diff --git a/examples/torture.c b/examples/torture.c
index 59e67ba..42ebeea 100644
--- a/examples/torture.c
+++ b/examples/torture.c
@@ -28,10 +28,10 @@
 #include <monome.h>
 
 #define MONOME_OSC "osc.udp://127.0.0.1:8080/monome"
-#define MONOME_SERIAL "/dev/ttyUSB0"
+#define MONOME_SERIAL "/dev/ttyACM0"
 
 #define WIDTH  16
-#define HEIGHT 16
+#define HEIGHT 8
 
 void random_chill() {
 	struct timespec rem, req;
@@ -47,7 +47,7 @@ int main(int argc, char **argv) {
 	unsigned int w, h, y, s;
 	uint16_t buf;
 
-	if( !(monome = monome_open(MONOME_OSC, "8000")) ) {
+	if( !(monome = monome_open(MONOME_SERIAL, "8000")) ) {
 		fprintf(stderr, "couldn't open monome\n");
 		exit(EXIT_FAILURE);
 	}
diff --git a/src/platform/posix.c b/src/platform/posix.c
index d610bef..f1ba899 100644
--- a/src/platform/posix.c
+++ b/src/platform/posix.c
@@ -99,7 +99,7 @@ int monome_platform_open(monome_t *monome, const monome_devmap_t *m,
 	struct termios nt, ot;
 	int fd;
 
-	if( (fd = open(dev, O_RDWR | O_NOCTTY | O_NONBLOCK)) < 0 ) {
+	if( (fd = open(dev, O_RDWR | O_NOCTTY)) < 0 ) {
 		perror("libmonome: could not open monome device");
 		return 1;
 	}
@@ -131,7 +131,7 @@ int monome_platform_open(monome_t *monome, const monome_devmap_t *m,
 	nt.c_oflag &= ~(OCRNL | ONLCR | ONLRET | ONOCR |
 	                OFILL | OPOST);
 
-	nt.c_cc[VMIN]  = 1;
+	nt.c_cc[VMIN]  = 0;
 	nt.c_cc[VTIME] = 0;
 
 	if( tcsetattr(fd, TCSANOW, &nt) < 0 )