On 9/17/20 2:54 PM, George N. White III wrote:
On Wed, 16 Sep 2020 at 13:29, Jerome Lille <jerome.lille@ownbay.net> wrote:
Hi

I've noticed in system log the following message popping up from time
to time.

gnome-shell[4119]: libinput error: event5  - Kingsis mouse: client bug:
event processing lagging behind by 21ms, your system is too slow

From my somewhat old Microsoft Wheel Mouse Optical 1.1A USB connected
via an older hub:

gnome-shell[11094]: libinput error: event7  - Microsoft Microsoft 3-Button Mouse with IntelliEye(TM): client bug: event processing lagging behind by 28ms, your system is too slow
 

What should I do about? What is the actual problem? Is my mouse too old
and needs to be replaced? It is not a bluetooth mouse, but one with a
tail.

It is a feature:
https://www.phoronix.com/scan.php?page=news_item&px=Libinput-1.16-RC 

One comment blames lagging response on too many messages informing you your system is lagging.
FWIW, libinput 1.16 (FC32) I get the same messages with my 10 year old MS Bluetooth Notebook Mouse 5000

--
George N. White III


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