diff --git a/colorchord2/DisplayFileWrite.c b/colorchord2/DisplayFileWrite.c
index 3c049d0..915a259 100644
--- a/colorchord2/DisplayFileWrite.c
+++ b/colorchord2/DisplayFileWrite.c
@@ -25,8 +25,10 @@ struct FileWriteDriver
 	int lights_file;
 	int total_leds;
 	int inflate_to_u32;
+	int file_thread_usleep;
 	int asynchronous;
 	uint32_t pass_buffer[MAX_LEDS];
+	volatile int flagchanges;
 	og_thread_t  rt_thread;
 };
 
@@ -35,8 +37,9 @@ static void * LightsWrite( void * v )
 	struct FileWriteDriver * d = (struct FileWriteDriver *)v;
 	while(1)
 	{
-
-	
+		usleep( d->file_thread_usleep );
+		if( !d->flagchanges ) continue; 
+		d->flagchanges = 0;
 		if( d->lights_file > 0 )
 		{
 			int btos = ((d->inflate_to_u32)?4:3)*d->total_leds;
@@ -65,6 +68,7 @@ static void * LightsWrite( void * v )
 		close( d->lights_file );
 		d->lights_file = 0;
 	}
+	return 0;
 }
 
 static void FileWriteUpdate(void * id, struct NoteFinder*nf)
@@ -85,6 +89,7 @@ static void FileWriteUpdate(void * id, struct NoteFinder*nf)
 			d->pass_buffer[i] = ol[0] | (ol[1]<<8) | (ol[2]<<16) |  0xff000000;
 		}
 	}
+	d->flagchanges = 1;
 
 }
 
@@ -95,6 +100,7 @@ static void FileWriteParams(void * id )
 	d->total_leds = 300;	RegisterValue( "leds", PAINT, &d->total_leds, sizeof( d->total_leds ));
 	d->inflate_to_u32 = 1;  RegisterValue( "inflate_to_u32", PAINT, &d->inflate_to_u32, sizeof( d->inflate_to_u32 ));
 	d->asynchronous = 1;	RegisterValue( "file_async", PAINT, &d->asynchronous, sizeof( d->asynchronous ));
+	d->file_thread_usleep = 10000;	RegisterValue( "file_thread_usleep", PAINT, &d->file_thread_usleep, sizeof( d->file_thread_usleep ));
 }
 
 static struct DriverInstances * DisplayFileWrite(const char * parameters)
diff --git a/colorchord2/keyboard_rgb_test.conf b/colorchord2/keyboard_rgb_test.conf
index 311425a..d660bf8 100644
--- a/colorchord2/keyboard_rgb_test.conf
+++ b/colorchord2/keyboard_rgb_test.conf
@@ -2,7 +2,7 @@
 #  https://github.com/cnlohr/clevo_xsm_wmi
 
 cpu_autolimit = 1
-headless=0
+headless=1
 
 #General GUI properties.
 title = PA Test
@@ -41,7 +41,7 @@ note_out_chop = 0.05000
 
 
 #DisplayArray
-outdrivers = OutputCells, DisplayFileWrite, DisplayArray
+outdrivers = OutputCells, DisplayFileWrite # DisplayArray
 
 lightsfile = /sys/devices/platform/clevo_xsm_wmi/kb_rgb
 inflate_to_u32 = 1
@@ -50,8 +50,9 @@ lighty = 3
 fromsides = 1
 leds = 3
 qtyamp = 20
+file_thread_usleep = 18000
 
-satamp = 4.800
+satamp = 3.00
 amppow = 2.510
 distpow = 1.500