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Add per-key backlight off support and fix scroll lock indicator #472

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Lord-Memester Jun 1, 2026
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Delete keyboards/keychron/common/rgb/per_key_rgb.c.bak
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Merge pull request #1 from Lord-Memester/Lord-Memester-patch-1
Lord-Memester Jun 1, 2026
76d43af
support for setting per-key black, scroll lock indicator fix, fix typos
Lord-Memester Jun 1, 2026
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6 changes: 3 additions & 3 deletions keyboards/keychron/common/rgb/keychron_rgb.c
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Original file line number Diff line number Diff line change
@@ -245,7 +245,7 @@ static bool mixed_rgb_get_effect_list(uint8_t *data) {
uint8_t start = data[1];
uint8_t count = data[2];

if (count > 3 || region > EFFECT_LAYERS || start + count > EFFECTS_PER_LAYER) return false;
if (count > 3 || region >= EFFECT_LAYERS || start + count > EFFECTS_PER_LAYER) return false;

for (uint8_t i = 0; i < count; i++) {
data[1 + i * EFFECT_DATA_LEN] = effect_list[region][start + i].effect;
@@ -263,7 +263,7 @@ bool mixed_rgb_set_effect_list(uint8_t *data) {
uint8_t start = data[1];
uint8_t count = data[2];

if (count > 3 || region > EFFECT_LAYERS || start + count > EFFECTS_PER_LAYER) return false;
if (count > 3 || region >= EFFECT_LAYERS || start + count > EFFECTS_PER_LAYER) return false;
for (uint8_t i = 0; i < count; i++) {
if (data[3 + i * EFFECT_DATA_LEN] >= RGB_MATRIX_CUSTOM_MIXED_RGB) return false;
}
@@ -433,7 +433,7 @@ void os_state_indicate(void) {
}
# endif
# if defined(SCROLL_LOCK_INDEX)
if (host_keyboard_led_state().compose && !os_ind_cfg.disable.scroll_lock) {
if (host_keyboard_led_state().scroll_lock && !os_ind_cfg.disable.scroll_lock) {
rgb_matrix_set_color(SCROLL_LOCK_INDEX, rgb.r, rgb.g, rgb.b);
}
# endif
6 changes: 3 additions & 3 deletions keyboards/keychron/common/rgb/keychron_rgb_type.h
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Original file line number Diff line number Diff line change
@@ -20,9 +20,9 @@
enum {
PER_KEY_RGB_SOLID,
PER_KEY_RGB_BREATHING,
PER_KEY_RGB_REATIVE_SIMPLE,
PER_KEY_RGB_REATIVE_MULTI_WIDE,
PER_KEY_RGB_REATIVE_SPLASH,
PER_KEY_RGB_REACTIVE_SIMPLE,
PER_KEY_RGB_REACTIVE_MULTI_WIDE,
PER_KEY_RGB_REACTIVE_SPLASH,
PER_KEY_RGB_MAX,
};

40 changes: 28 additions & 12 deletions keyboards/keychron/common/rgb/per_key_rgb.c
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Original file line number Diff line number Diff line change
@@ -32,21 +32,30 @@ bool per_key_rgb_solid(effect_params_t *params) {

for (uint8_t i = led_min; i < led_max; i++) {
hsv = per_key_led[i];
hsv.v = rgb_matrix_config.hsv.v;
// If per-key brightness is 0, keep it off (don't apply global brightness)
// Otherwise, apply global brightness
if (per_key_led[i].v > 0) {

@CalcProgrammer1 CalcProgrammer1 Jun 24, 2026

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The Apply Global Brightness screws with per-key color values as is, I would recommend either just doing away with the global V entirely in per key mode or multiplying the key specific V by the global V.

hsv.v = rgb_matrix_config.hsv.v;
}
RGB rgb = hsv_to_rgb(hsv);
rgb_matrix_region_set_color(params->region, i, rgb.r, rgb.g, rgb.b);
}
return rgb_matrix_check_finished_leds(led_max);
}

bool per_key_rgb_breahting(effect_params_t *params) {
bool per_key_rgb_breathing(effect_params_t *params) {
RGB_MATRIX_USE_LIMITS(led_min, led_max);
HSV hsv;
uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 8);

for (uint8_t i = led_min; i < led_max; i++) {
hsv = per_key_led[i];
hsv.v = scale8(abs8(sin8(time) - 128) * 2, rgb_matrix_config.hsv.v);
// If per-key brightness is 0, keep it off during breathing
if (per_key_led[i].v > 0) {
hsv.v = scale8(abs8(sin8(time) - 128) * 2, rgb_matrix_config.hsv.v);
} else {
hsv.v = 0;
}
RGB rgb = hsv_to_rgb(hsv);
RGB_MATRIX_TEST_LED_FLAGS();
rgb_matrix_region_set_color(params->region, i, rgb.r, rgb.g, rgb.b);
@@ -74,10 +83,12 @@ bool per_key_rgb_reactive_simple(effect_params_t *params) {
HSV hsv = per_key_led[i];

if (offset > 255) offset = 255;
hsv.v = scale8(255 - offset, rgb_matrix_config.hsv.v);

// if (per_key_led[i].v < hsv.v)
// hsv.v = per_key_led[i].v;
if (per_key_led[i].v > 0) {
hsv.v = scale8(255 - offset, rgb_matrix_config.hsv.v);
} else {
hsv.v = 0;
}

RGB rgb = hsv_to_rgb(hsv);
rgb_matrix_region_set_color(params->region, i, rgb.r, rgb.g, rgb.b);
@@ -104,9 +115,14 @@ bool per_key_rgb_effect_runner_reactive_splash(uint8_t start, effect_params_t *p
}
hsv.h = per_key_led[i].h;
hsv.s = per_key_led[i].s;
hsv.v = scale8(hsv.v, rgb_matrix_config.hsv.v);
// if (per_key_led[i].v < hsv.v)

// hsv.v = per_key_led[i].v;
if (per_key_led[i].v > 0) {
hsv.v = scale8(hsv.v, rgb_matrix_config.hsv.v);
} else {
hsv.v = 0;
}

RGB rgb = hsv_to_rgb(hsv);
rgb_matrix_region_set_color(params->region, i, rgb.r, rgb.g, rgb.b);
}
@@ -142,15 +158,15 @@ bool per_key_rgb_reactive_splash(effect_params_t *params) {
bool per_key_rgb(effect_params_t *params) {
switch (per_key_rgb_type) {
case PER_KEY_RGB_BREATHING:
return per_key_rgb_breahting(params);
return per_key_rgb_breathing(params);

case PER_KEY_RGB_REATIVE_SIMPLE:
case PER_KEY_RGB_REACTIVE_SIMPLE:
return per_key_rgb_reactive_simple(params);

case PER_KEY_RGB_REATIVE_MULTI_WIDE:
case PER_KEY_RGB_REACTIVE_MULTI_WIDE:
return per_key_rgb_reactive_multi_wide(params);

case PER_KEY_RGB_REATIVE_SPLASH:
case PER_KEY_RGB_REACTIVE_SPLASH:
return per_key_rgb_reactive_splash(params);

default:
33 changes: 0 additions & 33 deletions keyboards/keychron/q6_max/ansi_encoder/config.h
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73 changes: 0 additions & 73 deletions keyboards/keychron/q6_max/ansi_encoder/keymaps/keychron/keymap.c
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85 changes: 0 additions & 85 deletions keyboards/keychron/q6_max/config.h
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59 changes: 0 additions & 59 deletions keyboards/keychron/q6_max/q6_max.c
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