* [REGRESSION] usb-audio: Behringer UMC204HD broken in 7.2.10
@ 2026-10-18 16:34 Will Bush
2026-10-18 16:42 ` Takashi Iwai
0 siblings, 1 reply; 5+ messages in thread
From: Will Bush @ 2026-10-18 16:34 UTC (permalink / raw)
To: Takashi Iwai
Cc: Jaroslav Kysela, linux-sound, regressions, stable, Jan Lentfer,
Sebastian Dalfuß
Hi Takashi,
Thanks for all your work on usb-audio. I was updating my system (NixOS), which
took me from 7.2.9 to 7.2.10, and my Behringer UMC204HD device stopped working.
It gets into a loop:
[ 225.148019] blazar kernel: usb 3-4: new high-speed USB device number 19 using xhci_hcd
[ 225.340016] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35
[ 225.366005] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 225.366187] blazar kernel: usb 3-4: Product: UMC204HD 192k
[ 225.366304] blazar kernel: usb 3-4: Manufacturer: BEHRINGER
[ 230.493021] blazar kernel: usb 3-4: failed to read device descriptor: -110
[ 230.493313] blazar kernel: snd-usb-audio 3-4:1.0: probe with driver snd-usb-audio failed with error -110
[ 235.612029] blazar kernel: usb 3-4: failed to read device descriptor: -110
[ 235.612302] blazar kernel: snd-usb-audio 3-4:1.3: probe with driver snd-usb-audio failed with error -110
[ 240.732035] blazar kernel: usb 3-4: failed to read device descriptor: -110
[ 240.732461] blazar kernel: snd-usb-audio 3-4:1.4: probe with driver snd-usb-audio failed with error -110
[ 240.732538] blazar kernel: usb 3-4: USB disconnect, device number 19
[ 241.019061] blazar kernel: usb 3-4: new high-speed USB device number 20 using xhci_hcd
Issue seems to be from commit: b5c4823cf3e4 ("ALSA: usb-audio: Apply boot quirk for Behringer models generically")
I was able to patch 7.2.10 to get it working again:
- if (USB_ID_VENDOR(id) == 0x1397)
+ if (id == USB_ID(0x1397, 0x1234))
Not sure if applying the quirk to every Behringer device is too broad or what
the fix should be. Ping me if you want me to test a patch.
#regzbot introduced: b5c4823cf3e4
Thanks,
Will Bush
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [REGRESSION] usb-audio: Behringer UMC204HD broken in 7.2.10 2026-10-18 16:34 [REGRESSION] usb-audio: Behringer UMC204HD broken in 7.2.10 Will Bush @ 2026-10-18 16:42 ` Takashi Iwai 2026-10-19 8:39 ` Will Bush 0 siblings, 1 reply; 5+ messages in thread From: Takashi Iwai @ 2026-10-18 16:42 UTC (permalink / raw) To: Will Bush Cc: Takashi Iwai, Jaroslav Kysela, linux-sound, regressions, stable, Jan Lentfer, Sebastian Dalfuß On Sun, 18 Oct 2026 18:34:27 +0200, Will Bush wrote: > > Hi Takashi, > > Thanks for all your work on usb-audio. I was updating my system (NixOS), which > took me from 7.2.9 to 7.2.10, and my Behringer UMC204HD device stopped working. > > It gets into a loop: > > [ 225.148019] blazar kernel: usb 3-4: new high-speed USB device number 19 using xhci_hcd > [ 225.340016] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 > [ 225.366005] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > [ 225.366187] blazar kernel: usb 3-4: Product: UMC204HD 192k > [ 225.366304] blazar kernel: usb 3-4: Manufacturer: BEHRINGER > [ 230.493021] blazar kernel: usb 3-4: failed to read device descriptor: -110 > [ 230.493313] blazar kernel: snd-usb-audio 3-4:1.0: probe with driver snd-usb-audio failed with error -110 > [ 235.612029] blazar kernel: usb 3-4: failed to read device descriptor: -110 > [ 235.612302] blazar kernel: snd-usb-audio 3-4:1.3: probe with driver snd-usb-audio failed with error -110 > [ 240.732035] blazar kernel: usb 3-4: failed to read device descriptor: -110 > [ 240.732461] blazar kernel: snd-usb-audio 3-4:1.4: probe with driver snd-usb-audio failed with error -110 > [ 240.732538] blazar kernel: usb 3-4: USB disconnect, device number 19 > [ 241.019061] blazar kernel: usb 3-4: new high-speed USB device number 20 using xhci_hcd > > Issue seems to be from commit: b5c4823cf3e4 ("ALSA: usb-audio: Apply boot quirk for Behringer models generically") > > I was able to patch 7.2.10 to get it working again: > > - if (USB_ID_VENDOR(id) == 0x1397) > + if (id == USB_ID(0x1397, 0x1234)) > > Not sure if applying the quirk to every Behringer device is too broad or what > the fix should be. Ping me if you want me to test a patch. > > #regzbot introduced: b5c4823cf3e4 Interesting, it's just a descriptor read and this fails on your device by some reason. Could you try to ignore the error like below, and verify whether it continues to work? thanks, Takashi --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -865,7 +865,7 @@ static int snd_usb_cm1a_boot_quirk(struct usb_device *dev) err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, sizeof(*desc)); if (err < 0) { dev_err(&dev->dev, "failed to read device descriptor: %d\n", err); - return err; + // return err; } return 0; ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [REGRESSION] usb-audio: Behringer UMC204HD broken in 7.2.10 2026-10-18 16:42 ` Takashi Iwai @ 2026-10-19 8:39 ` Will Bush 2026-10-19 9:23 ` Takashi Iwai 0 siblings, 1 reply; 5+ messages in thread From: Will Bush @ 2026-10-19 8:39 UTC (permalink / raw) To: Takashi Iwai Cc: Takashi Iwai, Jaroslav Kysela, linux-sound, regressions, stable, Jan Lentfer, Sebastian Dalfuß On Sun, Oct 18, 2026, at 11:42 AM, Takashi Iwai wrote: > Interesting, it's just a descriptor read and this fails on your device > by some reason. Could you try to ignore the error like below, and > verify whether it continues to work? Thanks for the quick reply. I reverted my patch and applied yours. Device keeps disconnecting and reconnecting (just more slowly). It never ends up working. ❯ journalctl -k -b -0 -o short-monotonic | grep -E 'usb 3-4|snd-usb-audio 3-4' [ 2.264012] blazar kernel: usb 3-4: new high-speed USB device number 3 using xhci_hcd [ 2.458009] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 [ 2.484013] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2.484035] blazar kernel: usb 3-4: Product: UMC204HD 192k [ 2.484050] blazar kernel: usb 3-4: Manufacturer: BEHRINGER [ 12.976010] blazar kernel: usb 3-4: USB disconnect, device number 3 [ 18.012013] blazar kernel: usb 3-4: failed to read device descriptor: -110 [ 18.012623] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) [ 18.012768] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) [ 18.012903] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 1 (-19) [ 18.013047] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 2 (-19) [ 18.013181] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 3 (-19) [ 18.013309] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 4 (-19) [ 18.013434] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 0 (-19) [ 18.013565] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) [ 18.013690] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? [ 18.013822] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 4, val = 0/1/1 [ 18.013959] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) [ 18.014102] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? [ 18.014239] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 1, val = 0/1/1 [ 18.014374] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 1 (-19) [ 18.014508] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 2 (-19) [ 18.014635] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 0 (-19) [ 18.014763] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) [ 18.014890] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? [ 18.015021] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 2, val = 0/1/1 [ 18.015151] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) [ 18.015278] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? [ 18.015408] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 1, val = 0/1/1 [ 18.300040] blazar kernel: usb 3-4: new high-speed USB device number 6 using xhci_hcd [ 18.491087] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 [ 18.517036] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 18.517242] blazar kernel: usb 3-4: Product: UMC204HD 192k [ 18.517398] blazar kernel: usb 3-4: Manufacturer: BEHRINGER [ 23.644013] blazar kernel: usb 3-4: failed to read device descriptor: -110 [ 33.884021] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) [ 49.244015] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) [ 59.484034] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 1 (-110) [ 69.725032] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 2 (-110) [ 79.965020] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 3 (-110) [ 90.204027] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 4 (-110) [ 100.444027] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 0 (-110) [ 110.684056] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) [ 110.684281] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? [ 110.684397] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 4, val = 0/1/1 [ 115.804025] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) [ 115.812386] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? [ 115.812521] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 1, val = 0/1/1 [ 131.164026] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 1 (-110) [ 141.404011] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 2 (-110) [ 151.644020] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 0 (-110) [ 161.885033] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) [ 161.885326] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? [ 161.885446] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 2, val = 0/1/1 [ 167.004009] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) [ 167.004224] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? [ 167.004341] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 1, val = 0/1/1 [ 167.005012] blazar kernel: usb 3-4: Quirk or no altset; falling back to MIDI 1.0 [ 187.486013] blazar kernel: usb 3-4: USB disconnect, device number 6 [ 187.785034] blazar kernel: usb 3-4: new high-speed USB device number 7 using xhci_hcd ... [ 1035.327013] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 [ 1035.353013] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1035.353185] blazar kernel: usb 3-4: Product: UMC204HD 192k [ 1035.353301] blazar kernel: usb 3-4: Manufacturer: BEHRINGER [ 1040.476017] blazar kernel: usb 3-4: failed to read device descriptor: -110 [ 1050.717019] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) ... Thanks, Will ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [REGRESSION] usb-audio: Behringer UMC204HD broken in 7.2.10 2026-10-19 8:39 ` Will Bush @ 2026-10-19 9:23 ` Takashi Iwai 2026-10-19 10:23 ` Takashi Iwai 0 siblings, 1 reply; 5+ messages in thread From: Takashi Iwai @ 2026-10-19 9:23 UTC (permalink / raw) To: Will Bush Cc: Takashi Iwai, Takashi Iwai, Jaroslav Kysela, linux-sound, regressions, stable, Jan Lentfer, Sebastian Dalfuß On Mon, 19 Oct 2026 10:39:46 +0200, Will Bush wrote: > > On Sun, Oct 18, 2026, at 11:42 AM, Takashi Iwai wrote: > > Interesting, it's just a descriptor read and this fails on your device > > by some reason. Could you try to ignore the error like below, and > > verify whether it continues to work? > > Thanks for the quick reply. I reverted my patch and applied yours. Device keeps > disconnecting and reconnecting (just more slowly). It never ends up working. > > ❯ journalctl -k -b -0 -o short-monotonic | grep -E 'usb 3-4|snd-usb-audio 3-4' > [ 2.264012] blazar kernel: usb 3-4: new high-speed USB device number 3 using xhci_hcd > [ 2.458009] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 > [ 2.484013] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > [ 2.484035] blazar kernel: usb 3-4: Product: UMC204HD 192k > [ 2.484050] blazar kernel: usb 3-4: Manufacturer: BEHRINGER > [ 12.976010] blazar kernel: usb 3-4: USB disconnect, device number 3 > [ 18.012013] blazar kernel: usb 3-4: failed to read device descriptor: -110 > [ 18.012623] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > [ 18.012768] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > [ 18.012903] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 1 (-19) > [ 18.013047] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 2 (-19) > [ 18.013181] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 3 (-19) > [ 18.013309] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 4 (-19) > [ 18.013434] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 0 (-19) > [ 18.013565] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) > [ 18.013690] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > [ 18.013822] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 4, val = 0/1/1 > [ 18.013959] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) > [ 18.014102] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > [ 18.014239] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 1, val = 0/1/1 > [ 18.014374] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 1 (-19) > [ 18.014508] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 2 (-19) > [ 18.014635] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 0 (-19) > [ 18.014763] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) > [ 18.014890] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > [ 18.015021] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 2, val = 0/1/1 > [ 18.015151] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) > [ 18.015278] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > [ 18.015408] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 1, val = 0/1/1 > [ 18.300040] blazar kernel: usb 3-4: new high-speed USB device number 6 using xhci_hcd > [ 18.491087] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 > [ 18.517036] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > [ 18.517242] blazar kernel: usb 3-4: Product: UMC204HD 192k > [ 18.517398] blazar kernel: usb 3-4: Manufacturer: BEHRINGER > [ 23.644013] blazar kernel: usb 3-4: failed to read device descriptor: -110 > [ 33.884021] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > [ 49.244015] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > [ 59.484034] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 1 (-110) > [ 69.725032] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 2 (-110) > [ 79.965020] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 3 (-110) > [ 90.204027] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 4 (-110) > [ 100.444027] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 0 (-110) > [ 110.684056] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) > [ 110.684281] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > [ 110.684397] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 4, val = 0/1/1 > [ 115.804025] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) > [ 115.812386] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > [ 115.812521] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 1, val = 0/1/1 > [ 131.164026] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 1 (-110) > [ 141.404011] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 2 (-110) > [ 151.644020] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 0 (-110) > [ 161.885033] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) > [ 161.885326] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > [ 161.885446] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 2, val = 0/1/1 > [ 167.004009] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) > [ 167.004224] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > [ 167.004341] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 1, val = 0/1/1 > [ 167.005012] blazar kernel: usb 3-4: Quirk or no altset; falling back to MIDI 1.0 > [ 187.486013] blazar kernel: usb 3-4: USB disconnect, device number 6 > [ 187.785034] blazar kernel: usb 3-4: new high-speed USB device number 7 using xhci_hcd > ... > [ 1035.327013] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 > [ 1035.353013] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > [ 1035.353185] blazar kernel: usb 3-4: Product: UMC204HD 192k > [ 1035.353301] blazar kernel: usb 3-4: Manufacturer: BEHRINGER > [ 1040.476017] blazar kernel: usb 3-4: failed to read device descriptor: -110 > [ 1050.717019] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > ... OK, thanks. Then the only way to introduce some deny list. Below is a quick fix. I'm going to submit & merge this later. thanks, Takashi -- 8< -- From: Takashi Iwai <tiwai@suse.de> Subject: [PATCH] ALSA: usb-audio: Avoid applying boot quirk for Behringer UMC204HD Will reported that the recent boot quirk for Behringer devices broke his UMC204HD (1397:0508). The quirk was to just run usb_get_descriptor(), so I expected it rather harmful, but in this case, it doesn't look so. As a quick workaround, skip the quirk for UMC204HD. Fixes: b5c4823cf3e4 ("ALSA: usb-audio: Apply boot quirk for Behringer models generically") Reported-by: Will Bush <will@willbush.dev> Closes: https://lore.kernel.org/45162613-2802-401c-84c9-742f9c8c68e6@app.fastmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/usb/quirks.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 4fadb1fdcdea..0dd06cc2c854 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1790,8 +1790,14 @@ int snd_usb_apply_boot_quirk_once(struct usb_device *dev, } /* Behringer devices may need explicit device descriptor read at boot */ - if (USB_ID_VENDOR(id) == 0x1397) + if (USB_ID_VENDOR(id) == 0x1397) { + /* the quirk seems breaking on some Behringer devices */ + switch (id) { + case USB_ID(0x1397, 0x0508): /* UMC204HD */ + return 0; + } return snd_usb_cm1a_boot_quirk(dev); + } return 0; } -- 2.55.0 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [REGRESSION] usb-audio: Behringer UMC204HD broken in 7.2.10 2026-10-19 9:23 ` Takashi Iwai @ 2026-10-19 10:23 ` Takashi Iwai 0 siblings, 0 replies; 5+ messages in thread From: Takashi Iwai @ 2026-10-19 10:23 UTC (permalink / raw) To: Takashi Iwai Cc: Will Bush, Takashi Iwai, Jaroslav Kysela, linux-sound, regressions, stable, Jan Lentfer, Sebastian Dalfuß On Mon, 19 Oct 2026 11:23:48 +0200, Takashi Iwai wrote: > > On Mon, 19 Oct 2026 10:39:46 +0200, > Will Bush wrote: > > > > On Sun, Oct 18, 2026, at 11:42 AM, Takashi Iwai wrote: > > > Interesting, it's just a descriptor read and this fails on your device > > > by some reason. Could you try to ignore the error like below, and > > > verify whether it continues to work? > > > > Thanks for the quick reply. I reverted my patch and applied yours. Device keeps > > disconnecting and reconnecting (just more slowly). It never ends up working. > > > > ❯ journalctl -k -b -0 -o short-monotonic | grep -E 'usb 3-4|snd-usb-audio 3-4' > > [ 2.264012] blazar kernel: usb 3-4: new high-speed USB device number 3 using xhci_hcd > > [ 2.458009] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 > > [ 2.484013] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > > [ 2.484035] blazar kernel: usb 3-4: Product: UMC204HD 192k > > [ 2.484050] blazar kernel: usb 3-4: Manufacturer: BEHRINGER > > [ 12.976010] blazar kernel: usb 3-4: USB disconnect, device number 3 > > [ 18.012013] blazar kernel: usb 3-4: failed to read device descriptor: -110 > > [ 18.012623] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > > [ 18.012768] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > > [ 18.012903] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 1 (-19) > > [ 18.013047] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 2 (-19) > > [ 18.013181] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 3 (-19) > > [ 18.013309] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 4 (-19) > > [ 18.013434] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 0 (-19) > > [ 18.013565] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) > > [ 18.013690] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > > [ 18.013822] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 4, val = 0/1/1 > > [ 18.013959] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) > > [ 18.014102] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > > [ 18.014239] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 1, val = 0/1/1 > > [ 18.014374] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 1 (-19) > > [ 18.014508] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 2 (-19) > > [ 18.014635] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 0 (-19) > > [ 18.014763] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) > > [ 18.014890] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > > [ 18.015021] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 2, val = 0/1/1 > > [ 18.015151] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) > > [ 18.015278] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > > [ 18.015408] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 1, val = 0/1/1 > > [ 18.300040] blazar kernel: usb 3-4: new high-speed USB device number 6 using xhci_hcd > > [ 18.491087] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 > > [ 18.517036] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > > [ 18.517242] blazar kernel: usb 3-4: Product: UMC204HD 192k > > [ 18.517398] blazar kernel: usb 3-4: Manufacturer: BEHRINGER > > [ 23.644013] blazar kernel: usb 3-4: failed to read device descriptor: -110 > > [ 33.884021] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > > [ 49.244015] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > > [ 59.484034] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 1 (-110) > > [ 69.725032] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 2 (-110) > > [ 79.965020] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 3 (-110) > > [ 90.204027] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 4 (-110) > > [ 100.444027] blazar kernel: usb 3-4: 10:0: failed to get current value for ch 0 (-110) > > [ 110.684056] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) > > [ 110.684281] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > > [ 110.684397] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 4, val = 0/1/1 > > [ 115.804025] blazar kernel: usb 3-4: 10:0: cannot get min/max values for control 2 (id 10) > > [ 115.812386] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > > [ 115.812521] blazar kernel: usb 3-4: [10] FU [PCM Playback Volume] ch = 1, val = 0/1/1 > > [ 131.164026] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 1 (-110) > > [ 141.404011] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 2 (-110) > > [ 151.644020] blazar kernel: usb 3-4: 11:0: failed to get current value for ch 0 (-110) > > [ 161.885033] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) > > [ 161.885326] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > > [ 161.885446] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 2, val = 0/1/1 > > [ 167.004009] blazar kernel: usb 3-4: 11:0: cannot get min/max values for control 2 (id 11) > > [ 167.004224] blazar kernel: usb 3-4: Warning! Unlikely small volume range (=1), linear volume or custom curve? > > [ 167.004341] blazar kernel: usb 3-4: [11] FU [Mic Capture Volume] ch = 1, val = 0/1/1 > > [ 167.005012] blazar kernel: usb 3-4: Quirk or no altset; falling back to MIDI 1.0 > > [ 187.486013] blazar kernel: usb 3-4: USB disconnect, device number 6 > > [ 187.785034] blazar kernel: usb 3-4: new high-speed USB device number 7 using xhci_hcd > > ... > > [ 1035.327013] blazar kernel: usb 3-4: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35 > > [ 1035.353013] blazar kernel: usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > > [ 1035.353185] blazar kernel: usb 3-4: Product: UMC204HD 192k > > [ 1035.353301] blazar kernel: usb 3-4: Manufacturer: BEHRINGER > > [ 1040.476017] blazar kernel: usb 3-4: failed to read device descriptor: -110 > > [ 1050.717019] blazar kernel: usb 3-4: parse_audio_format_rates_v2v3(): unable to retrieve number of sample rates (clock 41) > > ... > > OK, thanks. Then the only way to introduce some deny list. > Below is a quick fix. I'm going to submit & merge this later. ... and now we received another report for the similar Behringer model, so both should be listed. I'm going to update the patch and submit. https://bugzilla.suse.com/show_bug.cgi?id=1285896 Takashi ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2026-10-19 10:23 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2026-10-18 16:34 [REGRESSION] usb-audio: Behringer UMC204HD broken in 7.2.10 Will Bush 2026-10-18 16:42 ` Takashi Iwai 2026-10-19 8:39 ` Will Bush 2026-10-19 9:23 ` Takashi Iwai 2026-10-19 10:23 ` Takashi Iwai
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