Hi,
I have created an electron app that can take a desktop screenshot. It was working fine. Now I am trying to make an ubuntu core 20 according to https://github.com/ogra1/electron-kiosk-uc20.
But the screenshot taken is all black.
This is the UC18 snap (working desktop capture)
sudo snap install pam-app --channel=latest/edge --devmode
$ sudo snap connections pam-app
Interface Plug Slot Notes
content[gnome-3-28-1804] pam-app:gnome-3-28-1804 gnome-3-28-1804:gnome-3-28-1804 -
content[gtk-3-themes] pam-app:gtk-3-themes gtk-common-themes:gtk-3-themes -
content[icon-themes] pam-app:icon-themes gtk-common-themes:icon-themes -
content[sound-themes] pam-app:sound-themes gtk-common-themes:sound-themes -
desktop pam-app:desktop - -
desktop-legacy pam-app:desktop-legacy - -
gsettings pam-app:gsettings - -
network pam-app:network :network -
network-bind pam-app:network-bind :network-bind -
opengl pam-app:opengl :opengl -
pulseaudio pam-app:pulseaudio - -
wayland pam-app:wayland ubuntu-frame:wayland -
x11 pam-app:x11 - -
The UC20 snap
~$ sudo snap connections pam-app
Interface Plug Slot Notes
audio-playback pam-app:audio-playback - -
browser-support pam-app:browser-support :browser-support -
content[gnome-3-38-2004] pam-app:gnome-3-38-2004 gnome-3-38-2004:gnome-3-38-2004 -
content[gtk-3-themes] pam-app:gtk-3-themes gtk-common-themes:gtk-3-themes -
content[icon-themes] pam-app:icon-themes gtk-common-themes:icon-themes -
content[sound-themes] pam-app:sound-themes gtk-common-themes:sound-themes -
desktop pam-app:desktop - -
desktop-legacy pam-app:desktop-legacy - -
gsettings pam-app:gsettings - -
hardware-observe pam-app:hardware-observe - -
network pam-app:network :network -
network-bind pam-app:network-bind :network-bind -
network-observe pam-app:network-observe - -
opengl pam-app:opengl :opengl -
process-control pam-app:process-control - -
wayland pam-app:wayland ubuntu-frame:wayland -
x11 pam-app:x11 - -
adding screencast-legacy
made no differece