Arch Linux

WyoPBS

Member

From: Cheyenne, WY

Registered: 2007-10-05

Posts: 101

Website

[Solved] Cannot open display :0.0

Yup, the xhost thing fixed it (although I had to use localhost rather than local).  Thanks!

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I sometimes use secondary accounts by way of profile control, that is if I want to try programs with different settings I'll su to a different shell account.  Up until this week when I upgraded to the latest everything, I could open an xterm, su to my secondary login, and start firefox or whatever just fine.

Now suddenly I can't do that; I get two lines of
No protocol specified

and then
Error: Cannot open display:  :0.0

And one more
No protocol specified

I'm sure it's a permissions issue, and probably fixes a security hole from previous versions; root can still do this but not my non-root accounts.  Any idea which device files I need to modify to allow account B to open a window on account A's desktop?

Last edited by WyoPBS (2011-12-29 04:15:59)

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Peter B. Steiger
Cheyenne, WY

eirika

Member

From: New York

Registered: 2009-09-14

Posts: 65

Re: [Solved] Cannot open display :0.0

try

xhost +local:

in your primary account.

Also check these topics:

https://bbs.archlinux.org/viewtopic.php?id=45941
https://bbs.archlinux.org/viewtopic.php?id=122848