On Tue, 14 Nov 2006 21:40:33 -0500 Jeff Garzik wrote:
> Linus Torvalds wrote:
> >
> > On Tue, 14 Nov 2006, Jeff Garzik wrote:
> >> :( Like AHCI, PCI MSI has -always- worked wonderfully for HD audio AFAIK.
> >
> > That "AFAIK" is shorthand for "As Far As I haven't read any of the
> > bug-reports but Know", right?
>
> None of the bug reports indicate Intel, thus following the well
> established pattern of "it works great on Intel, but not elsewhere"
>
>
> >> Is a whitelist patch forthcoming?
> >
> > Probably not. The advantages of MSI aren't all that obvious, and the
> > disadvantages seem to be that it just doesn't work all that well for some
> > people.
> >
> > The fact that it works for MOST people has absolutely zero relevance.
> > We've had too many frigging patches that have apparently been of the "this
> > works for me, I don't care if some other motherboard has problems" kind.
> >
> > See for example:
> >
> > http://lkml.org/lkml/2006/10/7/164
> >
> > and yes, that HDA MSI _does_ seem to be causing problems.
>
> But not on Intel, hence the obvious whitelist question.
>
>
> > So don't blather about "MSI never causes problems". It's broken. Please
> > stop living in denial.
> >
> > When somebody can actually say what the huge advantages to MSI are that
> > it's worth using when
> >
> > (a) several motherboards are apparently known broken
>
> several non-Intel motherboards
>
>
> > (b) microsoft apparently is of the same opinion and _also_ doesn't use it
>
> Yeah well, that's sage advice only when it's sage advice. MS lags us by
> years. We do some bleeding, on the bleeding edge.
>
>
> > (c) the old non-MSI code works fine
> >
> > (d) there is apparently no fool-proof way to tell when it works and when
> > it doesn't.
> >
> > then please holler. Btw, I'm not even _interested_ in any advantages
> > unless you also have a solution for (d). Not a "it should work". I want to
> > hear something that is _guaranteed_ to work.
>
> if (intel) ...
>
> That has a track record of working.
>
> It's nice not to have to deal with shared interrupts.
FWIW, I concur with it always working for me on my Intel motherboard and
Intel-based Lenovo ThinkPad for hdaudio, ethernet, and SATA/AHCI.
---
~Randy
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