I agree this is annoying. We would all like to see nice consistent window decorations. So before reading on, remember we're on the same side :)
Firstly you should know that choosing Wayland instead of X11 is an Ubuntu feature and not a bug. We patch that in on Ubuntu in order to provide hardware-accelerated playback: https://launchpad.net/ubuntu/+source/mpv/0.26.0-3ubuntu1 But that change is not upstream for reasons such as the missing window decorations: https://github.com/mpv-player/mpv/pull/4556 Choosing Wayland and not X11 is necessary because libva (VA-API) only supports DRI2 and Xwayland only supports DRI3. They are not compatible with each other so --opengl-backend=x11* will never get acceleration in a Wayland session. Hardware-accelerated video playback was a major feature in Ubuntu 17.10. The problem is we have to choose between having window decorations or having hardware acceleration. And Ubuntu has chosen hardware acceleration. In fact, the missing window decorations are not an mpv bug, but a general problem with all native wayland apps right now. The app/toolkit has to provide its own window decorations with Wayland. GTK does that so you won't notice a problem with GTK apps. Unfortunately using --opengl-backend=x11egl undoes this change, turning off hardware acceleration. And that's a very big deal because modern 4K and HEVC videos simply can't be played without hardware acceleration even on high-end CPUs. So we'll stick with the Ubuntu default of --opengl-backend=wayland. We need acceleration working. If mpv 0.28 somehow fixes this then great. But I suspect actually that PPA only works because it omits the Ubuntu patches which we would like to keep. I suggest a better solution you would be happy with is to install gnome- mpv instead. That will give you window decorations. But that does mean inefficient playback (see https://community.ubuntu.com/t/hardware- accelerated-video-playback/304/4). ** Changed in: mpv (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739880 Title: on wayland, mpv opens without window elements, OSD missing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mpv/+bug/1739880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs