<?php
 function print_nice($elem,$max_level=10,$print_nice_stack=array()){
 if(is_array($elem) || is_object($elem)){
 if(in_array(&$elem,$print_nice_stack,true)){
 echo "<font color=red>RECURSION</font>";
 return;
 }
 $print_nice_stack[]=&$elem;
 if($max_level<1){
 echo "<font color=red>nivel maximo alcanzado</font>";
 return;
 }
 $max_level--;
 echo "<table border=1 cellspacing=0 cellpadding=3 width=100%>";
 if(is_array($elem)){
 echo '<tr><td colspan=2  style="background-color:#333333;"><strong><font  color=white>ARRAY</font></strong></td></tr>';
 }else{
 echo '<tr><td colspan=2 style="background-color:#333333;"><strong>';
 echo '<font color=white>OBJECT Type: '.get_class($elem).'</font></strong></td></tr>';
 }
 $color=0;
 foreach($elem as $k => $v){
 if($max_level%2){
 $rgb=($color++%2)?"#888888":"#BBBBBB";
 }else{
 $rgb=($color++%2)?"#8888BB":"#BBBBFF";
 }
 echo '<tr><td valign="top" style="width:40px;background-color:'.$rgb.';">';
 echo '<strong>'.$k."</strong></td><td>";
 print_nice($v,$max_level,$print_nice_stack);
 echo "</td></tr>";
 }
 echo "</table>";
 return;
 }
 if($elem === null){
 echo "<font color=green>NULL</font>";
 }elseif($elem === 0){
 echo "0";
 }elseif($elem === true){
 echo "<font color=green>TRUE</font>";
 }elseif($elem === false){
 echo "<font color=green>FALSE</font>";
 }elseif($elem === ""){
 echo "<font color=green>EMPTY STRING</font>";
 }else{
 echo str_replace("\n","<strong><font color=red>*</font></strong><br>\n",$elem);
 }
 }
 ?>

At first I thought it was the monitor itself so swapped it for another one but as it turns out it was s daemon called ‘upowerd’ causing the problem. Thanks to the guys over at #radeon on freenode for pointing this out.

upowerd polls the monitor every 30 seconds and on some VGA setups this causes the monitor to briefly switch off and then on again. Killing the upowerd process stops the monitor doing so but within a couple of minutes the process starts back up again. In the end I just moved the binary somewhere else so it couldn’t be started and it has cured the problem. From what I can tell upowerd not running isn’t a huge problem but time will tell if it comes back to bite me in the future…

** EDIT – Well there is a problem with not running upowerd it would seem. The PC won’t go into standby without it running. I have decided to look into sorting this out properly but in the short term I am just running upowerd before I put the machine into standby and killing it when I switch it back on. This seems to do the job OK but not an ideal long term solution…

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If you attempt this with some versions of XEmacs the open file dialog will not appear and you will see the following error:

window height 0 too small (after splitting)

There is a workaround for this bug (which hopefully will be fixed in an upcoming XEmacs release).

First you have to locate the file minibuf.elc. In Ubuntu 10.10 (with XEmacs version 21.4.22) this file is located in :

/usr/share/xemacs-21.4.22/lisp/minibuf.elc

Open this file and within it you need to search for the following string:

split-window frame-height 3

Replace the 3 in that line with a 5. After this open your init.el file. This is usually in ~/.xemacs – In this file add the following line:

(load-library "minibuf.elc")

Et Voila! After you have done all this you should be able to get the open file dialog to appear.

#!/bin/bash

for file in `ls *.pdf`
do
   convert $file `echo $file | sed 's/\.pdf$/\.jpg/'`
done

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