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HiFiBerry DAC+ Pro stopped working on rpi4

Hello,

My HiFiBerry DAC+ Pro suddenly stopped working on rpi4.

[   16.002490] snd-rpi-hifiberry-dacplus soc:sound: ASoC: failed to init link HiFiBerry DAC+: -517
[   18.072436] snd-rpi-hifiberry-dacplus soc:sound: ASoC: failed to init link HiFiBerry DAC+: -517

dmesg output:

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.4.51-v7l+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1326 SMP Fri Jul 17 10:51:18 BST 2020
[    0.000000] CPU: ARMv7 Processor [410fd083] revision 3 (ARMv7), cr=30c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi 4 Model B Rev 1.2
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] Reserved memory: created CMA memory pool at 0x000000001ec00000, size 256 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[    0.000000] On node 0 totalpages: 966656
[    0.000000]   DMA zone: 2304 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 196608 pages, LIFO batch:63
[    0.000000]   HighMem zone: 770048 pages, LIFO batch:63
[    0.000000] percpu: Embedded 20 pages/cpu s49856 r8192 d23872 u81920
[    0.000000] pcpu-alloc: s49856 r8192 d23872 u81920 alloc=20*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3  
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 964352
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 video=HDMI-A-1:640x480M@60 smsc95xx.macaddr=DC:A6:32:70:0D:27 vc_mem.mem_base
=0x3ec00000 vc_mem.mem_size=0x40000000  console=ttyS0,115200 console=tty1 root=PARTUUID=ea7d04d6-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x17cc0000-0x1bcc0000] (64MB)
[    0.000000] Memory: 3473452K/3866624K available (10240K kernel code, 725K rwdata, 2740K rodata, 2048K init, 853K bss, 131028K reserved, 262144K cma-reserved, 3080192K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] ftrace: allocating 30051 entries in 59 pages
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from start_kernel+0x340/0x518 with crng_init=0
[    0.000007] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000023] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000100] bcm2835: system timer (irq = 17)
[    0.000780] arch_timer: cp15 timer(s) running at 54.00MHz (phys).
[    0.000796] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xc743ce346, max_idle_ns: 440795203123 ns
[    0.000813] sched_clock: 56 bits at 54MHz, resolution 18ns, wraps every 4398046511102ns
[    0.000825] Switching to timer-based delay loop, resolution 18ns
[    0.001063] Console: colour dummy device 80x30
[    0.001094] printk: console [tty1] enabled
[    0.001144] Calibrating delay loop (skipped), value calculated using timer frequency.. 108.00 BogoMIPS (lpj=540000)
[    0.001164] pid_max: default: 32768 minimum: 301
[    0.001475] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.001498] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.002668] Disabling memory control group subsystem
[    0.002768] CPU: Testing write buffer coherency: ok
[    0.003247] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.004075] Setting up static identity map for 0x200000 - 0x20003c
[    0.004262] rcu: Hierarchical SRCU implementation.
[    0.004876] smp: Bringing up secondary CPUs ...
[    0.006018] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.007290] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.008500] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.008645] smp: Brought up 1 node, 4 CPUs
[    0.008662] SMP: Total of 4 processors activated (432.00 BogoMIPS).
[    0.008674] CPU: All CPU(s) started in HYP mode.
[    0.008685] CPU: Virtualization extensions available.
[    0.009425] devtmpfs: initialized
[    0.022780] VFP support v0.3: implementor 41 architecture 3 part 40 variant 8 rev 0
[    0.023011] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.023037] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.030702] pinctrl core: initialized pinctrl subsystem
[    0.031805] NET: Registered protocol family 16
[    0.035527] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.037279] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.037292] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.037626] Serial: AMBA PL011 UART driver
[    0.041308] bcm2835-mbox fe00b880.mailbox: mailbox enabled
[    0.060852] raspberrypi-firmware soc:firmware: Attached to firmware from 2020-07-17 10:59, variant start
[    0.070868] raspberrypi-firmware soc:firmware: Firmware hash is 21a15cb094f41c7506ad65d2cb9b29c550693057
[    0.125381] bcm2835-dma fe007000.dma: DMA legacy API manager, dmachans=0x1
[    0.129860] vgaarb: loaded
[    0.130323] SCSI subsystem initialized
[    0.130530] usbcore: registered new interface driver usbfs
[    0.130588] usbcore: registered new interface driver hub
[    0.130715] usbcore: registered new device driver usb
[    0.132377] clocksource: Switched to clocksource arch_sys_counter
[    0.882055] VFS: Disk quotas dquot_6.6.0
[    0.882153] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.882338] FS-Cache: Loaded
[    0.882566] CacheFiles: Loaded
[    0.883403] simple-framebuffer 3eace000.framebuffer: framebuffer at 0x3eace000, 0x12c000 bytes, mapped to 0x(ptrval)
[    0.883420] simple-framebuffer 3eace000.framebuffer: format=a8r8g8b8, mode=640x480x32, linelength=2560
[    0.883823] Console: switching to colour frame buffer device 80x30
[    0.885400] simple-framebuffer 3eace000.framebuffer: fb0: simplefb registered!
[    0.895139] thermal_sys: Registered thermal governor 'step_wise'
[    0.895483] NET: Registered protocol family 2
[    0.896199] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[    0.896229] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.896303] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.896376] TCP: Hash tables configured (established 8192 bind 8192)
[    0.896516] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.896549] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.896805] NET: Registered protocol family 1
[    0.897514] RPC: Registered named UNIX socket transport module.
[    0.897526] RPC: Registered udp transport module.
[    0.897538] RPC: Registered tcp transport module.
[    0.897550] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.897570] PCI: CLS 0 bytes, default 64
[    0.899497] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
[    0.901620] Initialise system trusted keyrings
[    0.901836] workingset: timestamp_bits=14 max_order=20 bucket_order=6
[    0.912551] FS-Cache: Netfs 'nfs' registered for caching
[    0.913274] NFS: Registering the id_resolver key type
[    0.913307] Key type id_resolver registered
[    0.913319] Key type id_legacy registered
[    0.913341] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.914422] Key type asymmetric registered
[    0.914436] Asymmetric key parser 'x509' registered
[    0.914606] bounce: pool size: 64 pages
[    0.914664] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    0.914881] io scheduler mq-deadline registered
[    0.914894] io scheduler kyber registered
[    0.918718] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges:
[    0.918741] brcm-pcie fd500000.pcie:   No bus range found for /scb/pcie@7d500000, using [bus 00-ff]
[    0.918806] brcm-pcie fd500000.pcie:      MEM 0x0600000000..0x0603ffffff -> 0x00f8000000
[    0.918870] brcm-pcie fd500000.pcie:   IB MEM 0x0000000000..0x00bfffffff -> 0x0000000000
[    0.974497] brcm-pcie fd500000.pcie: link up, 5 GT/s x1 (SSC)
[    0.974789] brcm-pcie fd500000.pcie: PCI host bridge to bus 0000:00
[    0.974807] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.974827] pci_bus 0000:00: root bus resource [mem 0x600000000-0x603ffffff] (bus address [0xf8000000-0xfbffffff])
[    0.974883] pci 0000:00:00.0: [14e4:2711] type 01 class 0x060400
[    0.975120] pci 0000:00:00.0: PME# supported from D0 D3hot
[    0.978555] PCI: bus0: Fast back to back transfers disabled
[    0.978577] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[    0.978840] pci 0000:01:00.0: [1106:3483] type 00 class 0x0c0330
[    0.978982] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00000fff 64bit]
[    0.979366] pci 0000:01:00.0: PME# supported from D0 D3cold
[    0.982830] PCI: bus1: Fast back to back transfers disabled
[    0.982849] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[    0.982887] pci 0000:00:00.0: BAR 8: assigned [mem 0x600000000-0x6000fffff]
[    0.982909] pci 0000:01:00.0: BAR 0: assigned [mem 0x600000000-0x600000fff 64bit]
[    0.982988] pci 0000:00:00.0: PCI bridge to [bus 01]
[    0.983010] pci 0000:00:00.0:   bridge window [mem 0x600000000-0x6000fffff]
[    0.983308] pcieport 0000:00:00.0: enabling device (0140 -> 0142)
[    0.983533] pcieport 0000:00:00.0: PME: Signaling with IRQ 56
[    0.983903] pcieport 0000:00:00.0: AER: enabled with IRQ 56
[    0.984245] pci 0000:01:00.0: enabling device (0140 -> 0142)
[    0.991324] iproc-rng200 fe104000.rng: hwrng registered
[    0.991659] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[    0.992309] vc-sm: Videocore shared memory driver
[    0.992912] gpiomem-bcm2835 fe200000.gpiomem: Initialised: Registers at 0xfe200000
[    1.004555] brd: module loaded
[    1.016434] loop: module loaded
[    1.017775] Loading iSCSI transport class v2.0-870.
[    1.019722] libphy: Fixed MDIO Bus: probed
[    1.020328] bcmgenet fd580000.ethernet: failed to get enet clock
[    1.020347] bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
[    1.020368] bcmgenet fd580000.ethernet: failed to get enet-wol clock
[    1.020388] bcmgenet fd580000.ethernet: failed to get enet-eee clock
[    1.020414] bcmgenet: Skipping UMAC reset
[    1.032454] libphy: bcmgenet MII bus: probed
[    1.122481] unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus
[    1.123489] usbcore: registered new interface driver r8152
[    1.123553] usbcore: registered new interface driver lan78xx
[    1.123609] usbcore: registered new interface driver smsc95xx
[    1.124017] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    1.124050] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 1
[    1.126297] xhci_hcd 0000:01:00.0: hcc params 0x002841eb hci version 0x100 quirks 0x0000001000000890
[    1.127563] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[    1.127579] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.127594] usb usb1: Product: xHCI Host Controller
[    1.127609] usb usb1: Manufacturer: Linux 5.4.51-v7l+ xhci-hcd
[    1.127623] usb usb1: SerialNumber: 0000:01:00.0
[    1.128197] hub 1-0:1.0: USB hub found
[    1.128288] hub 1-0:1.0: 1 port detected
[    1.128831] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    1.128855] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 2
[    1.128878] xhci_hcd 0000:01:00.0: Host supports USB 3.0 SuperSpeed
[    1.129363] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.04
[    1.129379] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.129394] usb usb2: Product: xHCI Host Controller
[    1.129408] usb usb2: Manufacturer: Linux 5.4.51-v7l+ xhci-hcd
[    1.129422] usb usb2: SerialNumber: 0000:01:00.0
[    1.129986] hub 2-0:1.0: USB hub found
[    1.130050] hub 2-0:1.0: 4 ports detected
[    1.131506] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    1.131794] dwc_otg: FIQ enabled
[    1.131805] dwc_otg: NAK holdoff enabled
[    1.131816] dwc_otg: FIQ split-transaction FSM enabled
[    1.131841] Module dwc_common_port init
[    1.132281] usbcore: registered new interface driver uas
[    1.132418] usbcore: registered new interface driver usb-storage
[    1.132610] mousedev: PS/2 mouse device common for all mice
[    1.134753] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    1.137236] sdhci: Secure Digital Host Controller Interface driver
[    1.137248] sdhci: Copyright(c) Pierre Ossman
[    1.137840] mmc-bcm2835 fe300000.mmcnr: could not get clk, deferring probe
[    1.138425] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.142138] ledtrig-cpu: registered to indicate activity on CPUs
[    1.142490] hidraw: raw HID events driver (C) Jiri Kosina
[    1.142676] usbcore: registered new interface driver usbhid
[    1.142687] usbhid: USB HID core driver
[    1.143706] vchiq: vchiq_init_state: slot_zero = (ptrval)
[    1.145603] [vc_sm_connected_init]: start
[    1.154739] [vc_sm_connected_init]: end - returning 0
[    1.156533] Initializing XFRM netlink socket
[    1.156568] NET: Registered protocol family 17
[    1.156666] Key type dns_resolver registered
[    1.157176] Registering SWP/SWPB emulation handler
[    1.157495] registered taskstats version 1
[    1.157514] Loading compiled-in X.509 certificates
[    1.157989] Key type ._fscrypt registered
[    1.158002] Key type .fscrypt registered
[    1.168245] uart-pl011 fe201000.serial: cts_event_workaround enabled
[    1.168311] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 29, base_baud = 0) is a PL011 rev2
[    1.176846] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[    1.177732] mmc-bcm2835 fe300000.mmcnr: mmc_debug:0 mmc_debug2:0
[    1.177747] mmc-bcm2835 fe300000.mmcnr: DMA channel allocated
[    1.228360] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[    1.229999] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.231687] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.234673] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    1.236330] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.243935] mmc0: SDHCI controller on fe340000.emmc2 [fe340000.emmc2] using ADMA
[    1.246710] of_cfs_init
[    1.246951] of_cfs_init: OK
[    1.248020] Waiting for root device PARTUUID=ea7d04d6-02...
[    1.282438] random: fast init done
[    1.304027] mmc1: new high speed SDIO card at address 0001
[    1.347511] mmc0: new ultra high speed DDR50 SDHC card at address 1234
[    1.348394] mmcblk0: mmc0:1234 SA16G 14.4 GiB
[    1.350232]  mmcblk0: p1 p2
[    1.364929] EXT4-fs (mmcblk0p2): INFO: recovery required on readonly filesystem
[    1.364943] EXT4-fs (mmcblk0p2): write access will be enabled during recovery
[    1.492424] usb 1-1: new high-speed USB device number 2 using xhci_hcd
[    1.675014] usb 1-1: New USB device found, idVendor=2109, idProduct=3431, bcdDevice= 4.21
[    1.675032] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    1.675047] usb 1-1: Product: USB2.0 Hub
[    1.676803] hub 1-1:1.0: USB hub found
[    1.677113] hub 1-1:1.0: 4 ports detected
[   11.776574] EXT4-fs (mmcblk0p2): recovery complete
[   11.780628] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[   11.780697] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[   11.781476] devtmpfs: mounted
[   11.789415] Freeing unused kernel memory: 2048K
[   11.789698] Run /sbin/init as init process
[   12.248677] systemd[1]: System time before build time, advancing clock.
[   12.386146] NET: Registered protocol family 10
[   12.387386] Segment Routing with IPv6
[   12.419603] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=h
ybrid)
[   12.420360] systemd[1]: Detected architecture arm.
[   12.465926] systemd[1]: Set hostname to <raspberrypi>.
[   13.160851] random: systemd: uninitialized urandom read (16 bytes read)
[   13.171499] random: systemd: uninitialized urandom read (16 bytes read)
[   13.174782] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[   13.175077] random: systemd: uninitialized urandom read (16 bytes read)
[   13.175572] systemd[1]: Listening on udev Kernel Socket.
[   13.176699] systemd[1]: Created slice User and Session Slice.
[   13.176841] systemd[1]: Reached target Slices.
[   13.177860] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[   13.179071] systemd[1]: Created slice system-getty.slice.
[   13.179468] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[   13.373959] i2c /dev entries driver
[   13.857880] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[   13.974897] systemd-journald[116]: Received request to flush runtime journal from PID 1
[   14.503068] rpivid-mem feb00000.hevc-decoder: rpivid-hevcmem initialised: Registers at 0xfeb00000 length 0x00010000
[   14.503995] rpivid-mem feb10000.rpivid-local-intc: rpivid-intcmem initialised: Registers at 0xfeb10000 length 0x00001000
[   14.505939] rpivid-mem feb20000.h264-decoder: rpivid-h264mem initialised: Registers at 0xfeb20000 length 0x00010000
[   14.506998] rpivid-mem feb30000.vp9-decoder: rpivid-vp9mem initialised: Registers at 0xfeb30000 length 0x00010000
[   14.590705] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[   14.593704] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[   14.593725] [vc_sm_connected_init]: start
[   14.610561] [vc_sm_connected_init]: installed successfully
[   14.617401] mc: Linux media interface: v0.10
[   14.648336] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[   14.684188] bcm2835_audio bcm2835_audio: card created with 4 channels
[   14.702516] bcm2835_audio bcm2835_audio: card created with 4 channels
[   14.703656] videodev: Linux video capture interface: v2.00
[   14.748198] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   14.750710] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   14.766489] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[   14.781354] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[   14.799470] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[   14.800024] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[   14.800846] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[   14.801902] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[   14.801929] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[   14.801949] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[   14.801968] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[   14.801987] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[   14.802276] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[   14.811868] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[   14.829192] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[   14.829235] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[   14.848646] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[   14.848686] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[   14.861226] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[   14.861276] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[   15.109089] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[   15.120622] [drm] Initialized v3d 1.0.0 20180419 for fec00000.v3d on minor 0
[   15.248434] vc4-drm gpu: bound fe600000.firmwarekms (ops vc4_fkms_ops [vc4])
[   15.248457] checking generic (3eace000 12c000) vs hw (0 ffffffffffffffff)
[   15.248471] fb0: switching to vc4drmfb from simple
[   15.255455] Console: switching to colour dummy device 80x30
[   15.255676] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   15.255689] [drm] No driver support for vblank timestamp query.
[   15.255701] [drm] Setting vblank_disable_immediate to false because get_vblank_timestamp == NULL
[   15.260797] [drm] Initialized vc4 0.0.0 20140616 for gpu on minor 1
[   15.279402] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[   15.301626] Console: switching to colour frame buffer device 80x30
[   15.301671] vc4-drm gpu: fb0: vc4drmfb frame buffer device
[   15.425976] brcmfmac: F1 signature read @0x18000000=0x15264345
[   15.438550] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[   15.439368] usbcore: registered new interface driver brcmfmac
[   15.469143] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt failed with error -2
[   15.708980] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[   15.724481] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Mar  2 2020 23:30:41 version 7.45.202 (r724630 CY) FWID 01-72f6ece2
[   16.002433] i2c-bcm2835 fe804000.i2c: i2c transfer timed out
[   16.002490] snd-rpi-hifiberry-dacplus soc:sound: ASoC: failed to init link HiFiBerry DAC+: -517
[   16.795144] uart-pl011 fe201000.serial: no DMA platform data
[   16.821002] random: crng init done
[   16.821020] random: 7 urandom warning(s) missed due to ratelimiting
[   17.032951] i2c-bcm2835 fe804000.i2c: i2c transfer timed out
[   17.032991] pcm512x 1-004d: Failed to reset device: -110
[   17.033510] pcm512x: probe of 1-004d failed with error -110
[   17.114836] 8021q: 802.1Q VLAN Support v1.8
[   17.203254] Adding 102396k swap on /var/swap.  Priority:-2 extents:1 across:102396k SSFS
[   17.381015] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[   17.720041] bcmgenet: Skipping UMAC reset
[   17.722222] bcmgenet fd580000.ethernet: configuring instance for external RGMII
[   17.722535] bcmgenet fd580000.ethernet eth0: Link is Down
[   18.072411] i2c-bcm2835 fe804000.i2c: i2c transfer timed out
[   18.072436] snd-rpi-hifiberry-dacplus soc:sound: ASoC: failed to init link HiFiBerry DAC+: -517
[   20.067597] broken atomic modeset userspace detected, disabling atomic
[   22.882973] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   23.408478] Bluetooth: Core ver 2.22
[   23.408524] NET: Registered protocol family 31
[   23.408529] Bluetooth: HCI device and connection manager initialized
[   23.408544] Bluetooth: HCI socket layer initialized
[   23.408555] Bluetooth: L2CAP socket layer initialized
[   23.408575] Bluetooth: SCO socket layer initialized
[   23.421208] Bluetooth: HCI UART driver ver 2.3
[   23.421218] Bluetooth: HCI UART protocol H4 registered
[   23.421253] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   23.421395] Bluetooth: HCI UART protocol Broadcom registered
[   23.677516] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   23.677524] Bluetooth: BNEP filters: protocol multicast
[   23.677540] Bluetooth: BNEP socket layer initialized
[   23.720898] Bluetooth: RFCOMM TTY layer initialized
[   23.720922] Bluetooth: RFCOMM socket layer initialized
[   23.720938] Bluetooth: RFCOMM ver 1.11
[   30.527256] fuse: init (API version 7.31)
[   59.802452] vc4-drm gpu: HDMI-A-1: EDID is invalid:
[   59.802478]  [00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.802492]  [00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.802504]  [00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.802516]  [00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.802527]  [00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.802539]  [00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.802551]  [00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.802563]  [00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

aplay output:

root@raspberrypi:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1]
 Subdevices: 4/4
 Subdevice #0: subdevice #0
 Subdevice #1: subdevice #1
 Subdevice #2: subdevice #2
 Subdevice #3: subdevice #3
card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
 Subdevices: 4/4
 Subdevice #0: subdevice #0
 Subdevice #1: subdevice #1
 Subdevice #2: subdevice #2
 Subdevice #3: subdevice #3

rpi4 was updated yesterday using rpi-update

root@raspberrypi:~# uname -a
Linux raspberrypi 5.4.51-v7l+ #1326 SMP Fri Jul 17 10:51:18 BST 2020 armv7l GNU/Linux

GPIO was tested using gpio test utility without any errors.

Any ideas? Is the HIFiBerry dead? It's been just a couple of months since I bought it.

Thanks,

SK

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