Debugging not starting

Question

UPDATE:

I've spent way too much time on this and have decided to ditch it and continue using the clunky NetBeans.

ORIGINAL QUESTION:

I'm having some difficulty getting xdebug to work with sublime text 2.

What I have done so far is install:

1. LAMP,
2. php5-xdebug
3. python2.6
4. sublime-text-2
5. sublimexdebug

If I then use sublime to open a php file and press shift+f8, the xdebug menu pops up from which I can add/remove breakpoint and also start debugging.

Some php:

Menu drops down when I press shift+f8:

Debugging started:

In that image it says:

Xdebug: No URL defined in project settings file

Info.sublime-project contains:

{
    "folders":
    [
        {
            "path": "/var/www"
        }
    ],

    "settings": {
        "xdebug": { "url": "http://localhost" }
    }
}

As you can see from the 3rd screenshot, I have started debugging and nothing happens, no errors, no browser window opens, nothing. If I manually navigate to localhost/info.php, the page loads as normal. If I manually add ?XDEBUG_SESSION_START=sublime.xdebug to the end of the url so localhost/info.php?XDEBUG_SESSION_START=sublime.xdebug and hit refresh on the browser, the page loads as normal and debugging still doesn't start.

What am I doing wrong?

UPDATE: Some info about ports:

Before trying to start xdebug via sublime text 2

oshirowanen@ubuntu:~$ netstat -antp
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      -               
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN      -               
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      -                 
tcp        0      0 90.190.20.220:54913     90.180.80.70:443        ESTABLISHED 2439/python     
tcp        0      0 90.190.20.220:51727     190.40.210.160:443      TIME_WAIT   -               
tcp        1      0 90.190.20.220:50967     90.180.90.20:80         CLOSE_WAIT  2349/ubuntu-geoip-p
tcp6       0      0 :::80                   :::*                    LISTEN      -               
oshirowanen@ubuntu:~$ 

After starting chromium manually and starting xdebug via sublime text 2

oshirowanen@ubuntu:~$ netstat -antp
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:17500           0.0.0.0:*               LISTEN      2241/dropbox    
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      -               
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN      -               
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      -               
tcp        0      0 127.0.0.1:59424         127.0.0.1:80            ESTABLISHED 2924/chromium-brows
tcp        0      0 127.0.0.1:43123         127.0.0.1:9000          ESTABLISHED -               
tcp        0      0 127.0.0.1:9000          127.0.0.1:43123         ESTABLISHED 2903/sublime_text
tcp        0      0 90.190.20.220:40809     170.190.40.70:443       ESTABLISHED 2924/chromium-brows
tcp        0      0 90.190.20.220:54913     90.180.80.70:443        ESTABLISHED 2439/python     
tcp        0      0 90.190.20.220:43900     170.190.70.90:443       ESTABLISHED 2924/chromium-brows
tcp        0      0 90.190.20.220:35259     170.190.70.100:443      ESTABLISHED 2924/chromium-brows
tcp        0      0 127.0.0.1:59426         127.0.0.1:80            TIME_WAIT   -               
tcp        0      0 90.190.20.220:37922     170.190.70.90:443       ESTABLISHED 2924/chromium-brows
tcp        1      0 90.190.20.220:50967     90.180.90.20:80         CLOSE_WAIT  2349/ubuntu-geoip-p
tcp        0      0 90.190.20.220:40847     170.190.40.60:80        ESTABLISHED 2924/chromium-brows
tcp6       0      0 :::80                   :::*                    LISTEN      -               
tcp6       0      0 127.0.0.1:80            127.0.0.1:59423         TIME_WAIT   -               
tcp6       0      0 127.0.0.1:80            127.0.0.1:59424         ESTABLISHED -               
oshirowanen@ubuntu:~$ 

Answer 1

Some tips:

1. Check that Xdebug is running checking the information generated by the phpinfo command.

2. Enable remote debugging in the xdebug configuration (and verify again with the phpinfo command):

   xdebug.remote_enable=1

3. I don't use the xdebug setting in Sublime Text. I think it is not necessary.

4. Open the console in Sublime Text. Any problem is logged in the console. There are some problems in Ubuntu reported in the pulgin homepage.

5. I use a browser extension to activate or deactivate the debugging. In Chrome look for "Xdebug Helper for Chrome". You need to configure the cookie name as "sublime.xdebug".