18.0.0: Bluetooth error in bt_conn_le_param_update: -128

[iprok]

Hello! When switching between connected devices sometimes (I haven't got exact condition when it happens, but surely not always): I got such messages in the UHK log.

The issue started with firmware 18.0.0. I have 5 devices connected (USB, Dongle, 3 BT). Only 2 (USB+ 1 BT) at the moment of testing.

Bluetooth error in bt_conn_le_param_update: -128Printing trace buffer because: Bluetooth health check
ID: 4, EV: 6291972, Tag: v18.0.0
Uptime: 1106998 ms, Last main: 2 ms ago
Trace:
v3w0w1w6ve3u7u8d3d6d7)I2,2,6,435(d4d5d1<8>d2l6u1u2v3w0w1x1x2x3x4
w2w3w4w5w6ve3u7u8l8d3d6d7)(d4d5d1d2l6u1u2v2v3w0w1x3x4w2w3w4w5w6v
e3u3u6u7u8d3d6d7)O(d4d5d1d2d3d6<F9>d7)(d4d5d1d2l6u1u2v3w0w1w2w3w
4w5w6ve3u7u8d3d6d7)<U9>(d4d5d1d2l6u1u2v3w0w1x1x2x3x4w2w3w4bm4bh1
Connection info:
----------------------

Compiled   peripheral count: 3
Configured peripheral count: 3
Oob pairing in progress: 0
Directed advertising enabled: 0
New connection: 0
----------------------
Bluetooth error in bt_conn_le_param_update: -128Printing trace buffer because: Bluetooth health check
ID: 4, EV: 6291972, Tag: v18.0.0
Uptime: 1128108 ms, Last main: 2 ms ago
Trace:
6d7)<U9>I2,2,6,13790(d4d5d1<8>d2l6u1u2v3w0w1x1x2x3x4w2w3w4w5w6ve
3u7u8l8d3d6d7)(d4d5d1d2l6u1u2v2v3w0w1x3x4w2w3w4w5w6ve3u3u6u7u8d3
d6d7)O(d4d5d1d2d3d6<F9>d7)(d4d5d1d2l6u1u2v3w0w1w2w3w4w5w6ve3u7u8
d3d6d7)<U9><U9><U9><U9>(d4d5d1d2l6u1u2v3w0w1x1x2x3x4w2w3w4bm4bh1
Connection info:
----------------------
Compiled   peripheral count: 3
Configured peripheral count: 3
Oob pairing in progress: 0
Directed advertising enabled: 0
New connection: 0
----------------------

[pcooke9]

I'm getting similar messages.

FW v18.0.1-db8e819 master branch
Agent v10.1.0-5088d9d master branch
Happens with or without bridge cable

Seems to only happen when switching from BLE to USB Actually, I was mistaken:

• It does not happen when switching away from USB to dongles/BLE hosts.
• It does happen when switching away from any dongles/BLE hosts to any another host (including USB).
• AFAICT, it only happens with both set bluetooth.keepConnectionsAlive false and set bluetooth.alwaysAdvertise false. (Seems pretty consistent when these options are set to false.)

When switching from BLE (phone) → USB (PC):

Bluetooth error in bt_conn_le_param_update: -128Printing trace buffer because: Bluetooth health check
ID: 4, EV: 512, Tag: db8e819
Uptime: 853054 ms, Last main: 2 ms ago
Trace:
6d7)(d4d5d1d2l6u1u2v3w0w1w2w3w4w5x3x4w2w3w4w5w6ve3u7u8d3d6d7)(d4
d5d1d2d3d6<F4>d7)<U9>(d4d5d1d2d3d6<F33>d7)(d4d5d1d2d3d6d7)(d4d5d
1d2d3d6<F9>d7)(d4d5d1d2l6u1u2v3w0w1w2w3w4w5w2w3w4w5w6ve3u7u8d3d6
d7)I2,2,6,86(d4d5d1<8>d2l6u1u2v3w0w1w2w3w4w5x1x2x3x4w2w3w4bm4bh1
Connection info:
----------------------
Compiled   peripheral count: 3
Configured peripheral count: 3
Oob pairing in progress: 0
Directed advertising enabled: 0
New connection: 0
----------------------