Hi Jacob,
I've build a fresh Ubuntu 18.04 Desktop environment in hopes of recreating
your issue. After installing and updating the OS, I installed the Gempak
7.5.1 .deb file from Unidata, and tried to run gpfront using the same
script you provided in your first email. I too am getting the NODEVC
error. So it's not just you, something is going wrong here for me as
well. I haven't gotten much further than this yet, but I wanted to provide
you, and the Gembud list, with an update. Now that I can recreate this
issue I'm going to try a bit more tinkering, and will reply back if/when I
know more.
-Mike
======================
Mike Zuranski
Meteorology Support Analyst
College of DuPage - Nexlab
Weather.cod.edu <http://weather.cod.edu/>
======================
On Thu, Jul 18, 2019 at 3:20 PM JACOB WIESE <jake9wi@xxxxxxxxxxx> wrote:
> Hi Mike, I'm running a desktop with Ubuntu 18.04. I installed with the
> deb file from the Unidata web site.
>
> Also I am running the gemenviron.profile script on the cmd line with the
> dot operator before running my script.
> =-=-=-=
> 73s
> Signed/KD9LWR/Jacob-E-Wiese/Cell-219-221-0486//
> PGP-KEY-ID/0x5DC8AC4F5C0330B1//
> NNNN
>
>
> ________________________________________
> From: Mike Zuranski <zuranski.wx@xxxxxxxxx>
> Sent: Thursday, July 18, 2019 12:13
> To: JACOB WIESE
> Cc: gembud
> Subject: Re: [gembud] Invalid device selected
>
> Hi Jacob,
>
> So the thing about x-windows and the DISPLAY environmental variable is
> this: When Gempak tries to make an image, it needs a place to open up and
> present that image before saving it. Say you open an image file on your
> PC, that image opens up in a window right? That's basically what Gempak is
> trying to do. But I think most of us are running Gempak in a server
> environment, where there is no desktop and therefore no direct way to just
> open a window. That's what x-windows does for us, it gives software like
> Gempak a place to virtually open a window so that image can be created, and
> then ultimately saved as an image file. Xvfb is a piece of Linux software
> that can host these "virtual desktops" and the DISPLAY environmental
> variable is how we can tell our Gempak scripts which one to use. I think
> there are other ways of doing this without the use of Xvfb, it's just what
> I'm used to.
>
> All that being said, I've been doing a little checking this morning trying
> to recreate your issue. If I try to set DISPLAY to something I know won't
> work, I get the following error: "[GEMPLT -83] NDISP - DISPLAY not set or
> invalid"
>
> But that's not your error. Yours is: "[GEMPLT -21] NODEVC - Invalid
> device selected"
>
> If I change my device line to something I know won't work (DEVICE =
> asdf|test.gif|1000;1000), then I'll get your "[GEMPLT -21]" error.
>
> What this is telling me is devices that should be working for you aren't.
> It's not that Gempak can't find an x-window like I first suspected, it's
> more like Gempak can't find the right device drivers. I'm beginning to
> wonder if something's wrong with your Gempak installation. You said before
> you haven't tried any other Gempak programs, has anything Gempak worked for
> you on this installation? Is the Gemenviron or Gemenviron.profile file
> getting sourced? And what OS is all this taking place on, and is it a
> server or desktop environment?
>
> -Mike
>
> ======================
> Mike Zuranski
> Meteorology Support Analyst
> College of DuPage - Nexlab
> Weather.cod.edu<http://weather.cod.edu/>
> ======================
>
>
> On Wed, Jul 17, 2019 at 6:19 PM JACOB WIESE <jake9wi@xxxxxxxxxxx<mailto:
> jake9wi@xxxxxxxxxxx>> wrote:
> OkyDok; I tried '/home/jacob/sfc.gif' same results.
>
> Here is my latest script revision.
>
> #!/bin/bash
>
> cd /home/jacob/
>
> export DISPLAY=":0.0"
>
> gpfront <<EOF
> MAP = 0
> GAREA = us
> PROJ = CED
> SATFIL =
> RADFIL =
> LATLON = 2/1/1
> PANEL = 0
> TITLE =
> TEXT =
> CLEAR = N
> DEVICE = gif | /home/jacob/sfc.gif | 1000;1000
> ASFIL = asus1.txt
> ASHR = 0
> ASATT =
> LUTFIL =
> IMCBAR =
>
> r
>
> e
>
> EOF
>
> gpend
>
> ###
>
> =-=-=-=
> 73s
> Signed/KD9LWR/Jacob-E-Wiese/Cell-219-221-0486//
> PGP-KEY-ID/0x5DC8AC4F5C0330B1//
> NNNN
>
>
> ________________________________________
> From: Mike Zuranski <zuranski.wx@xxxxxxxxx<mailto:zuranski.wx@xxxxxxxxx>>
> Sent: Wednesday, July 17, 2019 18:03
> To: JACOB WIESE
> Cc: gembud@xxxxxxxxxxxxxxxx<mailto:gembud@xxxxxxxxxxxxxxxx>
> Subject: Re: [gembud] Invalid device selected
>
> Okay, thanks for trying that. I just noticed your output file name
> "~/sfc.tiff" is a relative path. Try an absolute path and see if that
> works. If not, I can try to give you more advice about x-windows later
> (have to run out the door for now). But this would be an easy thing to
> test first.
>
> Sorry you're running into issues, hopefully we can get things working for
> you.
>
> -Mike
>
> ======================
> Mike Zuranski
> Meteorology Support Analyst
> College of DuPage - Nexlab
> Weather.cod.edu<http://Weather.cod.edu><http://weather.cod.edu/>
> ======================
>
