Arch Linux

bbbart

Member

From: Belgium

Registered: 2016-03-14

Posts: 16

Website

Re: Bluetooth mice latency/sluggish; Fixed by hcitool, permanent options?

Just wanted to pitch in here and report that Stellarator conn_min_interval solution worked for me too with

• kernel 5.2.11-arch1-ARCH

• bluez 5.50-6

• blueman 2.1.1-1

• Logitech MX Ergo

The mouse works smoothly now, whereas before it was barely usable. Thanks a lot!

beanaroo

Member

Registered: 2013-03-05

Posts: 39

Re: Bluetooth mice latency/sluggish; Fixed by hcitool, permanent options?

Thank you, @Stellarator for pointing out the missing stanza! I've added that and my mouse is working smoothly now.

I also want to add that this method resolves latency and intermittent connectivity issues with my bluetooth keyboard too! (Cooler Master SK621) After the update it has been frequently disconnecting during typing, resulting in repeating keys.

Do we know if this is considered a regression of some sorts upstream?

worryag

Member

Registered: 2013-10-08

Posts: 9

Re: Bluetooth mice latency/sluggish; Fixed by hcitool, permanent options?

The problem is being discussed at Bugzilla.Kernel.
In particular, applying the Patch solves my problem.

asasione

Member

Registered: 2019-06-16

Posts: 9

Re: Bluetooth mice latency/sluggish; Fixed by hcitool, permanent options?

Recently I've had issues with my mouse MX Ergo having high latency... you can feel the sluggish movement across the screen.  Using a usb dongle, everything is fine.

I was finally able to resolve by changing the latency, min, max connection intervals with hcitool like so:

export MOUSEHANDLE=`hcitool con  | grep "E1:95:80:B8:2F:31" | awk '{print $5}'`
hcitool lecup --handle $MOUSEHANDLE --min 6 --max 7 --latency 0

I'm currently running this each time the mouse connects, but this seems wrong. 

What is the proper method of configuring the default intervals and latency?  Is it possible to put in a permanent configuration for this device without running a script?

Appreciate any insights.

This issue is fixed for me on latest 5.3.0 kernel, I bought a bluetooth mouse with a USB dongle while waiting this out but finally I can use my wireless bluetooth mouse again