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SubjectRe: [PATCH] ALSA: hda-intel - Disable MSI support by default
Date
On Wednesday 15 November 2006 22:10, Mws wrote:
> On Wednesday 15 November 2006 21:14, Linus Torvalds wrote:
> >
> > On Wed, 15 Nov 2006, Mws wrote:
> > >
> > > after some small discussions on alsa-user ml i recognised this
> > > thread today.
> > > i thought my problem could also exist on this msi stuff.
> > > i disabled msi in kernel config, reboot, and, after starting x & kde
> > > i got immediately a freeze.
> > > last and maybe important last try has been to
> > > enable msi support _but_ boot kernel with cmdline pci=nomsi
> > > this finally did work out. i got a working sound environment again.
> >
> > I expect that you have the exact same issue as Olivier: the "hang" is
> > probably because you started using the sound device (beeping on the
> > console is handled by the old built-in speaker, but in X a single beep
> > tends to be due to sound device drivers), and because of sound irq
> > misrouting you had some other device (like your harddisk) that got their
> > irq disabled due to the "nobody cared" issue.
> >
> > > i find it a bit abnormal that the disabling msi in kernel config behaviour
> > > is different from kernel cmdline pci=nomsi option.
> >
> > Now, that does actually worry me. It _should_ have worked with CONFIG_MSI
> > disabled. I wonder if some of the MSI workarounds actually broke the HDA
> > driver subtly.
> >
> > Anyway, it would be a good idea to test the current -git tree if you can,
> > both with CONFIG_MSI and without (and _without_ any "pci=nomsi" kernel
> > command line). It should hopefully work, exactly because the HDA driver
> > now shouldn't even try to do any MSI stuff by default.
> >
> > Knock wood.
> >
> > Linus
> hi,
>
> linus, just cloned current git, but will test it tomorrow morning.
>
> will inform you on the results.
>
> thanks
> marcel

hi,

i just tried the git that i cloned yesterday, when you asked me to, linus.

i don't get any freezes and sound is fine.
no cmdline option pci=nomsi and msi enabled in .config

thanks for your help.

best regards
marcel
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