Date: Tue, 25 Jul 2017 13:28:09 -0600 From: JD <jd1008@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD-11, Mate, Terminal, Gvim Message-ID: <59779BC9.8030809@gmail.com> In-Reply-To: <20170725210647.6f4c8fcd.freebsd@edvax.de> References: <a973035703bd510d1226163df5ac9a34.squirrel@webmail.harte-lyne.ca> <20170725210647.6f4c8fcd.freebsd@edvax.de>
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On 07/25/2017 01:06 PM, Polytropon wrote: > On Tue, 25 Jul 2017 10:39:29 -0400, James B. Byrne via freebsd-questions wrote: >> When setting up new hosts I usually open an especially coloured >> terminal instance and use 'su -l' to become root. I also typically >> edit using gvim. However, this combination does not work for me on >> FreeBSD with Mate as it did for me under CentOD-6 and Gnome2. When >> inside a terminal window as root instead of opening an Xwindow editor >> when running gvim I get a 'E233: cannot open display' error. > This is to be expected. > > With "su -l", a full login is simulated, so all environmental > variables will be reset - but $DISPLAY is needed for X. There > are basically two solutions: > > 1. Set $DISPLAY accordingly, for example to :0.0. Refer to the > documentation of your shell on how to do it, for example in > C shell "setenv DISPLAY :0.0", in sh/bash "export DISPLAY=:0.0". > > 2. Use "su -m" instead, which will preserve the environment of > your user, and $DISPLAY will be kept set. > > See "man su" for details. There is another way which some people might criticize as unsafe, but here it is: as the normal user on the X display, type in the terminal xhost +root@localhost sometimes you have to completely qualify "localhost" with how the name appears in /etc/hosts: such as: localhost.localdomain After that, su to root and as root, issue the command setenv DISPLAY "0:0" if using bash or sh , then export DISPLAY="0:0" now, as root, any graphical tool you invoke will run.
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