www/chromium runs but drop down menu vanishes on Pi4

[bob prohaska]

On Sun, May 02, 2021 at 04:10:44PM +0000, bugzilla-noreply at freebsd.org wrote:
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246982
> 
> --- Comment #25 from Mikael Urankar <mikael at FreeBSD.org> ---
> (In reply to Bob Prohaska from comment #24)
> just update your ports tree.
> 

The latest version of www/chromium compiled without a hitch on 
the Pi4, but drop-down controls menu (far right end of URL bar)
won't stay dropped down when the browser is running on the console.

If I ssh -X into the Pi4 and open chrome the drop-down seems to
work correctly. The X terminal is another Pi4 running RaspiOS. 

There are lots of warnings on the controlling terminal. The last
few from the X session are:

[1881:100622:0506/112524.929414:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
[1881:100622:0506/112524.929991:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
[1881:100622:0506/112524.930610:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
[1960:100509:0506/112632.126032:ERROR:viz_main_impl.cc(150)] Exiting GPU process due to errors during initialization
[1982:100388:0506/112641.680603:ERROR:gl_implementation.cc(285)] Failed to load /usr/local/share/chromium/swiftshader/libGLESv2.so: Cannot open "/usr/local/share/chromium/swiftshader/libGLESv2.so"
[1982:100388:0506/112641.686824:ERROR:viz_main_impl.cc(150)] Exiting GPU process due to errors during initialization
[1983:100532:0506/112642.770040:ERROR:gpu_init.cc(426)] Passthrough is not supported, GL is disabled
[1887:100608:0506/112836.827661:ERROR:child_thread_impl.cc(336)] Crashing because hung

Could this be a configuration error? Apart from the vanishing control dropdown
chrome seems to work reasonably well, despite the warnings.  

Thanks for reading,

bob prohaska