The blank page is just a 500 Internal Error. I don't see anything when I right click and look for the source code but below you can see the output from wireshark that shows the 500 internal server error.
I have 3 php.ini files
root@debian1:~# find / -name php.ini
and I see short_open_tag is set to on on both
; This directive determines whether or not PHP will recognize code between
; <? and ?> tags as PHP source which should be processed as such. It's been
; recommended for several years that you not use the short tag "short cut" and
; instead to use the full <?php and ?> tag combination. With the wide spread use
; of XML and use of these tags by other languages, the server can become easily
; confused and end up parsing the wrong code in the wrong context. But because
; this short cut has been a feature for such a long time, it's currently still
; supported for backwards compatibility, but we recommend you don't use them.
; Default Value: On
; Development Value: Off
; Production Value: Off
short_open_tag = On
While the one in the teamcal directory only contains 1 line "register_globals=off"
Is there any debug I can turn on or any log I can look into?
GET /teamcal/ HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.91 Safari/537.36
HTTP/1.0 500 Internal Server Error
Date: Mon, 17 Feb 2014 03:31:26 GMT
Server: Apache/2.2.22 (Debian)