Bluetooth Mouse Lag - gkgkgk1215/else GitHub Wiki

sudo apt-get install blueman bluez-utils bluez bluetooth
sudo /etc/init.d/bluetooth restart

Assume that no connections are made/paired/stored in /var/lib/bluetooth
Temporarily remove all hacks/whatever described in this thread.
Reboot
Your /sys/kernel/debug/bluetooth/hci0/conn_* parameters should (be restored to) look like (at the time of writing this [Linux 16.04.6]):

conn_latency: 0
conn_max_interval: 40
conn_min_interval: 24

Command the following line to modify minimal inverval # echo 6 > /sys/kernel/debug/bluetooth/hci0/conn_min_interval
Pair/Trust/Connect as usual
That's it!
Now look in /var/lib/bluetooth/XX:XX:XX:XX:XX:XX/ZZ:ZZ:ZZ:ZZ:ZZ:ZZ/info file. It should contain interesting section:

...
[ConnectionParameters]
MinInterval=6
MaxInterval=9
Latency=44
Timeout=216
...