At Thu, 11 Jun 2009 14:57:52 -0300, Gustavo Vieira wrote: > > Em Sáb, 2009-06-06 às 11:04 +0200, Takashi Iwai escreveu: > > > I'm not sure what interrupt I should be monitoring, but the line > > with > > > "HDA Intel" always stays with 0 interrupts. Also, only timer, i915 > > and > > > rescheduling interrupts are generated. > > > > Hm, but when you play or record something, interrupts must be > > generated, right? > > No. Not at all. Here is the output of /proc/interrupts > > CPU0 CPU1 > 0: 37864 38144 IO-APIC-edge timer > 1: 5 511 IO-APIC-edge i8042 > 8: 7 9 IO-APIC-edge rtc0 > 9: 1048 652 IO-APIC-fasteoi acpi > 12: 51 57 IO-APIC-edge i8042 > 16: 53 80 IO-APIC-fasteoi uhci_hcd:usb3, mmc0, > jmb38x_ms:slot0 > 17: 0 0 IO-APIC-fasteoi uhci_hcd:usb4 > 18: 0 3 IO-APIC-fasteoi ehci_hcd:usb1, > uhci_hcd:usb7 > 20: 30 2628 IO-APIC-fasteoi ehci_hcd:usb2, > uhci_hcd:usb5 > 22: 0 0 IO-APIC-fasteoi uhci_hcd:usb6, HDA Intel > 29: 13017 1545 PCI-MSI-edge ahci > 30: 1 3502 PCI-MSI-edge i915 > 31: 0 2894 PCI-MSI-edge eth0 > NMI: 0 0 Non-maskable interrupts > LOC: 46690 47341 Local timer interrupts > RES: 14957 15044 Rescheduling interrupts > CAL: 73 64 Function call interrupts > TLB: 193 119 TLB shootdowns > TRM: 0 0 Thermal event interrupts > THR: 0 0 Threshold APIC interrupts > SPU: 0 0 Spurious interrupts > ERR: 0 > MIS: 0 > > 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? Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
