No DVB input Raspberry pi & pi hat

Craig Millward

Hi,

I've tried searching the forum but can't find anything. I'm trying to run tvheadend on a pizero with DVB tv hat.
I've installed tvheadend which seems to be ok but I can't get it to discover the tv adapter, green light appears on tv hat and aerial is plugged in?
Can anyone point me in the right direction? :)

DaveH

Probably posting some log details would help. You'll have to look up exactly what; I'm afraid I don't know.

Saen Acro

Is tuner installed?


ls /dev/dvb

Craig Millward

I just get this:
ls: cannot access '/dev/dvb': No such file or directory
so it appears not? sorry all very new to me :(
so far i've tried with raspbery os lite and librelec but no joy

davep

Have you seen these instructions?

https://www.raspberrypi.org/app/uploads/2018/10/Getting-started-with-the-Raspberry-Pi-TV-HAT.pdf

The Pi Zero doesn't come with GPIO headers fitted. Did you solder them in yourself, if so are there any solder bridges or poor connections?
Try entering


dmesg

at a terminal and post the (complete) output here.

Saen Acro

Craig Millward wrote:
> I just get this:

> ls: cannot access '/dev/dvb': No such file or directory

No driver installed

Craig Millward

Dave Pickles wrote:
> Have you seen these instructions?
> https://www.raspberrypi.org/app/uploads/2018/10/Getting-started-with-the-Raspberry-Pi-TV-HAT.pdf >
> The Pi Zero doesn't come with GPIO headers fitted. Did you solder them in yourself, if so are there any solder bridges or poor connections?
> Try entering
> [...]

> at a terminal and post the (complete) output here.

I followed those instructions but can only get to 'You should see a window titled Network settings. Under Network 2, you should see

Tuner: Sony CDX2880 #0 : DVB-T #0. For Network type, choose DVB-T Network.' before i can't get any further.

Should the drivers install once the hat is detected or do i need to run an ssh command?

Flole

You are obviously running out of memory there... You should fix that first and make sure for whatever you are trying to do enough memory is available.

Craig Millward

I've fixed running out of memory, if only everything was that easy


[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.19.118+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1311 Mon Apr 27 14:16:15 BST 2020
[    0.000000] CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi Zero W Rev 1.1
[    0.000000] Memory policy: Data cache writeback
[    0.000000] cma: Reserved 8 MiB at 0x1b400000
[    0.000000] On node 0 totalpages: 114688
[    0.000000]   Normal zone: 1008 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 114688 pages, LIFO batch:31
[    0.000000] random: get_random_bytes called from start_kernel+0x8c/0x494 with crng_init=0
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 113680
[    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 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbswap=1 smsc95xx.macaddr=B8:27:EB:63:FE:F9 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000  console=ttyS0,115200 console=tty1 root=PARTUUID=cc3117d9-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 434128K/458752K available (7168K kernel code, 656K rwdata, 2132K rodata, 468K init, 797K bss, 16432K reserved, 8192K cma-reserved)
[    0.000000] Virtual kernel memory layout:
                   vector  : 0xffff0000 - 0xffff1000   (   4 kB)
                   fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
                   vmalloc : 0xdc800000 - 0xff800000   ( 560 MB)
                   lowmem  : 0xc0000000 - 0xdc000000   ( 448 MB)
                   modules : 0xbf000000 - 0xc0000000   (  16 MB)
                     .text : 0x(ptrval) - 0x(ptrval)   (7170 kB)
                     .init : 0x(ptrval) - 0x(ptrval)   ( 468 kB)
                     .data : 0x(ptrval) - 0x(ptrval)   ( 657 kB)
                      .bss : 0x(ptrval) - 0x(ptrval)   ( 798 kB)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] ftrace: allocating 25728 entries in 76 pages
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000033] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000096] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000225] bcm2835: system timer (irq = 27)
[    0.000648] Console: colour dummy device 80x30
[    0.001292] console [tty1] enabled
[    0.001372] Calibrating delay loop... 697.95 BogoMIPS (lpj=3489792)
[    0.060404] pid_max: default: 32768 minimum: 301
[    0.060980] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.061042] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.062485] CPU: Testing write buffer coherency: ok
[    0.063871] Setting up static identity map for 0x8200 - 0x8238
[    0.065341] devtmpfs: initialized
[    0.076883] VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
[    0.077341] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.077417] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.078788] pinctrl core: initialized pinctrl subsystem
[    0.080516] NET: Registered protocol family 16
[    0.083910] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.091367] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
[    0.091442] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.091611] Serial: AMBA PL011 UART driver
[    0.094904] bcm2835-mbox 2000b880.mailbox: mailbox enabled
[    0.110716] raspberrypi-firmware soc:firmware: Attached to firmware from 2020-04-15 11:43, variant start
[    0.120740] raspberrypi-firmware soc:firmware: Firmware hash is 82f9bb929ce2186eb1824178c1ae82902ad6275c
[    0.172227] bcm2835-dma 20007000.dma: DMA legacy API manager at (ptrval), dmachans=0x1
[    0.174816] SCSI subsystem initialized
[    0.175142] usbcore: registered new interface driver usbfs
[    0.175303] usbcore: registered new interface driver hub
[    0.175565] usbcore: registered new device driver usb
[    0.178101] clocksource: Switched to clocksource timer
[    0.286289] VFS: Disk quotas dquot_6.6.0
[    0.286478] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.286847] FS-Cache: Loaded
[    0.287245] CacheFiles: Loaded
[    0.306297] NET: Registered protocol family 2
[    0.307661] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[    0.307787] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    0.307905] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[    0.308025] TCP: Hash tables configured (established 4096 bind 4096)
[    0.308335] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.308406] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.308869] NET: Registered protocol family 1
[    0.310017] RPC: Registered named UNIX socket transport module.
[    0.310082] RPC: Registered udp transport module.
[    0.310111] RPC: Registered tcp transport module.
[    0.310137] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.312488] hw perfevents: no irqs for PMU, sampling events not supported
[    0.312613] hw perfevents: enabled with armv6_1176 PMU driver, 3 counters available
[    0.317145] Initialise system trusted keyrings
[    0.317617] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[    0.333118] FS-Cache: Netfs 'nfs' registered for caching
[    0.334517] NFS: Registering the id_resolver key type
[    0.334636] Key type id_resolver registered
[    0.334671] Key type id_legacy registered
[    0.334724] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.340514] Key type asymmetric registered
[    0.340585] Asymmetric key parser 'x509' registered
[    0.340720] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[    0.341227] io scheduler noop registered
[    0.341283] io scheduler deadline registered (default)
[    0.341914] io scheduler cfq registered
[    0.341966] io scheduler mq-deadline registered (default)
[    0.341999] io scheduler kyber registered
[    0.344867] bcm2708_fb soc:fb: FB found 1 display(s)
[    0.354292] Console: switching to colour frame buffer device 82x26
[    0.361956] bcm2708_fb soc:fb: Registered framebuffer for display 0, size 656x416
[    0.371158] bcm2835-rng 20104000.rng: hwrng registered
[    0.374411] vc-mem: phys_addr:0x00000000 mem_base=0x1ec00000 mem_size:0x20000000(512 MiB)
[    0.381131] vc-sm: Videocore shared memory driver
[    0.384679] gpiomem-bcm2835 20200000.gpiomem: Initialised: Registers at 0x20200000
[    0.410896] brd: module loaded
[    0.427628] loop: module loaded
[    0.431613] Loading iSCSI transport class v2.0-870.
[    0.435476] usbcore: registered new interface driver smsc95xx
[    0.438435] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    0.469355] dwc_otg 20980000.usb: base=(ptrval)
[    0.672542] Core Release: 2.80a
[    0.675328] Setting default values for core params
[    0.678204] Finished setting default values for core params
[    0.881503] Using Buffer DMA mode
[    0.884390] Periodic Transfer Interrupt Enhancement - disabled
[    0.887236] Multiprocessor Interrupt Enhancement - disabled
[    0.890136] OTG VER PARAM: 0, OTG VER FLAG: 0
[    0.893015] Dedicated Tx FIFOs mode
[    0.896565] WARN::dwc_otg_hcd_init:1074: FIQ DMA bounce buffers: virt = db514000 dma = 0x5b514000 len=9024
[    0.902240] FIQ FSM acceleration enabled for :
               Non-periodic Split Transactions
               Periodic Split Transactions
               High-Speed Isochronous Endpoints
               Interrupt/Control Split Transaction hack enabled
[    0.914943] dwc_otg: Microframe scheduler enabled
[    0.915195] WARN::hcd_init_fiq:457: FIQ on core 0
[    0.917831] WARN::hcd_init_fiq:458: FIQ ASM at c052bec4 length 36
[    0.920394] WARN::hcd_init_fiq:497: MPHI regs_base at dc810000
[    0.923006] dwc_otg 20980000.usb: DWC OTG Controller
[    0.925622] dwc_otg 20980000.usb: new USB bus registered, assigned bus number 1
[    0.928363] dwc_otg 20980000.usb: irq 56, io mem 0x00000000
[    0.931000] Init: Port Power? op_state=1
[    0.933536] Init: Power Port (0)
[    0.936396] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[    0.941514] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.944256] usb usb1: Product: DWC OTG Controller
[    0.946932] usb usb1: Manufacturer: Linux 4.19.118+ dwc_otg_hcd
[    0.949714] usb usb1: SerialNumber: 20980000.usb
[    0.953549] hub 1-0:1.0: USB hub found
[    0.956243] hub 1-0:1.0: 1 port detected
[    0.959949] dwc_otg: FIQ enabled
[    0.959963] dwc_otg: NAK holdoff enabled
[    0.959970] dwc_otg: FIQ split-transaction FSM enabled
[    0.959989] Module dwc_common_port init
[    0.960551] usbcore: registered new interface driver usb-storage
[    0.963763] mousedev: PS/2 mouse device common for all mice
[    0.967847] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    0.971263] bcm2835-cpufreq: min=700000 max=1000000
[    0.974766] sdhci: Secure Digital Host Controller Interface driver
[    0.977553] sdhci: Copyright(c) Pierre Ossman
[    0.981047] mmc-bcm2835 20300000.mmcnr: could not get clk, deferring probe
[    0.984746] sdhost-bcm2835 20202000.mmc: could not get clk, deferring probe
[    0.987912] sdhci-pltfm: SDHCI platform and OF driver helper
[    0.991576] ledtrig-cpu: registered to indicate activity on CPUs
[    0.994699] hidraw: raw HID events driver (C) Jiri Kosina
[    0.997871] usbcore: registered new interface driver usbhid
[    1.000940] usbhid: USB HID core driver
[    1.004985] vchiq: vchiq_init_state: slot_zero = (ptrval), is_master = 0
[    1.010226] [vc_sm_connected_init]: start
[    1.020596] [vc_sm_connected_init]: end - returning 0
[    1.025271] Initializing XFRM netlink socket
[    1.028276] NET: Registered protocol family 17
[    1.031183] Key type dns_resolver registered
[    1.035948] registered taskstats version 1
[    1.038829] Loading compiled-in X.509 certificates
[    1.051815] uart-pl011 20201000.serial: cts_event_workaround enabled
[    1.054838] 20201000.serial: ttyAMA0 at MMIO 0x20201000 (irq = 81, base_baud = 0) is a PL011 rev2
[    1.063435] mmc-bcm2835 20300000.mmcnr: mmc_debug:0 mmc_debug2:0
[    1.066424] mmc-bcm2835 20300000.mmcnr: DMA channel allocated
[    1.098238] sdhost: log_buf @ (ptrval) (5b513000)
[    1.138978] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[    1.143590] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.147996] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.150689] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[    1.154984] of_cfs_init
[    1.157630] of_cfs_init: OK
[    1.181863] Waiting for root device PARTUUID=cc3117d9-02...
[    1.185841] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    1.192613] random: fast init done
[    1.225815] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.233769] mmc0: new high speed SDHC card at address 0007
[    1.238798] mmcblk0: mmc0:0007 SD16G 14.5 GiB (quirks 0x80000000)
[    1.245063]  mmcblk0: p1 p2
[    1.284983] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    1.290613] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    1.306449] devtmpfs: mounted
[    1.315797] Freeing unused kernel memory: 468K
[    1.318688] This architecture does not have kernel memory protection.
[    1.321428] Run /sbin/init as init process
[    1.339179] mmc1: new high speed SDIO card at address 0001
[    2.159138] systemd[1]: System time before build time, advancing clock.
[    2.324781] NET: Registered protocol family 10
[    2.330337] Segment Routing with IPv6
[    2.393232] 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=hybrid)
[    2.404803] systemd[1]: Detected architecture arm.
[    2.431307] systemd[1]: Set hostname to <raspberrypi>.
[    2.469144] random: systemd: uninitialized urandom read (16 bytes read)
[    2.472558] systemd[1]: Initializing machine ID from random generator.
[    2.476134] systemd[1]: Installed transient /etc/machine-id file.
[    5.113615] random: systemd: uninitialized urandom read (16 bytes read)
[    5.139703] random: systemd: uninitialized urandom read (16 bytes read)
[    5.142945] systemd[1]: Reached target Swap.
[    5.151097] random: systemd: uninitialized urandom read (16 bytes read)
[    5.165802] systemd[1]: Listening on Syslog Socket.
[    5.219764] systemd[1]: Condition check resulted in Journal Audit Socket being skipped.
[    5.226918] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    5.239130] systemd[1]: Listening on Journal Socket (/dev/log).
[    7.578565] systemd[1]: Started Journal Service.
[    9.136520] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[    9.755767] systemd-journald[86]: Received request to flush runtime journal from PID 1
[   11.800657] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[   11.805890] media: Linux media interface: v0.10
[   11.859289] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[   11.859314] [vc_sm_connected_init]: start
[   11.888958] [vc_sm_connected_init]: installed successfully
[   11.965442] videodev: Linux video capture interface: v2.00
[   12.093347] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   12.109602] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   12.141594] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[   12.202363] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[   12.262680] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[   12.262748] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[   12.287028] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[   12.287085] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[   12.322766] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[   12.322823] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[   12.734456] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[   12.840345] bcm2835_audio soc:audio: card created with 8 channels
[   13.699847] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[   14.106161] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[   14.683299] brcmfmac: F1 signature read @0x18000000=0x1541a9a6
[   14.698283] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[   14.698750] usbcore: registered new interface driver brcmfmac
[   14.960825] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[   14.961013] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[   14.962154] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 22 2019 01:59:28 version 7.45.98.94 (r723000 CY) FWID 01-3b33decd
[   22.332573] random: crng init done
[   22.332595] random: 6 urandom warning(s) missed due to ratelimiting
[   23.600504] uart-pl011 20201000.serial: no DMA platform data
[   24.027699] Adding 102396k swap on /var/swap.  Priority:-2 extents:1 across:102396k SSFS
[   25.511904] EXT4-fs (mmcblk0p2): resizing filesystem from 386048 to 3732480 blocks
[   28.691728] 8021q: 802.1Q VLAN Support v1.8
[   29.999860] Bluetooth: Core ver 2.22
[   30.000010] NET: Registered protocol family 31
[   30.000019] Bluetooth: HCI device and connection manager initialized
[   30.000044] Bluetooth: HCI socket layer initialized
[   30.000057] Bluetooth: L2CAP socket layer initialized
[   30.000110] Bluetooth: SCO socket layer initialized
[   31.046449] Bluetooth: HCI UART driver ver 2.3
[   31.046468] Bluetooth: HCI UART protocol H4 registered
[   31.050080] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   31.050382] Bluetooth: HCI UART protocol Broadcom registered
[   33.207995] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   33.208022] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[   35.491039] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   36.907452] ICMPv6: process `dhcpcd' is using deprecated sysctl (syscall) net.ipv6.neigh.wlan0.retrans_time - use net.ipv6.neigh.wlan0.retrans_time_ms instead
[   37.853127] EXT4-fs (mmcblk0p2): resized to 2097152 blocks
[   42.200536] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   42.200550] Bluetooth: BNEP filters: protocol multicast
[   42.200579] Bluetooth: BNEP socket layer initialized
[   51.556169] EXT4-fs (mmcblk0p2): resized to 3670016 blocks
[   52.115312] EXT4-fs (mmcblk0p2): resized filesystem to 3732480

davep

I don't have experience with the TV HAT (all my tuners are USB) so this is mostly guesswork:

The TV HAT connects to the Pi via the SPI interface, and it has an on-board EPROM which configures the Pi at boot-up. I don't see any sign of an SPI driver loading. However the dmesg output seems to be from the very first boot of a brand-new installation (the 'resized filesystem' messages); I presume you've done an 'apt update && apt upgrade' and rebooted in other tests?

Is there any other hardware connected to the Pi? Multiple HATs are not allowed to be stacked.

Although it's supposed to happen automagically, you could try adding the following lines to /boot/config.txt


dtparam=spi=on
dtoverlay=rpi-tv

I see you've already asked on the RPi forums. If nothing else works you may have faulty hardware.

Craig Millward

Dave Pickles wrote:
> I don't have experience with the TV HAT (all my tuners are USB) so this is mostly guesswork:
>
> The TV HAT connects to the Pi via the SPI interface, and it has an on-board EPROM which configures the Pi at boot-up. I don't see any sign of an SPI driver loading. However the dmesg output seems to be from the very first boot of a brand-new installation (the 'resized filesystem' messages); I presume you've done an 'apt update && apt upgrade' and rebooted in other tests?
>
> Is there any other hardware connected to the Pi? Multiple HATs are not allowed to be stacked.
>
> Although it's supposed to happen automagically, you could try adding the following lines to /boot/config.txt
>
> [...]

> I see you've already asked on the RPi forums. If nothing else works you may have faulty hardware.

Thanks Dave, adding


dtparam=spi=on
dtoverlay=rpi-tv

to the config worked! :D