[Cialug] raspbery pi monitor

[Jeff Chapin]

You can also run: sudo strings -a /proc/*/environ | grep DISPLAY

This will check the env for all running processes, and find any that has
DISPLAY set -- presumably the login prompt will have that set, even if
nothing else does. This does *not* have to be run from a working X session.

Jeff

On Wed, Sep 7, 2016 at 11:21 AM, Jeffrey Ollie <jeff at ocjtech.us> wrote:

> The display number isn't always 0, try variations of:
>
> DISPLAY=:N xeyes
>
> where N >= 0.  0, 1 and 10 are possibilities. If that doesn't work, the
> next time you're in front of the display, open a command prompt and type
> "echo $DISPLAY" and use that value.
>
>
>
> On Wed, Sep 7, 2016 at 10:17 AM, Patrick Mcgillan <
> patrick.mcgillan at gmail.com> wrote:
>
> > I have a monitor screen plugged in to the hdmi port on my raspberry pi. I
> > would like to do a remote login and run a python program whose output is
> to
> > the hdmi port. I am sure it can be done, just haven't figured out the
> > syntax quite yet.
> >
> > Right now, the screen is sitting at login prompt. No keyboard/mouse
> > attached to the pi. Even trying to get xeyes to come up with xeyes
> -display
> > localhost:0.0 only gets me a Error: Can't open display: localhost:0.0
> >
> > Something simple I am sure, but its been a long time since playing with
> > remote xserver.
> >
> > Patrick
> > _______________________________________________
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> >
>
>
>
> --
> Jeff Ollie
> The majestik møøse is one of the mäni interesting furry animals in Sweden.
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>



-- 
Jeff Chapin
President, CedarLug, retired
President, UNIPC, "I'll get around to it"
President, UNI Scuba Club
Senator, NISG, retired