Comment 24 for bug 1838919

On 14/8/19 8:22 pm, Traumflug wrote:
> Installed packages don't matter if their content isn't in use. It does
> matter whether you run an X11 or a Wayland session.
>
> To switch between both, log out to get to the login screen. There is a
> gears icon right above the password entry field, click on it. This
> should open a menu allowing to choose between "Ubuntu on Xorg" and
> "Ubuntu on Wayland". Having this choice done, log in, you'll be in the
> selected type of session.

I had forgotten the gear wheel.. the last time I used it was when unity
came out as the new default and I preferred Gnome Classic. Thanks for
reminding me.

> Basically, all applications work in both session types, but there are a
> number of smaller visual distinctions. For example, Firefox draws its
> menu inside the window bar on Wayland, while it draws the menu under the
> window bar on X11. Also, on X11 there's a process "Xorg" running, while
> on Wayland there's a process "XWayland" (or similar).

The default on the desktop system was "ubuntu", so I changed to "Gnome
on Xorg". The presentation details are different (obviously) but don't
bother me. However, I get exactly the same errors logged and slow input
events:-

Aug 15 07:21:43 schizo gnome-control-c[8320]: GTK+ module
/usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libgail.so cannot be loaded.
                                               GTK+ 2.x symbols
detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Aug 15 07:21:43 schizo gnome-control-c[8320]: Not loading module
"atk-bridge": The functionality is provided by GTK natively. Please try
to not load it.
Aug 15 07:21:44 schizo gnome-control-c[8320]: GTK+ module
/usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libcanberra-gtk-module.so
cannot be loaded.
                                               GTK+ 2.x symbols
detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Aug 15 07:21:44 schizo gnome-control-c[8320]: Failed to load module
"canberra-gtk-module"
Aug 15 07:21:44 schizo gnome-control-c[8320]: GTK+ module
/usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libcanberra-gtk-module.so
cannot be loaded.
                                               GTK+ 2.x symbols
detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Aug 15 07:21:44 schizo gnome-control-c[8320]: Failed to load module
"canberra-gtk-module"

I will try again but this time only start a terminal session. I realise
there is a lot of processes running to support a single graphical user
session, but I'll keep Chrome and Thunderbird out of the variables.