Update slew rate threshold

src/defs.h

@@ -398,6 +398,7 @@ typedef struct {
 #define GENLOCK_THRESHOLDS {0, 5, 10, 16, 25, 35}
 #define GENLOCK_LOCKED_THRESHOLD 2
 #define GENLOCK_FRAME_DELAY 12
+#define GENLOCK_SLEW_RATE_THRESHOLD 5000
 
 #define MEASURE_NLINES 100
 #define PLL_PPM_LO 1

src/rgb_to_hdmi.c

@@ -1281,7 +1281,7 @@ static void recalculate_hdmi_clock(int vlockmode, int genlock_adjust) {
               break;
           }
           //log_info("%d", ppm_diff);
-          if (abs(ppm_diff) > genlock_speed && abs(ppm_diff) < (genlock_speed * 10)) {
+          if (abs(ppm_diff) > genlock_speed && abs(ppm_diff) < GENLOCK_SLEW_RATE_THRESHOLD) {
              restricted_slew_rate = 1;
              if (ppm_diff >= 0) {
                  f2 = current_pllh_clock + (current_pllh_clock * genlock_speed / 1000000);