gEDA-user: Xvfb allows 'printing' with gschem with a headless server (was: Breadboard drawings with pcb?)

[Miles Gazic <miles.gazic@xxxxxxxxx>]

http://en.wikipedia.org/wiki/Xvfb

In one terminal:
Xvfb :3

In another terminal:
DISPLAY=:3
gschem -p -o myschematic-page1.ps -s print.scm myschematic-page1.sch

Xvfb doesn't need any particular hardware resources (screen, video
card, keyboard, mouse), and it allowed the above actions to complete
without the dreaded "Gtk-WARNING **: cannot open display".  In my case
I am trying to do the above on a machine I don't have root access on,
where there's already a display server running on :0, so I just picked
a random other display to run Xvfb on.

- Miles

On Tue, May 26, 2009 at 2:12 PM, Miles Gazic <miles.gazic@xxxxxxxxx> wrote:
> I have this same problem, because I automate my build with makefiles,
> and I'd like to have a build machine (that doesn't run X) be able to
> build everything (mostly software, but also PNGs and PDFs of my
> schematics, along with running DRC, making a netlist, etc.)
>
> I did a search for an alternate way around the problem, and found this:
> http://stackoverflow.com/questions/834723/a-dev-null-equivilent-for-display-when-the-display-is-just-noise
>
> I haven't tried it yet, but plan to soon.
>
> - Miles
>
> On Tue, May 26, 2009 at 9:35 AM, John Doty <jpd@xxxxxxxxx> wrote:
>>
>> On May 26, 2009, at 5:34 AM, Ineiev wrote:
>>
>>> On 5/26/09, Josef Wolf <jw@xxxxxxxxxxxxx> wrote:
>>>> But scriptability is a concern, though: is it possible to create the
>>>> ps/eps from a script/Makefile without GUI intervention?
>>>
>>> (Do you mean you do it _with_ GUI?)
>>>
>>> pcb -x ps --psfile board.ps board.pcb
>>>
>>> PCB even does not requires X for this task. BTW I couldn't achieve
>>> this with gschem --- it doesn't work from text terminal for me.
>>
>> You can print using the print.scm from a text terminal or script as
>> long as there's an X server for gschem to flash the page on. A minor
>> annoyance, I think.
>>
>>>
>>> Regards,
>>>   Ineiev
>>>
>>>


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