Hi, > 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 > Weird indeed. Actually I had already reported this behaviour, see http://article.gmane.org/gmane.linux.alsa.devel/59809 So far I have not been able to get the interrupts at IRQ22. They still occur at IRQ20. However the problem is hidden when using boot options irqpoll or noapic. This is not a hardware or bios problem, as the sound is correct on Windows. Initially I was using kernel 2.6.27 and alsa-driver 1.0.19, currently using kernel 2.6.29 and alsa-driver 1.0.20 with the same behaviour. I have tried numerous modprobe options. Currently I am using : alias snd-card-0 snd-hda-intel options sound slots=snd-hda-intel options snd-hda-intel model=hp-m4 enable_msi=1 bdl_pos_adj=32 probe_mask=0x1ff As Gustavo seems to have succeeded, can he post kernel and alsa-driver versions, boot parameters and modprobe parameters ? Thanks in advance Jean-Pierre _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
