On Sun, Mar 05, 2023 at 08:53:00AM +0100, Alexandre Ratchov wrote: > If you've an azalia(4) attaching as "AMD 17h/1xh HD Audio", please > test this diff and report regressions. Especially audio lock ups that > require reboot. > > IIRC, MSI was disabled few years ago to "fix" such lockups, and now > this diff suggests we need MSI on certain boards. > > Context and diff below: > > ----- Forwarded message from Andreas Bartelt <o...@bartula.de> ----- > > Date: Sat, 4 Mar 2023 16:12:22 +0100 > From: Andreas Bartelt <o...@bartula.de> > To: Alexandre Ratchov <a...@caoua.org>, b...@openbsd.org > Subject: Re: audio(4) output doesn't work yet on ASUS ProArt X670E-CREATOR > WIFI mainboard (ALC1220 > CODEC) > User-Agent: Mozilla/5.0 (X11; OpenBSD amd64; rv:102.0) Gecko/20100101 > Thunderbird/102.8.0 > > On 2/27/23 6:41 PM, Andreas Bartelt wrote: > > On 2/27/23 2:40 PM, Alexandre Ratchov wrote: > > > On Sat, Feb 25, 2023 at 05:20:53PM +0100, Andreas Bartelt wrote: > > > > Hi, > > > > > > > > I've tested a recent OpenBSD snapshot of CURRENT on an ASUS ProArt > > > > X670E-CREATOR WIFI mainboard. According to the information > > > > provided by ASUS, > > > > this mainboard features a "Realtek S1220A CODEC" which attaches as > > > > Realtek > > > > ALC1220 on OpenBSD -- however, audio output (tested with > > > > headphones on the > > > > line out connector) doesn't work there yet. Applications (e.g., mplayer, > > > > mpg123) hang and I can hear no sound. > > > > > > > > [I don't know if this helps but I previously also had access to an > > > > ASUS ROG > > > > STRIX B550-E GAMING mainboard which, according to ASUS, also features an > > > > S1220A CODEC which also attaches as Realtek ALC1220 on OpenBSD -- audio > > > > output (tested on the line out connector) works there without problems.] > > > > > > > > In order to verify that the new mainboard doesn't have a physical defect > > > > with regard to the line out audio connector, I've also tested a > > > > FreeBSD 13.2 > > > > BETA3 snapshot on the ASUS ProArt X670E-CREATOR WIFI mainboard. > > > > Audio output > > > > worked there out-of-the-box, so this might be a fixable problem on > > > > OpenBSD. > > > > > > > > I've found some info with regard to audio debugging at > > > > https://www.openbsd.org/faq/faq13.html#audioprob . While running > > > > # cat > /dev/audio0 < /dev/zero > > > > play.bytes doesn't increase at all: > > > > # audioctl play.{bytes,errors} > > > > play.bytes=0 > > > > play.errors=0 > > > > > > > > > > mixerctl shows that the host manages communicate with the codec, but > > > above lines suggest that DMA doesn't start. Could you check if there > > > are any audio-related options in the BIOS? Especially, if there's an > > > option to disable the microphone (or "recording" or alike), please > > > enable it. > > > > There's no microphone or recording specific options available. I could > > only identify a single audio related configuration option. Under > > Advanced\Onboard Devices Configuration: enable/disable "HD Audio > > Controller" (description says Enable/Disable Azalia HD Audio). It does > > exactly that, i.e., disabling this option removes the azalia1 device from > > OpenBSD's dmesg. > > > > With this option enabled again, mp3 playback works with FreeBSD but hangs > > with OpenBSD -- same BIOS config. > > > > I've made audio work on the ASUS ProArt X670E-CREATOR WIFI mainboard, simply > by enabling msi. > > azalia1 at pci21 dev 0 function 6 "AMD 17h/1xh HD Audio" rev 0x00: msi > azalia1: codecs: Realtek ALC1220 > audio0 at azalia1 > > The following diff fixes the problem: > Index: src/sys/dev/pci/azalia.c > =================================================================== > RCS file: /cvs/src/sys/dev/pci/azalia.c,v > retrieving revision 1.283 > diff -u -p -r1.283 azalia.c > --- src/sys/dev/pci/azalia.c 21 Feb 2023 13:42:59 -0000 1.283 > +++ src/sys/dev/pci/azalia.c 4 Mar 2023 15:02:31 -0000 > @@ -554,7 +554,6 @@ azalia_pci_attach(struct device *parent, > if (PCI_VENDOR(sc->pciid) == PCI_VENDOR_AMD) { > switch (PCI_PRODUCT(sc->pciid)) { > case PCI_PRODUCT_AMD_17_HDA: > - case PCI_PRODUCT_AMD_17_1X_HDA: > case PCI_PRODUCT_AMD_HUDSON2_HDA: > pa->pa_flags &= ~PCI_FLAGS_MSI_ENABLED; > } > > OK? > > > ----- End forwarded message -----
No, this workaround is still needed. thfr@ and I tried to debug this years ago but could not determine the cause at the time. This audio hang is still there on many systems, e.g: playback works for a breif time until the it hangs, and only a reboot will fix it. But we could never reproduce it with MSI disabled, so that was the best option we had. -Bryan.
