On Wed, 20 Nov 2019 at 17:41, Roger Heflin <rogerheflin@xxxxxxxxx> wrote:
I am seeing it occurring on the new kernels on f30, so the kernel does
seem what is doing it.
xhci has a bug affecting many USB devices across many hardware
configurations and kernels 4.20 and later.
https://bugzilla.kernel.org/show_bug.cgi?id=202541#c49 is one comment (out of
more than 100) with USB mouse and keyboard getting reset after the
"
disabled by hub (EMI?), re-enabling..." message.
The majority of reports are for WiFi devices. I've often seen keyboard briefly
stop responding and lights flash but never bothered to investigate. WiFi, like the
OP's trackball, needs some configuration after a reset, so raises a slightly annoying
bug for some devices to something serious for others. All this suggests
something common to multiple usb drivers that changed between 4.19 and 4.20.
I was figuring another new laptop was in my future.
New hardware, especially laptops, just introduces hardware that requires
new, unproven, drivers. I've had the best luck with 2-3 years old laptops.
On Tue, Nov 19, 2019 at 10:23 PM ToddAndMargo via users
<users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> On 11/19/19 4:50 PM, Tom Horsley wrote:
> > On Tue, 19 Nov 2019 16:38:33 -0800
> > ToddAndMargo via users wrote:
> >
> >> Also, have you tried other mice/keyboards from
> >> other manufacturer? I would be really suspicious
> >> of your peripheral hardware at this point.
> >
> > I've used these for years, and this only started happening
> > when fedora 31 was installed on both systems. Hardware
> > seems really unlikely to me.
>
> Dig into the archives and make yourself a Fedora 30 Live
> USB stick. See if the problem reoccurs.
>
>
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