> On 12 Nov 2021, at 6:59 pm, Tom <[email protected]> wrote:
>
>
>>
>>> Hi,
>>>
>>> when trying to run an X11 program, I get the following error message:
>>>
>>> (putty:8198): Gtk-WARNING **: 00:06:49.190: cannot open display: :0
>>>
>>> How can I fix that?
>>
>> Assuming you are running Mac OS X 10.5 or later:
>>
>> Check your .zprofile or .profile or .bash_profile for a line like:
>>
>> DISPLAY=:0
>>
>> Delete it.
>>
>> The MacPorts 2.6.4 installer for macOS 11 erroneously added this line. This
>> problem has been fixed in newer versions of the MacPorts installer but any
>> erroneous DISPLAY line added by the 2.6.4 installer needs to be removed
>> manually.
>
> Now xorg-server is starting and quiting. The app does not appear.
> What could be the problem?
Impossible to say without more data.
Do you have any crash logs in Console ? Any other messages ?
What application are you running ? Try install a simple one like xclock and see
if that works ?
Have you tired removing then reinstalling the xorg-server port ?
Are you actually using the xorg-server X11 server or do you perhaps have
another one installed instead ?
Have you logged out and back in again, as required by the xorg-server
instalation ?
Chris
