When I open GParted , the icon of GParted appear near cursor for 1 minute, but after that the icon disappears and GParted didn't open

but when I run it on terminal with this instruction

sudo gparted

GParted opens immediately.

I was had Ubuntu 11.10 and recently installed KDE on it .


It's a bug in gparted (to be precise, the wrapper around it, gparted-pkexec). If you run gparted-pkexec in the terminal, you'll see something like:

No protocol specified
No protocol specified

(gpartedbin:19659): Gtk-WARNING **: cannot open display: :0

Replace the contents of to use kdesudo instead of pkexec to work around this issue:

sudo tee /usr/bin/gparted-pkexec <<'EOF'
kdesudo "/usr/sbin/gparted" "$@"

Update: this is a bug in PolicyKit combined with a condition in KDE ($XAUTHORITY is not set).

  • I entered this instruction in terminal. Even copy them into terminal . but it didn't worked for me :( – hamed Mar 30 '12 at 13:02
  • You should see the two lines in the middle coming back unchanged when executing it in the terminal. What happens if you execute gparted-pkexec in a terminal after doing this? You should get a password dialog from kdesudo. – Lekensteyn Mar 30 '12 at 13:26
  • Yeah, I see the two lines but When I run gparted-pkexec in terminal, I get this error /usr/bin/gparted-pkexec: 2: kdesudo: not found – hamed Mar 30 '12 at 13:33
  • Ooh, you have not a full KDE system (Kubuntu). Try substituting "kdesudo" for "gksu" for GNOME. – Lekensteyn Mar 30 '12 at 13:58

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