Electron kiosk app without devmode

snapcraft
21

electron-kiosk-wayland worked.

But I get this error when I run desktop capture.

[206304:1021/114811.410337:ERROR:shared_x_display.cc(38)] Unable to open display

22

you could try the screencast-legacy plug … but the function name above sounds like it might require Xorg …

23

No luck.

I added these plugs. Same error [325874:1021/131756.492177:ERROR:shared_x_display.cc(38)] Unable to open display

      - desktop
      - screencast-legacy
      - x11
      - system-observe
      - mir
      - unity7
24

yeah, there is no Xorg to be seen anywhere in the wayland kiosk implementation … (i assume you made sure the screencast-legacy plug is actually connected ? it does not auto-connect)

25

Hi,

How do I connect the screencast-legacy plug?

~$ snap connections electron-kiosk-uc20
Interface                 Plug                                   Slot                             Notes
audio-playback            electron-kiosk-uc20:audio-playback     -                                -
browser-support           electron-kiosk-uc20:browser-support    :browser-support                 -
content[gnome-3-38-2004]  electron-kiosk-uc20:gnome-3-38-2004    gnome-3-38-2004:gnome-3-38-2004  -
content[gtk-3-themes]     electron-kiosk-uc20:gtk-3-themes       gtk-common-themes:gtk-3-themes   -
content[icon-themes]      electron-kiosk-uc20:icon-themes        gtk-common-themes:icon-themes    -
content[sound-themes]     electron-kiosk-uc20:sound-themes       gtk-common-themes:sound-themes   -
desktop                   electron-kiosk-uc20:desktop            -                                -
desktop-legacy            electron-kiosk-uc20:desktop-legacy     -                                -
gsettings                 electron-kiosk-uc20:gsettings          -                                -
hardware-observe          electron-kiosk-uc20:hardware-observe   -                                -
network                   electron-kiosk-uc20:network            :network                         -
network-bind              electron-kiosk-uc20:network-bind       :network-bind                    -
network-observe           electron-kiosk-uc20:network-observe    -                                -
opengl                    electron-kiosk-uc20:opengl             :opengl                          -
process-control           electron-kiosk-uc20:process-control    -                                -
screencast-legacy         electron-kiosk-uc20:screencast-legacy  -                                -
wayland                   electron-kiosk-uc20:wayland            ubuntu-frame:wayland             -
x11                       electron-kiosk-uc20:x11                -                                -
~$ sudo snap connect electron-kiosk-uc20:screencast-legacy :screencast-legacy
error: snap "snapd" has no slot named "screencast-legacy"

I get a different error now

: /proc/self/exe: /snap/electron-kiosk-uc20/x4/gnome-platform/usr/lib/x86_64-linux-gnu/libffi.so.7: no version information available (required by /snap/electron-kiosk-uc20/x4/usr/lib/x86_64-linux-gnu/libwayland-server.so.0)
: /proc/self/exe: /snap/electron-kiosk-uc20/x4/gnome-platform/usr/lib/x86_64-linux-gnu/libffi.so.7: no version information available (required by /snap/electron-kiosk-uc20/x4/usr/lib/x86_64-linux-gnu/libwayland-client.so.0)
: /proc/self/exe: /snap/electron-kiosk-uc20/x4/gnome-platform/usr/lib/x86_64-linux-gnu/libffi.so.7: no version information available (required by /snap/electron-kiosk-uc20/x4/usr/lib/x86_64-linux-gnu/libwayland-server.so.0)

the desktop screenshot is black.

26

ls: cannot access '/snap/electron-kiosk-uc20/x6/gnome-platform/usr/lib/x86_64-linux-gnu/libffi.so.7': No such file or directory

Wrong path?

I did a search for libffi. It does not exist. How do I install it?