Arch Linux

Pacopag

Member

Registered: 2011-05-29

Posts: 287

[SOLVED] sudo and geany

Hi.  I can't seem to run "sudo geany /path/to/a/file".  It gives me a message

No protocol specified
Geany: cannot open display

Actually, I get a message to this effect with any command like "sudo launchsomeguiapp"

If I run (which I found in another thread)

xhost
xhost +localhost

then it works fine.  I'm wondering where to put these commands so that they run automatically on startup (is this a bad idea?  e.g. rc.sysinit ?), or if there is some other way to get sudo to launch guis.

Last edited by Pacopag (2011-06-27 16:14:53)

WorMzy

Forum Moderator

From: Scotland

Registered: 2010-06-16

Posts: 11,842

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Re: [SOLVED] sudo and geany

You shouldn't use sudo for graphical apps, not unless you want to risk messing up the permissions on your config files + .Xauthority file. Use gksu, gksudo, kdesudo, su -, etc. where possible.

Last edited by WorMzy (2011-06-21 20:06:38)

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Gusar

Member

Registered: 2009-08-25

Posts: 3,605

Re: [SOLVED] sudo and geany

I've been using sudo for graphical apps since forever. And I've never needed the xhost trick (which I've read is not a good thing to do, but I don't know details). In fact, I just found out I don't even have xhost!

Stebalien

Member

Registered: 2010-04-27

Posts: 1,237

Website

Re: [SOLVED] sudo and geany

Try adding/uncommenting the following in your sudoers file.

Defaults env_keep += "XDG_SESSION_COOKIE XAUTHORITY"

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Pacopag

Member

Registered: 2011-05-29

Posts: 287

Re: [SOLVED] sudo and geany

Thanks for your replies.  I installed gksu and gksudo works great.