Grass on MkLinux Problem

[Angus Carr]

If you are logged on as one user and then su'd to root, then you will
cause a permissions problem with the X display.

Try running grass as the user that logged in. If you prefer for other
reasons, you could try the xhost command, which describes to the X display
who can put a window up. To make it open to anyone (Yes- don't do this,
it's a security risk over the long term) try the command "xhost +" by the
logged-in user.

Enjoy!
Angus.

On Sun, 31 Jan 1999, Tom Gewecke wrote:

> 
> >One reason for this, I have learned, is that if you 'su - <user>' you do
> >not get the DISPLAY environment variable in your new shell.
> >So after suing and before running grass do a (in bash)
> >
> >export DISPLAY=:0.0
> >
> >and it should work. (Or just do not run grass from a su shell).
> 
> Thanks much for your response!  I gave it a try, but the message just
> changes to "Graph_Set:  Can't open :0.0".  I'm wondering if there is some
> kind of permission problem.  But I have been running GRASS as root to
> minimize that.  My understanding of what to check the permissions of is
> rather limited, unfortunately... Regards, Tom
> 
> 
> 
>