I got around to checking if my LQ/RSSI value in the OSD works and I observed the OSD shows either 99 if I have 100% strength, or 0 if I have <100% strength.
I have RSSI_TYPE=2. CRSF RX is set to output LQ on channel 6 and I can see the PWM value track in the radio tab.
It’s easy to reproduce this by adjusting the RSSI_CHAN_HIGH to be below or above the output value.
I’m running the firmware from #18689 so it’s at least up to 4.1-RC2
I don’t reproduce this with an earlier test build I had flashed on my other quad. I can’t recall what was the branch it was built (maybe this is a copter 4.1 vs master difference). I’ll wait for the next RC release of 4.1 that picks up PR18689 or do some regression search later…