RE: Many reports of laptops getting hot while suspended with kernels >= 5.16.10 || >= 5.17-rc1

["Limonciello, Mario" <Mario.Limonciello@amd.com>]

[Public]


> > Hans,
> >
> > Do you think you could get one of the folks who reported this regression to
> do
> > a bisect to see which one "fixed" it?
> 
> We already know which commit is causing the regression. As Rafael already
> said the question is why things are not broken in 5.17 and that is not
> a straight forward bisect. So figuring this out is going to be a lot
> of work and I'm not sure of that it is worth it. I certainly don't
> have time to help users with debugging this.
> 
> > If we get lucky we can come down to
> > some smaller hunks of code that can come back to stable instead of
> reverting.
> 
> 5.17 is almost done and in a couple of weeks Fedora (and Arch and other
> distros tracking the mainline kernel) will move to 5.17 resolving the
> wakeup by keyboard issue not working there.
> 
> 5.16 is not a LTS kernel, so for other distros we would at a minimum
> figure out what needs to be backported to make things work with 5.15
> making the delta / set of possible patches we need even bigger.
> So as already said IMHO this is not worth it, at least assuming that
> nothing bad happens when attempting wakeup by keyboard, iow it
> just does not work and does not put the laptop in some bad state?
> 
> Regards,
> 
> Hans

You're right, no bad state as a result and probably not worth the tradeoff for a bisect effort.
OK, thanks.