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 -- [ ~.,_ Enzo Nicosia aka KatolaZ - GLUGCT -- Freaknet Medialab ] [ "+. katolaz [at] freaknet.org --- katolaz [at] yahoo.it ] [ @) http://kalos.mine.nu --- Devuan GNU + Linux User ] [ @@) http://maths.qmul.ac.uk/~vnicosia -- GPG: 0B5F062F ] [ (@@@) Twitter: @KatolaZ - skype: katolaz -- github: KatolaZ ]
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