Re: cannot open display: localhost:0.0 [solved]

[Rob van der Putten <rob@sput.nl>]

Hi there


On 23/09/2018 20:07, Grzesiek Sójka wrote:

> On 9/23/18 2:36 PM, Rob van der Putten wrote:
> > On 23/09/2018 13:48, Grzegorz Sójka wrote:
> >
> > > I need to allow remote applications to connect to xorg. Since I log 
> > > in using lxdm i have tcp_listen=1 in /etc/lxdm/lxdm.conf. Thus Xorg 
> > > is running without -nolisten tcp flag. Unfortunately:
> > >
> > > $ xhost +localhost; DISPLAY=localhost:0.0 xterm
> > > localhost being added to access control list
> > > xterm: Xt error: Can't open display: localhost:0.0
> > >
> > > Any suggestions??
> >
> > Did you check port 6000?
> > root@pc6:~# netstat -anp | grep 6000
> > tcp   0   0 0.0.0.0:6000   0.0.0.0:*   LISTEN   2684/Xorg
> > tcp6  0   0 :::6000        :::*        LISTEN   2684/Xorg
>
> Bingo! The command gave me empty output.

Always start low level.

> Now -nolisten tcp is the 
> default Xorg behaviour. Thus, you need to add -listen tcp flag 
> explicitly.

That changed some time ago.

> I added:
> arg=/usr/bin/X -background vt07 -listen tcp
> to /etc/lxdm/lxdm.conf and now it works perfectly.

Sometimes it's in /etc/X11/xdm/Xservers or /etc/X11/xinit/xserverrc
With lightdm it's in /etc/lightdm/lightdm.conf;
xserver-allow-tcp=true


Regards,
Rob