X11 app - unable to open display ""

Chris Jones jonesc at hep.phy.cam.ac.uk
Wed Apr 17 09:20:18 UTC 2019


 > sudo port install xorg-server

log out then back in.

Then you will have one for sure.

On 17/04/2019 10:15 am, Christoph Kukulies wrote:
> Fine. How can I figure out about the configuration of my X11 server? 
> Don’t know whether I have an X11 server at all.
> port list tells me I have
> 
> xorg-server                    @1.20.4         x11/xorg-server
> 
> among other lots of xorg-stuff.
>> Christoph
> 
> 
>> Am 17.04.2019 um 11:09 schrieb Chris Jones <jonesc at hep.phy.cam.ac.uk 
>> <mailto:jonesc at hep.phy.cam.ac.uk>>:
>>
>> Hi,
>>
>> Your problem is
>>
>> export DISPLAY=:0
>> xhost +
>>
>> don't do this.
>>
>> Just run gv, and allow your X11 server to automatically tart, which it 
>> should, if it is correctly configured.
>>
>> Chris
>>
>> On 17/04/2019 10:06 am, Christoph Kukulies wrote:
>>> I installed the „gv“ port (ghostview). Worked.  I can give gv on the 
>>> command line (shell prompt).
>>> But I’m getting:
>>> Christophs-MBP:~ kuku$ export DISPLAY=:0
>>> Christophs-MBP:~ kuku$ xhost +
>>> xhost:  unable to open display ":0"
>>> Christophs-MBP:~ kuku$ gv
>>> gv: Unable to open the display.
>>> Christophs-MBP:~ kuku$
>>> I thought, X11 apps can run against the macOS desktop server, can’t they?
>>> Or do I have to run an extra X11-server?
>>>>>> Christoph
> 


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