Messages in this thread | | | From | Shawn Starr <> | Subject | Re: 2.5.xx ACPI/Sb16 IRQ conflict | Date | Mon, 17 Feb 2003 09:06:33 -0500 |
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I can confirm this with 2.5.61 and my SB16AWE card. There seems to be a bug when PCI interrupts are set by ACPI on a IBM 300PL 6892-N2U.
Also, the IBM BIOS's PnP for OS is enabled.
When the PnP BIOS is disabled and pci=noacpi is NOT used. There are no conflicts. When PnP BIOS is enabled and we don't set pci=noacpi we get conflicts with IRQs.
We might need a workaround or is this a bug in IBM's ACPI implimentation?
Shawn.
>List: linux-kernel >Subject: 2.5.42 ACPI/Sb16 IRQ conflict From: Simone Piunno <pioppo () ferrara ! linux ! it> >Date: 2002-10-16 20:29:08
>Hi,
>I'm trying 2.5.42 compiled with ACPI and OSS ISA-Pnp Soundblaster 16. >When playing audio, the sound is heavily chopped. >dmesg says:
>ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] >isapnp: Scanning for PnP cards... >isapnp: SB audio device quirk - increasing port range >isapnp: Card 'Creative SB16 PnP' >isapnp: 1 Plug & Play card detected total >ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10 >ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 5 >[-cut-] >Soundblaster audio driver Copyright (C) by Hannu Savolainen 1993-1996 >sb: Creative SB16 PnP detected >sb: ISAPnP reports 'Creative SB16 PnP' at i/o 0x220, irq 5, dma 1, 5 >SB 4.13 detected OK (220) >sb: Interrupt test on IRQ5 failed - Probable IRQ conflict >Sound Blaster 16 (4.13)> at 0x220 irq 5 dma 1,5 ><Sound Blaster 16> at 0x330 irq 5 dma 0,0 >sb: 1 Soundblaster PnP card(s) found.
>Motherboard is Asus P5A. >Audio is compiled as a module >isapnp and ACPI are statically linked
>With ALSA was even worse (no output at all).
>After appending "pci=noapci" into lilo.conf, now OSS happily works >again without problems. I haven't tried yet if ALSA too benefits >from pci=noapci.
>Feel free to contact me if you need more info.
>Regards, >Simone
-- Shawn Starr UNIX Systems Administrator, Operations Datawire Communication Networks Inc. 10 Carlson Court, Suite 300 Toronto, ON, M9W 6L2 T: 416-213-2001 ext 179 F: 416-213-2008 shawn.starr@datawire.net "The power to Transact" - http://www.datawire.net
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