Torstein and list; Sorry about the delay with this, life and the garden and what-not kind of caught up with me over the last few days... On Sat, Mar 9, 2013 at 12:35 PM, Torstein Hegge <hegge@xxxxxxxxxxx> wrote: [last experiment's evidence deleted] > > According to lsusb -v from > https://gist.github.com/storrgie/2897496 > the initialization goes through iface 1-5 which are > > 2: SPDIF Output > 3: Microphone In > 4: Line In > 5: SPDIF Input > > and when it gets to SPDIF Input altsetting 2, uac_clock_source_is_valid() fails. > > Other CM6631-devices doesn't expose iface 2-5. These extra exposed interfaces > only observable difference between the Schiit and other devices. [more evidence from last experiment deleted] > If the attempts at modifying the rate of the SPDIF output from the > CM6631 interferes with the intended operation, that might explain why > the Schiit Bifrost still has issues with the workaround applied, while > the Corda Daccord and Asus Xonar Essence One works fine. > > The theory doesn't fit that well with your previous experience where the > problem first occurred long after plugging in the device, but it should be > easy to test by ignoring the extra interfaces exposed by the Schiit: > > diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h > index 64d25a7..f2fcc78 100644 > --- a/sound/usb/quirks-table.h > +++ b/sound/usb/quirks-table.h > @@ -3238,4 +3238,42 @@ YAMAHA_DEVICE(0x7010, "UB99"), > } > }, > > +/* Schiit USB Interface */ > +{ > + USB_DEVICE(0x0d8c, 0x0304), > + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { > + .ifnum = QUIRK_ANY_INTERFACE, > + .type = QUIRK_COMPOSITE, > + .data = & (const struct snd_usb_audio_quirk[]) { > + { > + .ifnum = 0, > + .type = QUIRK_AUDIO_STANDARD_INTERFACE > + }, > + { > + .ifnum = 1, > + .type = QUIRK_AUDIO_STANDARD_INTERFACE > + }, > + { > + .ifnum = 2, > + .type = QUIRK_IGNORE_INTERFACE > + }, > + { > + .ifnum = 3, > + .type = QUIRK_IGNORE_INTERFACE > + }, > + { > + .ifnum = 4, > + .type = QUIRK_IGNORE_INTERFACE > + }, > + { > + .ifnum = 5, > + .type = QUIRK_IGNORE_INTERFACE > + }, > + { > + .ifnum = -1 > + } > + } > + } > +}, > + > #undef USB_DEVICE_VENDOR_SPEC So here is what I did. First, I got the latest Ubuntu Raring kernel sources 3.8.0.11 Then I applied the two patches to clock.c (the fix, and the debugging output). Note that once again I had to hand-patch the debugging patch. I should probably figure out what's wrong but one problem at a time Then I applied the patch above to quirks-table.h Then I built the kernel, installed it and rebooted. Then I did a tail -f /var/log/kern.log and started my experiment. I've annotated the log file as I went by typing stuff into the terminal and occasionally cutting and pasting. As you will see below mid-way through I decided to try disabling pulse audio, and was not able to make the Schiit misbehave after that point. Prior to that, on the 5th play, I obsreved a problem, again as you will see below. This seems pretty inconclusive to me. clh@temuko:~$ tail -f /var/log/kern.log Mar 12 06:53:34 temuko kernel: [ 22.296617] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready Mar 12 06:53:39 temuko kernel: [ 27.261776] wlan0: authenticate with 20:76:00:0d:dd:00 Mar 12 06:53:39 temuko kernel: [ 27.265983] wlan0: capabilities/regulatory prevented using AP HT/VHT configuration, downgraded Mar 12 06:53:39 temuko kernel: [ 27.266199] wlan0: send auth to 20:76:00:0d:dd:00 (try 1/3) Mar 12 06:53:39 temuko kernel: [ 27.267707] wlan0: authenticated Mar 12 06:53:39 temuko kernel: [ 27.268070] ath5k 0000:02:02.0 wlan0: disabling HT/VHT due to WEP/TKIP use Mar 12 06:53:39 temuko kernel: [ 27.272045] wlan0: associate with 20:76:00:0d:dd:00 (try 1/3) Mar 12 06:53:39 temuko kernel: [ 27.274162] wlan0: RX AssocResp from 20:76:00:0d:dd:00 (capab=0x411 status=0 aid=1) Mar 12 06:53:39 temuko kernel: [ 27.274497] wlan0: associated Mar 12 06:53:39 temuko kernel: [ 27.274561] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready (plugging in the Schiit usb) Mar 12 07:13:34 temuko kernel: [ 1221.640038] usb 1-3: new high-speed USB device number 2 using ehci-pci Mar 12 07:13:34 temuko kernel: [ 1221.797930] usb 1-3: config 1 interface 8 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 64 Mar 12 07:13:34 temuko kernel: [ 1221.797943] usb 1-3: config 1 interface 8 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 64 Mar 12 07:13:34 temuko kernel: [ 1221.800460] usb 1-3: New USB device found, idVendor=0d8c, idProduct=0304 Mar 12 07:13:34 temuko kernel: [ 1221.800473] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Mar 12 07:13:34 temuko kernel: [ 1221.800483] usb 1-3: Product: Schiit USB Interface Mar 12 07:13:34 temuko kernel: [ 1221.800492] usb 1-3: Manufacturer: CMEDIA Mar 12 07:13:35 temuko kernel: [ 1222.498545] 2:1: resetting device after change 48000 -> 192000 Mar 12 07:13:35 temuko kernel: [ 1222.505601] 2:1:2: cannot set freq 192000 (v2) Mar 12 07:13:35 temuko kernel: [ 1222.512659] usbcore: registered new interface driver usbhid Mar 12 07:13:35 temuko kernel: [ 1222.512669] usbhid: USB HID core driver Mar 12 07:13:35 temuko kernel: [ 1222.531972] usbcore: registered new interface driver snd-usb-audio Mar 12 07:13:35 temuko kernel: [ 1222.621073] input: CMEDIA Schiit USB Interface as /devices/pci0000:00/0000:00:13.2/usb1/1-3/1-3:1.6/input/input7 Mar 12 07:13:35 temuko kernel: [ 1222.625014] hid-generic 0003:0D8C:0304.0001: input,hidraw0: USB HID v1.00 Device [CMEDIA Schiit USB Interface] on usb-0000:00:13.2-3/input6 Mar 12 07:13:35 temuko kernel: [ 1222.740530] 2:1: resetting device after change 192000 -> 44100 (the Schiit is plugged in; getting the lsusb -v) (playing the 44.1/16 with aplayMar 12 07:16:50 temuko kernel: [ 1418.008475] ath5k: ath5k_hw_get_isr: ISR: 0x00000080 IMR: 0x00000000 ) (note there is only one subdevice on the Schiit now) (sudo aplay -l gives) clh@temuko:~/WavTest$ sudo aplay -l **** List of PLAYBACK Hardware Devices **** card 0: IXP [ATI IXP], device 0: ATI IXP AC97 [ATI IXP AC97] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Modem [ATI IXP Modem], device 0: ATI IXP MC97 [ATI IXP MC97] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: Interface [Schiit USB Interface], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 clh@temuko:~/WavTest$ (anyway back to kern.log) (44.1/16 is playing now, sounds fine. stopping, and starting 96/24) Mar 12 07:20:26 temuko kernel: [ 1633.717574] 2:1: resetting device after change 44100 -> 96000 (96/24 is playing now, sounds fine. stopping, and starting 44.1/16) Mar 12 07:21:08 temuko kernel: [ 1675.403147] 2:1: resetting device after change 96000 -> 44100 (44.1/16 sounds fine. back to 96/24) Mar 12 07:21:36 temuko kernel: [ 1703.531565] 2:1: resetting device after change 44100 -> 96000 (96/24 sounds fine. going to play both in same aplay session...) Mar 12 07:22:33 temuko kernel: [ 1760.565034] current rate 96000 is different from the runtime rate 44100 (ah 44.1/16 sounds weird now! alvin & chipmunks through fuzzbox weird) (here is output from the aplay session) clh@temuko:~/WavTest$ sudo aplay -vD plughw:CARD=Interface,DEV=0 06* 2L* Playing WAVE '06_-_Amadou & Mariam_-_Artistiya.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Plug PCM: Hardware PCM card 2 'Schiit USB Interface' device 0 subdevice 0 Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 22050 period_size : 5513 period_time : 125011 tstamp_mode : NONE period_step : 1 avail_min : 5513 period_event : 0 start_threshold : 22050 stop_threshold : 22050 silence_threshold: 0 silence_size : 0 boundary : 1445068800 appl_ptr : 0 hw_ptr : 0 ^CAborted by signal Interrupt... clh@temuko:~/WavTest$ (I don't see anything obviously wrong in the above. Playing 44.1/16 again) Mar 12 07:24:43 temuko kernel: [ 1890.887441] 2:1: resetting device after change 96000 -> 44100 (sounds ok this time, here is the aplay outut this time) clh@temuko:~/WavTest$ sudo aplay -vD plughw:CARD=Interface,DEV=0 06* 2L* Playing WAVE '06_-_Amadou & Mariam_-_Artistiya.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Plug PCM: Hardware PCM card 2 'Schiit USB Interface' device 0 subdevice 0 Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 22050 period_size : 5513 period_time : 125011 tstamp_mode : NONE period_step : 1 avail_min : 5513 period_event : 0 start_threshold : 22050 stop_threshold : 22050 silence_threshold: 0 silence_size : 0 boundary : 1445068800 appl_ptr : 0 hw_ptr : 0 ^CAborted by signal Interrupt... clh@temuko:~/WavTest$ (turned pulse daemon off, in case weird interactions; trying to get misbehaviour again) Mar 12 07:28:51 temuko kernel: [ 2138.653480] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:29:04 temuko kernel: [ 2151.551293] 2:1: resetting device after change 96000 -> 44100 Mar 12 07:29:08 temuko kernel: [ 2156.253409] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:29:19 temuko kernel: [ 2166.831417] 2:1: resetting device after change 96000 -> 44100 Mar 12 07:29:29 temuko kernel: [ 2177.257902] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:29:45 temuko kernel: [ 2192.416641] 2:1: resetting device after change 96000 -> 44100 (above is playing both starting with 44.1/16, transitioning now to 96/24) Mar 12 07:32:56 temuko kernel: [ 2384.204363] 2:1: resetting device after change 44100 -> 96000 (ok that worked. trying gmusicbrowser...) Mar 12 07:35:02 temuko kernel: [ 2509.853547] 2:1: resetting device after change 96000 -> 44100 Mar 12 07:35:26 temuko kernel: [ 2533.492142] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:35:33 temuko kernel: [ 2540.483191] 2:1: resetting device after change 96000 -> 44100 Mar 12 07:35:43 temuko kernel: [ 2550.692427] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:36:11 temuko kernel: [ 2578.524177] 2:1: resetting device after change 96000 -> 44100 Mar 12 07:36:16 temuko kernel: [ 2584.310190] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:36:43 temuko kernel: [ 2610.696514] 2:1: resetting device after change 96000 -> 44100 Mar 12 07:37:12 temuko kernel: [ 2639.837835] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:37:21 temuko kernel: [ 2649.198426] 2:1: resetting device after change 96000 -> 44100 Mar 12 07:37:30 temuko kernel: [ 2658.369623] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:37:53 temuko kernel: [ 2681.026230] 2:1: resetting device after change 96000 -> 44100 Mar 12 07:38:11 temuko kernel: [ 2699.235112] 2:1: resetting device after change 44100 -> 96000 Mar 12 07:38:59 temuko kernel: [ 2746.979980] 2:1: resetting device after change 96000 -> 44100 (well all of that seemed to work ok, both jumping from one track to the next and letting the player handle the transition) ^C clh@temuko:~$ The lsusb -v is at http://paste.ubuntu.com/5607907/ What is my conclusion? That I was unable to make it misbehave after I turned off pulse audio... I will keep playing with it on and off over the next little while and report back. -- Chris Hermansen · clhermansen "at" gmail "dot" com C'est ma façon de parler. ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
