new -xx feature for -S, shows display manager running if in X. Supports currently the following:

entrance gdm gdm3 kdm kdm-trinity lightdm lxdm mdm nodm slim wdm xdm

there's been a relative flood of new display managers, and a few more are probably coming, so
it's actually a somewhat useful thing to have this option.

This is also going to close issue 30, which is not going to be further handled due to ratrace
of trying to support various software packages running on the systems.

Also updated man page for that -xx item.

inxi

@@ -1,8 +1,8 @@
 #!/bin/bash
 ########################################################################
 ####  Script Name: inxi
-####  version: 1.8.5
+####  version: 1.8.6
-####  Date: May 27 2012
+####  Date: June 24 2012
 ####  Patch Number: 00
 ########################################################################
 ####  SPECIAL THANKS
@@ -2232,6 +2232,7 @@ show_options()
 	print_screen_output "    -M - Adds chassis information, if any data for that is available."
 	print_screen_output "    -R - Adds superblock (if present); algorythm, U data. Adds system info line (kernel support,"
 	print_screen_output "         read ahead, raid events). Adds if present, unused device line. Resync line, shows progress bar."
+	print_screen_output "    -S - Adds display manager (dm) to desktop output, if in X (like kdm, gdm3, lightdm)."
 	print_screen_output "    -xx -@ <11-14> - Automatically uploads debugger data tar.gz file to ftp.techpatterns.com."
 	print_screen_output "-z  Adds security filters for IP addresses, Mac, and user home directory name. Default on for irc clients."
 	print_screen_output "-Z  Absolute override for output filters. Useful for debugging networking issues in irc for example."
@@ -3389,6 +3390,32 @@ get_de_app_version()
 	echo $version
 }
 
+# see which dm has started if any
+get_display_manager()
+{
+	eval $LOGFE
+	local dm_id_list='entrance/entranced.pid gdm.pid gdm3.pid kdm.pid lightdm.pid lxdm.pid mdm.pid nodm.pid slim.lock wdm.pid xdm.pid' 
+	local dm_id='' dm=''
+	local x_is_running=$( ps aux | grep '/usr.*/X' | grep -Eivc '(grep|/Xprt)' )
+
+	for dm_id in $dm_id_list
+	do
+		if [[ -e /var/run/$dm_id || -e /run/$dm_id ]];then
+			dm=$( basename $dm_id | cut -d '.' -f 1 )
+		fi
+	done
+	# might add this in, but the rate of new dm's makes it more likely it's an unknown dm, so
+	# we'll keep output to N/A
+# 	if [[ -n $x_is_running && -z $dm ]];then
+# 		dm='startx'
+# 	fi
+	echo $dm
+
+	log_function_data "display manager: $dm"
+
+	eval $LOGFE
+}
+
 # for more on distro id, please reference this python thread: http://bugs.python.org/issue1322
 ## return distro name/id if found
 get_distro_data()
@@ -8283,7 +8310,7 @@ print_sensors_data()
 print_system_data()
 {
 	eval $LOGFS
-	local system_data='' bits='' desktop_environment='' 
+	local system_data='' bits='' desktop_environment='' dm_data=''
 	local host_kernel_string='' de_distro_string='' host_string='' desktop_type='Desktop'
 	local host_name=$HOSTNAME
 	local current_kernel=$( uname -rm ) # | gawk '{print $1,$3,$(NF-1)}' )
@@ -8296,6 +8323,13 @@ print_system_data()
 		if [[ -z $desktop_environment ]];then
 			desktop_environment='N/A'
 		fi
+		if [[  $B_EXTRA_EXTRA_DATA == 'true' ]];then
+			dm_data=$( get_display_manager )
+			if [[ -z $dm_data ]];then
+				dm_data='N/A'
+			fi
+			dm_data=" ${C1}dm$SEP3${C2} $dm_data"
+		fi
 	else
 		if [[ -z $tty_session && $B_CONSOLE_IRC == 'true' ]];then
 			tty_session=$( get_console_irc_tty )
@@ -8306,7 +8340,8 @@ print_system_data()
 		desktop_environment="tty$tty_session"
 		desktop_type='Console'
 	fi
-	de_distro_string="${C1}$desktop_type$SEP3${C2} $desktop_environment ${C1}Distro$SEP3${C2} $distro"
+	
+	de_distro_string="${C1}$desktop_type$SEP3${C2} $desktop_environment$dm_data ${C1}Distro$SEP3${C2} $distro"
 	if [[ $B_EXTRA_DATA == 'true' ]];then
 		gcc_string=$( get_gcc_kernel_version )
 		if [[ -n $gcc_string ]];then

inxi.8

@@ -296,6 +296,10 @@ Show extra, extra data (only works with verbose or line output, not short form):
 read ahead, raid events). Adds if present, unused device line.  If device is resyncing, shows 
 resync progress line as well
 .TP
+.B -xx -S 
+- Adds, if run in X, display manager type to Desktop information, if present. If none, shows N/A.
+Supports most known display managers, like xdm, gdm, kdm, slim, lightdm, or mdm.
+.TP
 .B -xx -@ <11-14>
 - Automatically uploads debugger data tar.gz file to ftp.techpatterns.com.
 .TP