Comment # 47 on bug 1185513 from Anthony Agelastos

(In reply to Anthony Agelastos from comment #46)
> (In reply to Joey Lee from comment #45)
> > Hi Anthony and anyone's system has the same symptom:
> > 
> > I have reverted the 719e1f561afbe patch and built a kernel rpm in my home
> > branch on OBS. Could you please try it?
> > 
> > https://build.opensuse.org/package/binaries/home:joeyli:branches:openSUSE:
> > Factory:bsc1185513/kernel-default/standard
> > 
> > Please install this kernel rpm but still keep the old kernel in case there
> > have any unknown problem.
> > 
> > And, please note that this is not a real solution. I will raise this issue
> > on upstream after we confirmed that the 719e1f561afbe patch is root cause.
> > Reverting 719e1f561afbe patch will cause that we may lost some USB4
> > functions.
> > 
> > On the other hand, kernel upstream may treats this problem as a firmware
> > issue. We didn't see this ACPI error message that's because v5.11 kernel
> > doesn't follow ACPI spec's recommended behavior.
> 
> Hello Joey:
> 
> Thank you for your help with this. I'm glad you were able to drill down to
> the root cause. Could you (or anyone familiar with this) walk me through the
> steps for how to install your kernel to test and then to revert the changes
> afterwards? One method could be manual whilst another could leverage Snapper
> and do it through snapshots. I am new enough to openSUSE that I don't have
> enough experience with either of those methods to know precisely how to. So,
> any guidance would be appreciated. Thank you for your help with this. 
> 
> Kind regards,
> Anthony

Hello Joey:

Also, do you have an idea as to what functionality is impacted with these
errors I'm getting? If upstream decides it's a bug in my firmware and that they
don't want to change anything, then I need to start evaluating my options. One
option is that I can update my firmware to see if that fixes the problem (but I
updated firmware on a laptop before and afterwards Linux was unable to access
the hard drive thanks to changes in firmware which I could not roll back so I
am very hesitant to update firmware in general). However, if these ACPI errors
aren't really impacting anything (i.e., if they're cosmetic), then I can also
just ignore them. So, any guidance you have regarding what is not working would
help me make this decision (assuming the upstream doesn't address this issue...
if they do address the issue then this is moot). Thank you for any
clarification you can provide here.

Kind regards,
Anthony

Kind regards,
Anthony