At Fri, 12 Jun 2009 15:01:09 -0300, Gustavo Maciel Dias Vieira wrote:
Em Qui, 2009-06-11 às 21:27 +0200, Takashi Iwai escreveu:
Interrupt 22 stays always with 0. Even when correctly playing
sounds. I
tested this on another machine with HD-Audio, and the equivalent interrupt increased when playing. Also, in this other system
interrupt 0
(timer) is hardly issued, but in this laptop it is firing all the
time.
How can the driver be working without interrupts?
That's weird.
Did you try enable_msi=1 module option, BTW?
Just tried now. The interrupts started flowing and, tada, jack sense works!
Thanks, Takashi, that solves it for me. Is there a way to automate this in the driver for the other less technically inclined users?
Well, as I mentioned, it's basically a bug in the lower layer like ACPI or BIOS. So, the best is to fix them. Using MSI is a kind of workaround, and I'm wondering whether this is specific to your device or in general with other HP dv4, since I didn't hear of the similar bug reports.
Takashi