:: Re: [DNG] New behaviour under Devua…
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Author: KatolaZ
Date:  
To: dng
Subject: Re: [DNG] New behaviour under Devuan.
On Thu, Sep 21, 2017 at 11:12:19AM -0400, Renaud (Ron) OLGIATI wrote:
> Under Debian, I could su to root in a console, and launch gparted from the CLI.
>
> Now, I get:
>
> ron@ron:~/Desktop $ su
> Password:
> No protocol specified
> xmodmap: unable to open display ':0.0'
> No protocol specified
> xmodmap: unable to open display ':0.0'
> No protocol specified
> xmodmap: unable to open display ':0.0'
> No protocol specified
> xmodmap: unable to open display ':0.0'
> No protocol specified
> xmodmap: unable to open display ':0.0'
> No protocol specified
> xmodmap: unable to open display ':0.0'
>
> root@ron:/home/ron/Desktop # gparted
> No protocol specified
>
> (gpartedbin:4721): Gtk-WARNING **: cannot open display: :0.0
>
> What did I do wrong ?
>
> And by the way, logging in under xdm (?) I had a shock when the Debian name and loogo appeared on the login screen...
>


you probably just need to `xhost +` from the "regular" user account
before su-ing. By default the current display is not accessible by any
user except the one who launched it. root is not an exception.

My2Cents

KatolaZ

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