On Sat, 17 Jun 2006 19:41:30 -0700 Chris Wedgwood wrote: > On Sat, Jun 17, 2006 at 09:29:56PM +1000, Con Kolivas wrote: > > > > > 1) PCI-VIA-quirk-fixup-additional-PCI-IDs.patch > > that shouldn't break things, if it does I *really* want to know > > > > > 2) > > PCI-quirk-VIA-IRQ-fixup-should-only-run-for-VIA-southbridges.patch > > nor should that, so again i would like to know if this is the one that > makes a difference > > > > Works like a charm. End of the sound skips. > > what cpu/mainboard/etc Here I have ASUS A8V Deluxe (VIA K8T800Pro + VT8237), and cannot reproduce the problem in a "normal" way (even when booting with "acpi=off noapic"), but I have some evidence that a problem really exists. VT8237 contains this AC97 controller: 0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60) Subsystem: ASUSTeK Computer Inc. A8V Deluxe motherboard (Realtek ALC850 codec) Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin C routed to IRQ 5 Region 0: I/O ports at d800 Capabilities: [c0] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00: 06 11 59 30 01 00 10 02 60 00 01 04 00 00 00 00 10: 01 d8 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 2a 81 30: 00 00 00 00 c0 00 00 00 00 00 00 00 05 03 00 00 40: 01 cc 00 00 10 00 00 00 00 00 00 00 00 00 00 00 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 01 00 02 06 00 00 00 00 00 00 00 00 00 00 00 00 d0: 01 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 The device ID is 1106:3059 - it is not included in the list for quirk_via_irq(). However, I have tried to boot with "noapic", and by trying to change the INTERRUPT_LINE register with setpci have confirmed that this register is used to set up interrupt routing. In APIC mode this register has no effect on VT8237. We may just add 1106:3059 to the list of PCI IDs which need quirk_via_irq(). However, is this really a proper solution? What exactly was broken with the original quirk code, which was applied to all VIA devices - just a wrong printk, or some real breakage?
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- References:
- sound skips on 2.6.16.17
- From: Con Kolivas <[email protected]>
- Re: sound skips on 2.6.16.17
- From: Chris Wedgwood <[email protected]>
- sound skips on 2.6.16.17
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