" the problem. Other Xwayland programs don't have this problem.
    2. The application thumbnail preview in the task list doesn't work.
    3. Sometimes when watching a fullscreen video, my main panel shows up on top of the video.

    Otherwise, everything else [I do] seems to work very smoothly and as-expected.
    Last edited by schmidtbag; 25 September 2018, 10:48 AM.

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    • #3
      Originally posted by schmidtbag View Post
      KDE's Wayland support has noticeably improved after every other update. At this point I find it to be very stable and most features that seemed broken about it have now been resolved. As of this week, I only have 3 problems left:
      1. Chromium is very choppy, but, I think that's more Chromium's fault than KDE's or Wayland's because it isn't a Wayland-native app and running it with "--disable-gpu-driver-bug-workarounds" seems to "fix" the problem. Other Xwayland programs don't have this problem.
      2. The application thumbnail preview in the task list doesn't work.
      3. Sometimes when watching a fullscreen video, my main panel shows up on top of the video.

      Otherwise, everything else [I do] seems to work very smoothly and as-expected.
      I am looking forward to 5.14, hoping that the issues I have had gaming will be fixed (also, the wayland session quitting on me, but I think that is amd bug in older mesa)

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      • #4
        KDE Plasma 5.14 provides great improvements for Wayland, very happy about this upcoming release :-) I use Plasma Wayland every day on my Intel and AMD GPU systems. Especially for gaming 5.14 is an important update to fix input issues on XWayland. Drag and drop support between X11 and Wayland is another great improvement! The remote desktop support in Plasma 5.15 is a nice to have for me, but good to see that it is almost done! Besides some smaller annoyances I don't see major gaps anymore compared to X11 (which may not show the same issues, but plenty of other ones).

        Personally the following "open" bugs are affecting my daily work flow on Plasma Wayland (including bugs of other projects):
        1.) Some content is not update in some applications without changing the window size or there is a flickering e.g. in systemsettings or Kmail => https://bugs.kde.org/show_bug.cgi?id=385921
        2.) Submenu's are placed incorrectly => Qt bug https://bugreports.qt.io/browse/QTBUG-51640
        3.) Fullscreen Vulkan apps on XWayland show no output until changing to window mode => https://bugs.freedesktop.org/show_bug.cgi?id=106713
        3.) There is some tearing and flickering in XWayland games & videos => XWayland bug, limited refresh rate? https://bugs.archlinux.org/task/5865...erver-xwayland
        4.) Mouse stuttering in some 4k XWayland applications => not sure how to reproduce yet, so no bug report, but an issue on X11 as well
        5.) Firefox Wayland build => https://bugzilla.mozilla.org/show_bug.cgi?id=635134

        I made now several times a negative experience when addressing bugs related to Wayland in some third party apps, so instead of discussing the topic you end up with "X11 was so much better" comments. In some cases I've either removed this application from my systems or found a replacement.
        Last edited by R41N3R; 25 September 2018, 02:04 PM.

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        • #5
          As someone who doesn't use KDE, but thinking of giving it a go - did they solve mixed DPI yet? One of the most important fixes wayland will bring imo is the ability to run differently scaled monitors and have things work properly when for example dragging / dropping windows between displays. Is this currently supported?

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          • #6
            Originally posted by stingray454 View Post
            As someone who doesn't use KDE, but thinking of giving it a go - did they solve mixed DPI yet? One of the most important fixes wayland will bring imo is the ability to run differently scaled monitors and have things work properly when for example dragging / dropping windows between displays. Is this currently supported?
            Not so well: https://www.youtube.com/watch?v=McsBzvgxNN8
            ## VGA ##
            AMD: X1950XTX, HD3870, HD5870
            Intel: GMA45, HD3000 (Core i5 2500K)

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            • #7
              Wrt this issue:

              >1.) Some content is not update in some applications without changing the window size or there is a flickering e.g. in systemsettings or Kmail => https://bugs.kde.org/show_bug.cgi?id=385921

              I experience this under X occasionally too (Firefox especially) so I guess it is time to try Wayland when 5.14 is out...

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              • #8
                Originally posted by jospoortvliet View Post
                Wrt this issue:

                >1.) Some content is not update in some applications without changing the window size or there is a flickering e.g. in systemsettings or Kmail => https://bugs.kde.org/show_bug.cgi?id=385921

                I experience this under X occasionally too (Firefox especially) so I guess it is time to try Wayland when 5.14 is out...
                This bug is still open, so far on Plasma 5.14 beta I don't see any difference.

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                • #9
                  Any word on whether nVidia will ever be supported?

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                  • #10
                    Hope they fixed the bug when closing a window crashes kwin. Any news on that? (Intel by the way)

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