What is the minimum package list for Wayland

[pfitzgerald]

Greetings,

I've playing around with Cage, which is a kiosk that runs a single application on top of Wayland. Gnome and KDE not required -apparently. (details here: https://www.hjdskes.nl/projects/cage/).

Luckily its been built at home:jubalh for Tumbleweed.

Under a standard Tumbleweed KDE install, it works as advertised - I can specify the command "cage /usr/bin/epiphany" from the CLI and it launches a plain screen with the web browser, and when I close the browser the session returns to the CLI.

However, when I try to install this on a minimal JeOS build, it throws me out with the message "[cage.c :182] Unable to create the wlroots backendeviceerer"

As C has never been my strong point I was wondering if anyone out there has any clues what packages need to be installed to make this work, OR, if there is a "correct" way to troubleshoot what packages are missing?

I've tried installing a bunch of wayland/weston related packages but nothing has worked so far...

Thanks in advance - Patrick

[malcolmlewis]

Greetings,

I've playing around with Cage, which is a kiosk that runs a single application on top of Wayland. Gnome and KDE not required -apparently. (details here: https://www.hjdskes.nl/projects/cage/).

Luckily its been built at home:jubalh for Tumbleweed.

Under a standard Tumbleweed KDE install, it works as advertised - I can specify the command "cage /usr/bin/epiphany" from the CLI and it launches a plain screen with the web browser, and when I close the browser the session returns to the CLI.

However, when I try to install this on a minimal JeOS build, it throws me out with the message "[cage.c :182] Unable to create the wlroots backendeviceerer"

As C has never been my strong point I was wondering if anyone out there has any clues what packages need to be installed to make this work, OR, if there is a "correct" way to troubleshoot what packages are missing?

I've tried installing a bunch of wayland/weston related packages but nothing has worked so far...

Thanks in advance - Patrick

Hi
In theory, cage should only require the libraries indicated here: https://build.opensuse.org/package/b...1.1.x86_64.rpm

Those libraries in turn should pull in their dependencies.

What JeOS image are you using?

[malcolmlewis]

Hi
Looking at the build info, cage isn't built with wayland support....

Cage comes with compile-time support for XWayland. To enable this, first make sure that your version of wlroots is compiled with this option.
Then, add -Dxwayland=true to the meson command above. Note that you’ll need to have the XWayland binary installed on your system for this to work.

[pfitzgerald]

Hi
In theory, cage should only require the libraries indicated here: https://build.opensuse.org/package/b...1.1.x86_64.rpm

Those libraries in turn should pull in their dependencies.

What JeOS image are you using?

The kiwi build from the SUSE repo over at Github...

Works well, thought I'd give it a simple graphical interface...

[malcolmlewis]

Hi
Looking at the build info, cage isn't built with wayland support....

Hi
Here you go, a version with Xwayland support;
https://build.opensuse.org/package/s...s:TESTING/cage

[pfitzgerald]

Hi
Looking at the build info, cage isn't built with wayland support....

That refers to Xwayland, which is optional, and should not be be required?

Cage is definitely built for wayland, according to the author.

(I thought that the whole idea of wayland was to get rid of X?)

[malcolmlewis]

The kiwi build from the SUSE repo over at Github...

Works well, thought I'd give it a simple graphical interface...

Hi
Any missing libs from the output of;

ldd /usr/bin/cage

[pfitzgerald]

Hi
Any missing libs from the output of;

ldd /usr/bin/cage

No - nothing marked missing. All the libs listed in the RPM are present too...

Let me try a cleaner version of the kiwi config....

[pfitzgerald]

No - nothing marked missing. All the libs listed in the RPM are present too...

Let me try a cleaner version of the kiwi config....

Clean version (ie none of our packages added) yields the same result.

Will try with your package shortly, however I'm trying to not pull in X...

[deano_ferrari]

That refers to Xwayland, which is optional, and should not be be required?

Cage is definitely built for wayland, according to the author.

(I thought that the whole idea of wayland was to get rid of X?)

You may not need it (for your kiosk environment context), however XWayland is provided as a minimal X-server for those applications that are not Wayland aware. X11-based apps will expect such a server to be available. This might help clarify further...
https://wayland.freedesktop.org/docs/html/ch05.html