Sometimes, the mouse scrolling speed changes to a very slow rate, where it takes many clicks (3-8 clicks) or significant wheel rotation to scroll the page one step. This started after upgrading to linux kernel 5.0. It has not happened yet after booting back into kernel 4.20.
When it happens, it's usually upon the wireless mouse 'waking up' after having gone into its power saving mode, but it does not happen every time.
Turning the mouse off and on again with its power switch restores normal behavior.
The mouse is a wireless Logitech M720 used with a Unifying receiver. There is also a wireless keyboard, a Logitech k830, paired with the same receiver.
I know kernel 5.0 introduced new high resolution scrolling support. Is this a bug with that feature? Has anyone else experienced this?
Best Answer
One solution is to have solaar running, and make sure that the
Wheel Resolution
setting for the mouse (M720 in my case) isON
in kernel 5.0, which results in normal scrolling behavior. Withsolaar
set to autostart, I have not had the slow scrolling problem since.When this setting is
OFF
it consistently results in the slow scrolling behavior. For whatever reason, withoutsolaar
running in kernel 5.0, the mouse sometimes spontaneously switches to that behavior, though without actually changing the setting.Interestingly, in kernel 4.20 and earlier,
Wheel Resolution
=OFF
resulted in normal scrolling behavior, whileON
provided much faster, more sensitive scrolling.