This happens also to me with my M-Audio Fast Track Ultra (yes, I know it is an old device but it has worked until now) after upgrading from Ubuntu 19.10 to 20.04 LTS. (Did not have any issues with 19.10.) My motherboard is Asus Prime X570-P AM4.
$ systemctl status --user pulseaudio.service ● pulseaudio.service - Sound Service Loaded: loaded (/usr/lib/systemd/user/pulseaudio.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2020-05-19 13:27:58 EEST; 17min ago TriggeredBy: ● pulseaudio.socket Main PID: 2209 (pulseaudio) CGroup: /user.slice/user-1000.slice/user@1000.service/pulseaudio.service └─2209 /usr/bin/pulseaudio --daemonize=no --log-target=journal May 19 13:27:54 [HOSTNAME MASKED] systemd[2202]: Starting Sound Service... May 19 13:27:58 [HOSTNAME MASKED] systemd[2202]: Started Sound Service. May 19 13:28:10 [HOSTNAME MASKED] pulseaudio[2209]: ALSA woke us up to write new data to the device, but there was actually nothing to write. May 19 13:28:10 [HOSTNAME MASKED] pulseaudio[2209]: Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers. May 19 13:28:10 [HOSTNAME MASKED] pulseaudio[2209]: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail. May 19 13:28:23 [HOSTNAME MASKED] pulseaudio[2209]: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. May 19 13:29:27 [HOSTNAME MASKED] pulseaudio[2209]: Got POLLNVAL from ALSA Excerpts from /var/log/syslog: May 19 13:28:10 [HOSTNAME MASKED] pulseaudio[2209]: ALSA woke us up to write new data to the device, but there was actually nothing to write. May 19 13:28:10 [HOSTNAME MASKED] pulseaudio[2209]: Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers. May 19 13:28:10 [HOSTNAME MASKED] pulseaudio[2209]: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail. May 19 13:28:23 [HOSTNAME MASKED] pulseaudio[2209]: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. May 19 13:29:27 [HOSTNAME MASKED] pulseaudio[2209]: Got POLLNVAL from ALSA ---- [Power off – power on cycle on M-Audio Fast Track Ultra] ---- May 19 13:29:27 [HOSTNAME MASKED] kernel: [ 194.584035] usb 3-3: USB disconnect, device number 2 May 19 13:29:30 [HOSTNAME MASKED] kernel: [ 197.207250] usb 3-3: new high-speed USB device number 5 using xhci_hcd May 19 13:29:30 [HOSTNAME MASKED] kernel: [ 197.233340] usb 3-3: config 1 interface 3 altsetting 0 bulk endpoint 0x7 has invalid maxpacket 8 May 19 13:29:30 [HOSTNAME MASKED] kernel: [ 197.233343] usb 3-3: config 1 interface 3 altsetting 0 bulk endpoint 0x87 has invalid maxpacket 8 May 19 13:29:30 [HOSTNAME MASKED] kernel: [ 197.234455] usb 3-3: New USB device found, idVendor=0763, idProduct=2080, bcdDevice= 1.51 May 19 13:29:30 [HOSTNAME MASKED] kernel: [ 197.234457] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 May 19 13:29:30 [HOSTNAME MASKED] kernel: [ 197.234458] usb 3-3: Product: Fast Track Ultra May 19 13:29:30 [HOSTNAME MASKED] kernel: [ 197.234459] usb 3-3: Manufacturer: M-Audio May 19 13:29:30 [HOSTNAME MASKED] mtp-probe: checking bus 3, device 5: "/sys/devices/pci0000:00/0000:00:01.2/0000:02:00.0/0000:03:08.0/0000:05:00.3/usb3/3-3" May 19 13:29:30 [HOSTNAME MASKED] mtp-probe: bus: 3, device: 5 was not an MTP device May 19 13:29:30 [HOSTNAME MASKED] systemd[2202]: Reached target Sound Card. May 19 13:29:30 [HOSTNAME MASKED] systemd[1385]: Reached target Sound Card. May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.083958] usb 3-3: set quirks for FTU Effect Feedback/Volume May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.098203] usb 3-3: set quirk for FTU Effect Duration May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.099701] usb 3-3: set quirks for FTU Effect Feedback/Volume May 19 13:29:32 [HOSTNAME MASKED] mtp-probe: checking bus 3, device 5: "/sys/devices/pci0000:00/0000:00:01.2/0000:02:00.0/0000:03:08.0/0000:05:00.3/usb3/3-3" May 19 13:29:32 [HOSTNAME MASKED] mtp-probe: bus: 3, device: 5 was not an MTP device May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.489446] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.490200] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.490973] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.491700] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.492448] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.494447] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.495193] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.495948] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.496819] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.497694] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.499701] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.500447] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.501194] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.502074] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.502945] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.505070] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.505944] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.506698] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.507571] usb 3-3: Unable to change format on ep #81: already in use May 19 13:29:32 [HOSTNAME MASKED] kernel: [ 199.508449] usb 3-3: Unable to change format on ep #81: already in use $ cat /etc/os-release NAME="Ubuntu" VERSION="20.04 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04 LTS" VERSION_ID="20.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=focal UBUNTU_CODENAME=focal $ uname -a Linux [HOSTNAME MASKED] 5.4.0-31-generic #35-Ubuntu SMP Thu May 7 20:20:34 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux $ apt-cache policy pulseaudio alsa-base alsa-utils pulseaudio: Installed: 1:13.99.1-1ubuntu3.2 Candidate: 1:13.99.1-1ubuntu3.2 Version table: *** 1:13.99.1-1ubuntu3.2 500 500 http://fi.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages 100 /var/lib/dpkg/status 1:13.99.1-1ubuntu3 500 500 http://fi.archive.ubuntu.com/ubuntu focal/main amd64 Packages alsa-base: Installed: 1.0.25+dfsg-0ubuntu5 Candidate: 1.0.25+dfsg-0ubuntu5 Version table: *** 1.0.25+dfsg-0ubuntu5 500 500 http://fi.archive.ubuntu.com/ubuntu focal/main amd64 Packages 500 http://fi.archive.ubuntu.com/ubuntu focal/main i386 Packages 100 /var/lib/dpkg/status alsa-utils: Installed: 1.2.2-1ubuntu1 Candidate: 1.2.2-1ubuntu1 Version table: *** 1.2.2-1ubuntu1 500 500 http://fi.archive.ubuntu.com/ubuntu focal/main amd64 Packages 100 /var/lib/dpkg/status $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Ultra [Fast Track Ultra], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: Generic [HD-Audio Generic], device 0: ALCS1200A Analog [ALCS1200A Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: Generic [HD-Audio Generic], device 1: ALCS1200A Digital [ALCS1200A Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1873641 Title: pulseaudio says: ALSA woke us up to write new data to the device, but there was actually nothing to write. Status in linux package in Ubuntu: Confirmed Bug description: Apr 19 03:12:37 shh pulseaudio[2107]: ALSA woke us up to write new data to the device, but there was actually nothing to write. Apr 19 03:12:37 shh pulseaudio[2107]: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers. Apr 19 03:12:37 shh pulseaudio[2107]: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail. I'm running Ubuntu 20.04 beta, and have just gotten past several crash or abort issues in pulseaudio on this Gigabyte AX370-Gaming5 motherboard. With tonight's update to: Package: pulseaudio Architecture: amd64 Version: 1:13.99.1-1ubuntu3 and the running kernel: Linux shh.toad.com 5.4.0-24-generic #28-Ubuntu SMP Thu Apr 9 22:16:42 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux I got a somg;e report like this in syslog (so far). Since the developers asked me to report it, here's the bug report. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-24-generic 5.4.0-24.28 ProcVersionSignature: Ubuntu 5.4.0-24.28-generic 5.4.30 Uname: Linux 5.4.0-24-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sun Apr 19 03:24:07 2020 InstallationDate: Installed on 2020-04-17 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) IwConfig: enp6s0 no wireless extensions. enp5s0 no wireless extensions. lo no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. AX370-Gaming 5 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-24-generic root=UUID=35b84e12-683c-43ea-9b3f-64fae90e1984 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-24-generic N/A linux-backports-modules-5.4.0-24-generic N/A linux-firmware 1.187 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: dmi.bios.date: 01/16/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F25 dmi.board.asset.tag: Default string dmi.board.name: AX370-Gaming 5 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF25:bd01/16/2019:svnGigabyteTechnologyCo.,Ltd.:pnAX370-Gaming5:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnAX370-Gaming5:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: AX370-Gaming 5 dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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