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Message-ID: <577d3031-79bd-08db-b182-8e729820a6f0@gmail.com> Date: Thu, 21 Jan 2021 21:25:03 +0100 From: Łukasz Czuja <lukasz.czuja@...il.com> To: linux-kernel@...r.kernel.org Subject: Trying to get Sound Blaster Extigy to work under Kbuntu 20.10 kernel 5.8.0-38 Hi, I don't know if its best place to ask for a little help in what I think are errors in linux audio driver, however I thought I ask for some assistance. I found a very old Creative Sound Blaster Extigy device and connected it to my Acer Aspire e5-571g laptop. I was hopeful it would give me a 5.1 surround sound from an USB 1.1 (full speed) connection which: pacmd list-cards command shows : index: 2 name: <alsa_card.usb-Creative_Technology_Ltd._Sound_Blaster_Extigy-00> driver: <*module-alsa-card.c*> owner module: 32 properties: alsa.card = "2" alsa.card_name = "Sound Blaster Extigy" alsa.long_card_name = "Creative Technology Ltd. Sound Blaster Extigy at usb-0000:00:14.0-3, *full speed*" alsa.driver_name = "*snd_usb_audio*" device.bus_path = "pci-0000:00:14.0-usb-0:3:1.0" sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3:1.0/sound/card2" udev.id = "usb-Creative_Technology_Ltd._Sound_Blaster_Extigy-00" device.bus = "usb" device.vendor.id = "041e" device.vendor.name = "Creative Technology, Ltd" device.product.id = "3000" device.product.name = "SoundBlaster Extigy" device.serial = "Creative_Technology_Ltd._Sound_Blaster_Extigy" device.string = "2" device.description = "SoundBlaster Extigy" module-udev-detect.discovered = "1" device.icon_name = "audio-card-usb" profiles: input:stereo-fallback: Wejście Stereo (priority 51, available: unknown) input:multichannel-input: Wejście Wielokanałowe (priority 1, available: unknown) *output:analog-stereo*: Wyjście Analogowe stereo (priority 6500, available: unknown) output:analog-stereo+input:stereo-fallback: Wyjście Analogowe stereo + Wejście Stereo (priority 6551, available: unknown) output:analog-stereo+input:multichannel-input: Wyjście Analogowe stereo + Wejście Wielokanałowe (priority 6501, available: unknown) output:analog-surround-21: Wyjście Analogowe przestrzenne 2.1 (priority 1300, available: unknown) output:analog-surround-21+input:stereo-fallback: Wyjście Analogowe przestrzenne 2.1 + Wejście Stereo (priority 1351, available: unknown) output:analog-surround-21+input:multichannel-input: Wyjście Analogowe przestrzenne 2.1 + Wejście Wielokanałowe (priority 1301, available: unknown) output:analog-surround-41: Wyjście Analogowe przestrzenne 4.1 (priority 1300, available: unknown) output:analog-surround-41+input:stereo-fallback: Wyjście Analogowe przestrzenne 4.1 + Wejście Stereo (priority 1351, available: unknown) output:analog-surround-41+input:multichannel-input: Wyjście Analogowe przestrzenne 4.1 + Wejście Wielokanałowe (priority 1301, available: unknown) output:analog-surround-50: Wyjście Analogowe przestrzenne 5.0 (priority 1200, available: unknown) output:analog-surround-50+input:stereo-fallback: Wyjście Analogowe przestrzenne 5.0 + Wejście Stereo (priority 1251, available: unknown) output:analog-surround-50+input:multichannel-input: Wyjście Analogowe przestrzenne 5.0 + Wejście Wielokanałowe (priority 1201, available: unknown) *output:analog-surround-51*: Wyjście Analogowe przestrzenne 5.1 (priority 1300, available: unknown) output:analog-surround-51+input:stereo-fallback: Wyjście Analogowe przestrzenne 5.1 + Wejście Stereo (priority 1351, available: unknown) output:analog-surround-51+input:multichannel-input: Wyjście Analogowe przestrzenne 5.1 + Wejście Wielokanałowe (priority 1301, available: unknown) *output:iec958-stereo*: Wyjście Cyfrowe stereo (IEC958) (priority 5500, available: unknown) output:iec958-stereo+input:stereo-fallback: Wyjście Cyfrowe stereo (IEC958) + Wejście Stereo (priority 5551, available: unknown) output:iec958-stereo+input:multichannel-input: Wyjście Cyfrowe stereo (IEC958) + Wejście Wielokanałowe (priority 5501, available: unknown) off: Wyłączone (priority 0, available: unknown) active profile: <output:analog-stereo+input:stereo-fallback> sinks: alsa_output.usb-Creative_Technology_Ltd._Sound_Blaster_Extigy-00.analog-stereo/#2: SoundBlaster Extigy Analogowe stereo sources: alsa_output.usb-Creative_Technology_Ltd._Sound_Blaster_Extigy-00.analog-stereo.monitor/#6: Monitor of SoundBlaster Extigy Analogowe stereo alsa_input.usb-Creative_Technology_Ltd._Sound_Blaster_Extigy-00.stereo-fallback/#7: SoundBlaster Extigy Stereo ports: analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: unknown) properties: device.icon_name = "audio-input-microphone" analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: unknown) properties: multichannel-input: Multichannel Input (priority 0, latency offset 0 usec, available: unknown) properties: *analog-output-speaker*: Speakers (priority 10000, latency offset 0 usec, available: unknown) properties: device.icon_name = "audio-speakers" *iec958-stereo-output*: Digital Output (S/PDIF) (priority 0, latency offset 0 usec, available: unknown) properties: What seems to work is output:iec958-stereo, a 2.0 digital stereo and output:analog-stereo, 2.0 analog stereo. When I switch to any multichannel output the sound that comes out of most speakers seems to be delayed and is interrupted by "mettalic" noise. lsusb: Bus 002 Device 006: ID 041e:3000 Creative Technology, Ltd SoundBlaster Extigy lsmod | grep snd *snd_usb_audio* 286720 4 snd_usbmidi_lib 36864 1 snd_usb_audio snd_seq_dummy 16384 0 snd_hrtimer 16384 1 snd_hda_codec_realtek 131072 1 snd_hda_codec_generic 81920 1 snd_hda_codec_realtek ledtrig_audio 16384 1 snd_hda_codec_generic snd_hda_codec_hdmi 61440 1 snd_hda_intel 53248 4 snd_intel_dspcfg 24576 1 snd_hda_intel snd_hda_codec 143360 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek snd_hda_core 94208 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek snd_hwdep 20480 2 snd_usb_audio,snd_hda_codec snd_pcm 118784 6 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core snd_seq_midi 20480 0 snd_seq_midi_event 16384 1 snd_seq_midi snd_rawmidi 36864 2 snd_seq_midi,snd_usbmidi_lib snd_seq 73728 9 snd_seq_midi,snd_seq_midi_event,snd_seq_dummy snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi snd_timer 40960 3 snd_seq,snd_hrtimer,snd_pcm mc 57344 5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common snd 94208 31 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi soundcore 16384 1 snd It may be the case that USB 1.1 here is a limitation. Also maybe some inkernel changes over the years made some impact on Extigy's driver. Can any one help out what should I look for to get it to work? Thanks, Łukasz Czuja
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