unable to open display "localhost:0.0" persists.

Google "localhost:0.0" and you get 358,000 hits. Other than permission
problems, this may be the most stumbled over mis-over-engineered feature
is all of Linux. This is a severe and perennial usability problem.

In a clean Ubuntu 9.10 install, I can find zero tools to address the
problem. If a third of a million people had enough of a problem with it
to actually write to a news group, one could argue that millions have
tripped over the same issue. Does this not scream out for an install
option or some type of system tool like
Applications->System->Fixed_FUBARred_LOCOHOST?

I found a bug report, Bug #370607, "X applications won't run under sudo", with 
similar results, but this problem has existed for years. 
Bryce Harrington  wrote on 2009-06-10: 
I would first check gdm.conf...   Next I would check what options are being 
specified on the X binary. Here's mine:
  /usr/X11R6/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7

`locate gdm.conf` ->  /etc/init/gdm.conf. I have no line anything like
this.  Where is "-nolisten" being specified in this release? Is there
any tool to configure the x server? Where?

When people have to spend many hours tracking down the latest
implementation of these type of bugs, they get severely turned off on
Linux.

    BrianP

-- 
suspend to ram; 5 minute wakeup time; unable to open display localhost:0.0, no 
guis could be launched (gkrellm)
https://bugs.launchpad.net/bugs/459117
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