Radeon KMS msi issues.

[Neven Klacar]

Thanks, I will give this a try.

~Neven

On Thu, Feb 16, 2012 at 1:57 AM, Michel Dänzer <michel at daenzer.net> wrote:

> On Mit, 2012-02-15 at 23:48 -0800, Neven Klacar wrote:
> > https://bugs.freedesktop.org/show_bug.cgi?id=28106
> >
> > I was investigating the above bug, and for some reason radeon x1400
> > cards that use msi based interrupts, are conflicting in some way with
> > the msi interrupts used by the sound card and wifi chip. Doing
> > anything display intensive will drop the wifi connection and make
> > really choppy sound.
> >
> >
> > How can I disable msi on the radeon driver? Can it be turned off/on
> > via a conf file? I tried echo 0 to msi_bus in /sys/bus/pci/devices/**/
> > but it didnt work.
> >
> > If I have to recompile the source where do I disable it?
>
> See commit a18cee15ed4c8b6a35f96b7b26a46bac32e04bd9 [0]: With current
> kernels (at least as of 3.2), you can disable MSI with radeon.msi=0.
> Otherwise you can modify the radeon_msi_ok function to return false.
>
>
> [0]
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a18cee15ed4c8b6a35f96b7b26a46bac32e04bd9
>
> --
> Earthling Michel Dänzer           |                   http://www.amd.com
> Libre software enthusiast         |          Debian, X and DRI developer
>
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