Re: Persuading ssh -X to work from a RasPiOS system

> On 22 Mar 2023, at 11:29, bob prohaska <[email protected]> wrote:
> On Wed, Mar 22, 2023 at 10:11:08AM +1030, Daniel O'Connor wrote:
>> 
>>> On 22 Mar 2023, at 09:59, bob prohaska <[email protected]> wrote:
>>> After a recent round of upgrades to both FreeBSD-current and RasPiOS64
>>> it developed that running 
>>> ssh -X  [freebsd hostname] 
>>> gets me logged in, but issuing
>>> xterm -sb
>>> reports
>>> xterm: Xt error: Can't open display: 
>>> xterm: DISPLAY is not set
>> 
>> 'DISPLAY is not set' is saying that ssh hasn't done the forwarding.
>> 
>> If you run 'xterm' before you login to FreeBSD, does it work?
>> 
> Somewhat to my surprise, xterm isn't recognized as a command
> on the RasPiOS end. The default terminal emulator is lxterminal,
> but I thought xterm would still be recognized. Evidently not. 
> 
>> Perhaps you don't have an X server (eg you could be using Wayland I guess)
>> 
> 
> The RasPiOS system boots to the command line and the windowing
> system is started up using startx. The man page for startx seems
> to imply that the Pi is using some flavor of X, but I'm not sure
> which one. Xwayland is available, but not installed. 

OK, seems strange it wouldn't work then.

You could try "ssh -vvvvvX user@freebsdhost" and see if there are messages about X11 forwarding.
 

--
Daniel O'Connor
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum