[ncl-talk] Error: Couldn't find per display information ?

[Mary Haley]

Hi all,

I actually ran into this problem once myself a few days ago. I think it was
because I had logged on to my system while under a particular wireless
network (that required a password), and then I closed my machine, went back
to my hotel room, where I was under a different wireless network.  I then
couldn't run idt until I had logged out and logged back in.

The problem was that my DISPLAY was being set based on being logged onto a
different network, and then it would no longer work once I got onto a
different network.  By loggjng out and logging back in, my DISPLAY would
automatically get reset and I could run idt again.

I don't know if this is the source of the problem, but it might help with
debugging it.

--Mary


On Fri, Aug 5, 2016 at 1:43 PM, Rick Brownrigg <brownrig at ucar.edu> wrote:

> Hi Angel,
>
> From what I understand, your user can run X11 clients on remote hosts, but
> can't run them locally?  That suggests a problem with the X11 server -- as
> you likely know, normally on a Mac, the servers starts automatically
> whenever a client is run.  Can the manually start the X11 server locally
> from a command-line by the command "Xquartz"?    The man-page on Xquartz
> indicates there are log file under ~/Library/Logs -- maybe there's a clue
> there.  Wish I could be of more help...
> Rick
>
>
> On Fri, Aug 5, 2016 at 12:08 PM, Suarez, Angel (GISS-611.0)[TRINNOVIM,
> LLC] <angel.suarez at nasa.gov> wrote:
>
>> Happy Friday Everyone,
>> Does anyone have any other suggestions?
>> Thank you,
>> Angel
>>
>>
>>
>> Mr. Angel Suarez
>> System Administrator
>> NASA Goddard Institue for Space Studies
>> 2880 Broadway
>> New York, N.Y. 10025
>> angel.suarez at nasa.gov
>>
>>
>>
>>
>> From: "Suarez, Angel (GISS-611.0)[TRINNOVIM, LLC]" <angel.suarez at nasa.gov
>> >
>> Date: Wednesday, August 3, 2016 at 12:32 PM
>> To: Rick Brownrigg <brownrig at ucar.edu>
>>
>> Cc: "ncl-talk at ucar.edu" <ncl-talk at ucar.edu>
>> Subject: Re: [ncl-talk] Error: Couldn't find per display information ?
>>
>> Hi Rick,
>> Thank you for your response.
>>
>> Yes, the user has X11 (2.7.9) running on his machine. What’s odd is that
>> he can run it on a remote machine and it works.
>> It seems that the problem is just on his local machine.
>>
>> Thanks,
>> Angel
>>
>>
>>
>>
>> Mr. Angel Suarez
>> System Administrator
>> NASA Goddard Institue for Space Studies
>> 2880 Broadway
>> New York, N.Y. 10025
>> angel.suarez at nasa.gov
>>
>>
>>
>>
>> From: Rick Brownrigg <brownrig at ucar.edu>
>> Date: Tuesday, August 2, 2016 at 11:53 PM
>> To: "Suarez, Angel (GISS-611.0)[TRINNOVIM, LLC]" <angel.suarez at nasa.gov>
>> Cc: "ncl-talk at ucar.edu" <ncl-talk at ucar.edu>
>> Subject: Re: [ncl-talk] Error: Couldn't find per display information ?
>>
>> Hi,
>>
>> You are able to run X11 clients from your user's host on *your* machine,
>> but does your user have XQuartz installefd on *their* machine? (I'm sorry
>> -- I'm not near a Mac at the moment to test how it behaves if attempting to
>> run an X11 client without the server installed(?)).
>>
>> Maybe that helps?
>> Rick
>>
>> On Tue, Aug 2, 2016 at 12:56 PM, Suarez, Angel (GISS-611.0)[TRINNOVIM,
>> LLC] <angel.suarez at nasa.gov> wrote:
>>
>>> Hello Everyone,
>>> I’m at my wits end. Any help would be appreciated.
>>>
>>> I have a user that is having problems running idt locally on his machine.
>>>
>>> He gets:
>>> Error: Couldn't find per display information
>>>
>>> He is running:
>>> MacOS 10.10.5
>>> X11 2.7.9
>>> ncl-6.2.0
>>> Xcode 6.4 Build version 6E35b
>>> gcc version 4.8.2 (MacPorts gcc48 4.8.2_2)
>>> X11 forwarding is enabled in sshd_config and ssh_config
>>>
>>> I’m able to ssh to his machine and xclock and xterm popup on my machine,
>>> so it doesn’t seem to be an issue with X11 forwarding.
>>>
>>>
>>> Many thanks in advance,
>>> Angel
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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>>
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