OSD elements randomly disappear in flight when using MSP/HDZero option & Walksnail Avatar video system.

[JoeSa3rd]

Current Behavior

During flight some OSD elements randomly disappear, of which never come back unless you power cycle the FC and Goggles. This happens at random in flight whether you are close in (E.g. 100-500ft) with clear LOS or flying further out. This same issue has happen on all 3 of my iNav/Avatar planes with various flight controller types all running iNav v5.1. I also have two other friends running iNav 5.0 and v5.1 with the same exact issue.

Steps to Reproduce

1. Any FC Running iNav v5.0 or v5.1.
2. Avatar FW 28.32.10 on VTX with Nano or Micro Camera.
3. Configure required VTX UART port with MSP/HDZero options.
4. Fly to experience OSD elements randomly disappear.

Expected behavior

OSD Elements should not disappear

Suggested solution(s)

Investigate why MSP is not working well with the Avatar video system to help find a root cause.

Additional context

Unfortunately I don't have any video captured of the issue as the Avatar goggles do not record the iNav OSD in flight.

Although I don't have any conclusive evidence I/we have noticed this issue more often when multiple people are flying the Avatar system at the same time but the issue still happens when flying alone but seems less often. again might not be related but wanted to share it.

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FC Matek F405-WMN or F405-WTE or H743-WLITE diff all of Matek F405-WMN

version

INAV/MATEKF405TE 5.1.0 Aug 19 2022 / 12:08:11 (76f22b25)

GCC-10.2.1 20201103 (release)

start the command batch

batch start

reset configuration to default settings

defaults noreboot

resources

mixer

mmix reset

mmix 0 1.000 0.000 0.000 0.000 mmix 1 1.000 0.000 0.000 0.000

servo mixer

smix reset

smix 0 1 1 100 0 -1 smix 1 2 0 100 0 -1 smix 2 3 0 -100 0 -1

servo

servo 1 1000 2000 1490 -100 servo 2 1000 2000 1490 -100 servo 3 1000 2000 1490 100

safehome

feature

feature -TX_PROF_SEL feature MOTOR_STOP feature GPS feature LED_STRIP feature PWM_OUTPUT_ENABLE feature FW_LAUNCH feature FW_AUTOTRIM

beeper

blackbox

blackbox -NAV_ACC blackbox NAV_POS blackbox NAV_PID blackbox MAG blackbox ACC blackbox ATTI blackbox RC_DATA blackbox RC_COMMAND blackbox MOTORS

map

map TAER

serial

serial 2 33554432 115200 115200 0 115200 serial 3 2 115200 115200 0 115200

led

led 0 1,0::CB:2

color

mode_color

aux

aux 0 0 0 1700 2100 aux 1 2 2 1700 2100 aux 2 12 2 900 1300 aux 3 45 6 1300 1700 aux 4 53 6 1700 2100 aux 5 11 5 1300 1700 aux 6 10 5 1700 2100 aux 7 21 4 1300 1700 aux 8 54 4 1700 2100 aux 9 54 2 1700 2100 aux 10 13 1 1300 2100 aux 11 47 3 900 1300

adjrange

rxrange

temp_sensor

wp

wp 0 invalid

osd_layout

osd_layout 0 0 23 0 H osd_layout 0 1 30 13 V osd_layout 0 6 23 13 H osd_layout 0 7 20 14 V osd_layout 0 9 1 2 H osd_layout 0 11 13 13 V osd_layout 0 12 18 13 V osd_layout 0 13 24 12 V osd_layout 0 14 8 13 V osd_layout 0 15 18 12 V osd_layout 0 22 17 9 H osd_layout 0 23 30 12 V osd_layout 0 28 30 14 V osd_layout 0 30 9 15 V osd_layout 0 31 8 12 V osd_layout 0 32 24 13 V osd_layout 0 40 8 9 V osd_layout 0 41 8 8 V osd_layout 0 110 8 11 V osd_layout 0 112 8 10 V

logic

global vars

programmable pid controllers

master

set gyro_main_lpf_hz = 25 set dynamic_gyro_notch_q = 250 set dynamic_gyro_notch_min_hz = 30 set gyro_zero_x = 2 set gyro_zero_y = -1 set gyro_zero_z = -4 set ins_gravity_cmss = 980.894 set acc_hardware = ICM42605 set acczero_y = -6 set acczero_z = -2 set accgain_x = 4098 set accgain_z = 4090 set align_mag = CW270FLIP set mag_hardware = NONE set baro_hardware = SPL06 set motor_pwm_protocol = STANDARD set failsafe_procedure = RTH set current_meter_scale = 250 set platform_type = AIRPLANE set model_preview_type = 14 set imu_dcm_ki = 0 set small_angle = 180 set imu_acc_ignore_rate = 7 set imu_acc_ignore_slope = 4 set applied_defaults = 3 set gps_sbas_mode = WAAS set gps_ublox_use_galileo = ON set airmode_type = STICK_CENTER_ONCE set nav_wp_radius = 5000 set nav_rth_allow_landing = FS_ONLY set nav_rth_alt_control_override = ON set nav_rth_altitude = 5000 set nav_fw_control_smoothness = 2 set nav_fw_launch_max_angle = 180 set nav_fw_launch_motor_delay = 0 set nav_fw_launch_timeout = 45000 set nav_fw_launch_climb_angle = 20 set osd_video_system = HD set osd_units = IMPERIAL set osd_time_alarm = 30 set osd_alt_alarm = 9999 set osd_dist_alarm = 0 set osd_crsf_lq_format = TYPE2 set osd_main_voltage_decimals = 2 set tz_automatic_dst = USA

profile

profile 1

set fw_p_pitch = 15 set fw_i_pitch = 15 set fw_d_pitch = 5 set fw_ff_pitch = 97 set fw_p_roll = 15 set fw_i_roll = 10 set fw_d_roll = 7 set fw_ff_roll = 41 set fw_p_yaw = 20 set fw_i_yaw = 0 set fw_ff_yaw = 100 set fw_p_level = 30 set max_angle_inclination_rll = 450 set dterm_lpf_hz = 10 set fw_turn_assist_pitch_gain = 0.400 set nav_fw_pos_z_p = 25 set nav_fw_pos_z_d = 8 set nav_fw_pos_xy_p = 55 set d_boost_min = 1.000 set d_boost_max = 1.000 set fw_level_pitch_trim = -2.156 set rc_expo = 35 set rc_yaw_expo = 30 set roll_rate = 26 set pitch_rate = 13 set yaw_rate = 3 set manual_roll_rate = 65 set manual_pitch_rate = 75

profile

profile 2

profile

profile 3

battery_profile

battery_profile 1

set vbat_min_cell_voltage = 260 set vbat_warning_cell_voltage = 300 set battery_capacity = 3500 set throttle_idle = 5.000 set nav_fw_launch_idle_thr = 1300

battery_profile

battery_profile 2

battery_profile

battery_profile 3

restore original profile selection

profile 1 battery_profile 1

save configuration

save

[MrD-RC]

Known issue being worked on.

[JoeSa3rd]

Glad to hear this. If you need anyone to help test a possible fix, I'd be more than willing to help test.

[maRCnh33]

I use inav6.1.1 (latest version) and i have also that problem. 2 items on the osd disappeared for about 5-10 seconds and then they come back again. The strange thing is that it is only 'ALTITUDE' and 'Flying time'.. so now on inav 6 the issue is still not fixed??? I use also msp display and hdzero in the osd tab. Can someone fix this problem??

[MrD-RC]

INAV is doing everything it can now. It is really up to the HD systems to improve the robustness of the OSD data transmissions.