Bug#992637: Dropped packets/high latency on USB bus when using USB oscilloscope in bullseye
Thanks Diederik, that did the trick! After setting "Runtime PM for PCI
Device Intel Corporation Sunrise Point-LP CSME HECI #1" to "Bad" the
issue went away :) I can just set it to "Bad", but it was running fine
on "Good" on the previous kernels, so I guess there is still some
regression here (and I don't know what this effect will now have on
battery life). How should I proceed, as the bug's nature has now
changed?
On Sat, 2021-08-21 at 18:08 +0200, Diederik de Haas wrote:
> On zaterdag 21 augustus 2021 17:38:51 CEST Kobus van Schoor wrote:
> > Enabling/disabling it however has no effect
>
> It was worth a shot ;-)
>
> > (it was set to "Bad" anyway).
>
> I don't expect much from it, but you could set them all to "Bad". If
> that
> still doesn't make a difference, then you can fully rule out energy
> savings.
> With 'lsusb -t' you can see that a/your device has a parent and it
> may be that
> power savings on a/the parent has an effect.
> I don't expect it to make a difference, but otoh it's easy to try
> out.
Reply to: