Syslog output from non working kernel with failed probe message: May 27 22:12:55 ThinkPad-T550 kernel: [ 50.880075] usb 2-3: new full-speed USB device number 5 using xhci_hcd May 27 22:12:55 ThinkPad-T550 kernel: [ 51.040249] usb 2-3: New USB device found, idVendor=19b5, idProduct=0021 May 27 22:12:55 ThinkPad-T550 kernel: [ 51.040251] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 May 27 22:12:55 ThinkPad-T550 kernel: [ 51.040252] usb 2-3: Product: PX USB May 27 22:12:55 ThinkPad-T550 kernel: [ 51.040254] usb 2-3: Manufacturer: Bowers & Wilkins May 27 22:12:55 ThinkPad-T550 kernel: [ 51.040255] usb 2-3: SerialNumber: ABCDEF0123456789 May 27 22:12:55 ThinkPad-T550 mtp-probe: checking bus 2, device 5: "/sys/devices/pci0000:00/0000:00:14.0/usb2/2-3" May 27 22:12:55 ThinkPad-T550 mtp-probe: bus: 2, device: 5 was not an MTP device May 27 22:12:55 ThinkPad-T550 kernel: [ 51.074237] hidraw: raw HID events driver (C) Jiri Kosina May 27 22:12:55 ThinkPad-T550 kernel: [ 51.099805] snd-usb-audio: probe of 2-3:1.0 failed with error -22 May 27 22:12:55 ThinkPad-T550 kernel: [ 51.107942] usb 2-3: 2:1: cannot get min/max values for control 2 (id 2) May 27 22:12:55 ThinkPad-T550 kernel: [ 51.107984] snd-usb-audio: probe of 2-3:1.1 failed with error -22 May 27 22:12:55 ThinkPad-T550 kernel: [ 51.112502] usbcore: registered new interface driver snd-usb-audio May 27 22:12:55 ThinkPad-T550 kernel: [ 51.115517] usbcore: registered new interface driver usbhid May 27 22:12:55 ThinkPad-T550 kernel: [ 51.115518] usbhid: USB HID core driver May 27 22:12:55 ThinkPad-T550 kernel: [ 51.121643] input: Bowers & Wilkins PX USB as /devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3:1.2/0003:19B5:0021.000 1/input/input19
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1773697 Title: [USB-Audio - PX USB, playback] No sound at all after kernel upgrade Status in alsa-driver package in Ubuntu: New Bug description: Bug report has been generated on a partially working configuration. That allows ubuntu-bug to do more work. USB-Audio Connection on Bowers & Wilkens PX Bluetooth Headphones started working when upgrading kernel from 4.13 to 4.15 series. Then it suddenly stopped working again on newer kernels. The bug report has been generated on the latest working mainline kernel 4.15.7. All newer kernels have some usb quirks in place, which should fix the playback sample rates to 48 kHz. The quirk seems not to be working correctly - it seems to hinder the audio system to recognize the USB-device as a sound device. The Headphones work on kernels before 4,15.7 when manually configuring pulseaudio to a default samplerate of 48 kHz. PX Headphones are on the newest firmware level. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 Uname: Linux 4.15.7-041507-lowlatency x86_64 AlsaInfo: Error: command ['/usr/share/alsa-base/alsa-info.sh', '--stdout', '--no-upload'] failed with exit code 1: mktemp: failed to create directory via template '/tmp/zsh-1000/alsa-info.XXXXXXXXXX': No such file or directory ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: dshr 2729 F.... pulseaudio /dev/snd/controlC1: dshr 2729 F.... pulseaudio /dev/snd/controlC0: dshr 2729 F.... pulseaudio CurrentDesktop: GNOME Date: Sun May 27 22:21:53 2018 InstallationDate: Installed on 2016-02-05 (841 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/zsh SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:USB successful Symptom_Card: PX USB - PX USB Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: dshr 2729 F.... pulseaudio /dev/snd/controlC1: dshr 2729 F.... pulseaudio /dev/snd/controlC0: dshr 2729 F.... pulseaudio Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: No sound at all Title: [USB-Audio - PX USB, playback] No sound at all UpgradeStatus: Upgraded to bionic on 2018-05-27 (0 days ago) dmi.bios.date: 06/23/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N11ET33W (1.09 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CJS00Q00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN11ET33W(1.09):bd06/23/2015:svnLENOVO:pn20CJS00Q00:pvrThinkPadT550:rvnLENOVO:rn20CJS00Q00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T550 dmi.product.name: 20CJS00Q00 dmi.product.version: ThinkPad T550 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1773697/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
