getting-gnss-gps-to-work

Hi Thomas
I tested at home and everything seemed to be fine, so I took the RPi to my boat, and I got intermittent results, so I brought it home and did a complete reinstall from the 1.0.0 img of openplotter, updated the firmware, etc.
But I get 2 solid green lights indicating no GNSS and AIS. Both the GNSS puck and the RPi are sitting on a french window sill will lots of visible sky. When I run the test script I get no error flags.

opening device /dev/moitessier.ctrl
size – 172
mode – A
hardware ID – P770010
hardware version – Exx
boot version –
app version – 1.2.1
functionality – 0xffffffff
system errors – 0x00000000
serial – 20373230424e430300038001
receiver 1
channel frequency 1 [Hz]: 161975000
channel frequency 2 [Hz]: 162025000
tcxo frequency [Hz]: 13000000
meta data mask: 0x00
afc range [Hz]: 1000
default afc range [Hz]: 1000
rng: 0x07 0x07
receiver 2
channel frequency 1 [Hz]: 161975000
channel frequency 2 [Hz]: 162025000
tcxo frequency [Hz]: 13000000
meta data mask: 0x00
afc range [Hz]: 1000
default afc range [Hz]: 1000
rng: 0x08 0x08
simulator
enabled: 0
interval: 1000
mmsi: 807977831 807977832
misc
write protection ID EEPROM: 1

When I run cat /dev/moitessier.spi I get results, but no lat/lon.

$GPRMC,000312.878,V,,,,,0.00,0.00,060180,,,N,V*3F
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000312.878,,,,,0,0,,,M,,M,,*4F
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,00,0*65
$GLGSV,1,1,00,1*78
$GPGLL,,,,,000312.878,V,N*7D
$GPTXT,01,01,02,ANTSTATUS=OPEN*2B
$GPRMC,000313.878,V,,,,,0.00,0.00,060180,,,N,V*3E
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000313.878,,,,,0,0,,,M,,M,,*4E
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,00,0*65
$GLGSV,1,1,00,1*78
$GPGLL,,,,,000313.878,V,N*7C
$GPTXT,01,01,02,ANTSTATUS=OPEN*2B
$GPRMC,000314.878,V,,,,,0.00,0.00,060180,,,N,V*39
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000314.878,,,,,0,0,,,M,,M,,*49
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,00,0*65
$GLGSV,1,1,00,1*78
$GPGLL,,,,,000314.878,V,N*7B
$GPTXT,01,01,02,ANTSTATUS=OPEN*2B
$GPRMC,000315.878,V,,,,,0.00,0.00,060180,,,N,V*38
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000315.878,,,,,0,0,,,M,,M,,*48
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,00,0*65
$GLGSV,1,1,00,1*78
$GPGLL,,,,,000315.878,V,N*7A
$GPTXT,01,01,02,ANTSTATUS=OPEN*2B
$GPRMC,000316.878,V,,,,,0.00,0.00,060180,,,N,V*3B
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000316.878,,,,,0,0,,,M,,M,,*4B
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,00,0*65
$GLGSV,1,1,00,1*78
$GPGLL,,,,,000316.878,V,N*79
$GPTXT,01,01,02,ANTSTATUS=OPEN*2B

When I run cat /dev/moitessier.tty I get the following message.

cat: /dev/moitessier.tty: Device or resource busy

I’d really appreciate some swift guidance.
Regards
Trevor

I’ve include the boot log too in case that is helpful. I couldn’t see how to attache a file so I copied the text.

[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.19.42-v7+ (dom@dom-XPS-13-9370) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1219 SMP Tue May 14 21:20:58 BST 2019
[ 0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=10c5383d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: Raspberry Pi 3 Model B Rev 1.2
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] cma: Reserved 8 MiB at 0x3ac00000
[ 0.000000] On node 0 totalpages: 242688
[ 0.000000] Normal zone: 2133 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 242688 pages, LIFO batch:63
[ 0.000000] random: get_random_bytes called from start_kernel+0xac/0x4b4 with crng_init=0
[ 0.000000] percpu: Embedded 17 pages/cpu s39488 r8192 d21952 u69632
[ 0.000000] pcpu-alloc: s39488 r8192 d21952 u69632 alloc=17*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 240555
[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 bcm2708_fb.fbwidth=1280 bcm2708_fb.fbheight=800 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=PARTUUID=0d6cbfc4-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 939084K/970752K available (8192K kernel code, 627K rwdata, 2164K rodata, 1024K init, 821K bss, 23476K reserved, 8192K cma-reserved)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 – 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 – 0xfff00000 (3072 kB)
vmalloc : 0xbb800000 – 0xff800000 (1088 MB)
lowmem : 0x80000000 – 0xbb400000 ( 948 MB)
modules : 0x7f000000 – 0x80000000 ( 16 MB)
.text : 0x(ptrval) – 0x(ptrval) (9184 kB)
.init : 0x(ptrval) – 0x(ptrval) (1024 kB)
.data : 0x(ptrval) – 0x(ptrval) ( 628 kB)
.bss : 0x(ptrval) – 0x(ptrval) ( 822 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 26229 entries in 77 pages
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[ 0.000007] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
[ 0.000023] Switching to timer-based delay loop, resolution 52ns
[ 0.000288] Console: colour dummy device 80×30
[ 0.000908] console [tty1] enabled
[ 0.000963] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
[ 0.001008] pid_max: default: 32768 minimum: 301
[ 0.001367] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.001404] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.002336] CPU: Testing write buffer coherency: ok
[ 0.002822] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.003492] Setting up static identity map for 0x100000 – 0x10003c
[ 0.003659] rcu: Hierarchical SRCU implementation.
[ 0.004470] smp: Bringing up secondary CPUs …
[ 0.005333] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.006263] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[ 0.007125] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[ 0.007244] smp: Brought up 1 node, 4 CPUs
[ 0.007324] SMP: Total of 4 processors activated (153.60 BogoMIPS).
[ 0.007348] CPU: All CPU(s) started in HYP mode.
[ 0.007369] CPU: Virtualization extensions available.
[ 0.008365] devtmpfs: initialized
[ 0.020474] VFP support v0.3: implementor 41 architecture 3 part 40 variant 3 rev 4
[ 0.020747] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.020796] futex hash table entries: 1024 (order: 4, 65536 bytes)
[ 0.021404] pinctrl core: initialized pinctrl subsystem
[ 0.022300] NET: Registered protocol family 16
[ 0.025258] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[ 0.031004] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.031041] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.031270] Serial: AMBA PL011 UART driver
[ 0.033778] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
[ 0.069346] bcm2835-dma 3f007000.dma: DMA legacy API manager at (ptrval), dmachans=0x1
[ 0.071316] SCSI subsystem initialized
[ 0.071566] usbcore: registered new interface driver usbfs
[ 0.071641] usbcore: registered new interface driver hub
[ 0.071753] usbcore: registered new device driver usb
[ 0.090288] raspberrypi-firmware soc:firmware: Attached to firmware from 2019-03-27 15:45, variant start
[ 0.100123] raspberrypi-firmware soc:firmware: Firmware hash is 2e98b31d18547962e564bdf88e57b3df7085c29b
[ 0.111803] clocksource: Switched to clocksource arch_sys_counter
[ 0.200396] VFS: Disk quotas dquot_6.6.0
[ 0.200507] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.200736] FS-Cache: Loaded
[ 0.200969] CacheFiles: Loaded
[ 0.210998] NET: Registered protocol family 2
[ 0.211863] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[ 0.211927] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.212059] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.212264] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.212422] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.212492] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.212844] NET: Registered protocol family 1
[ 0.213432] RPC: Registered named UNIX socket transport module.
[ 0.213459] RPC: Registered udp transport module.
[ 0.213481] RPC: Registered tcp transport module.
[ 0.213502] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.215238] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 7 counters available
[ 0.218319] Initialise system trusted keyrings
[ 0.218528] workingset: timestamp_bits=14 max_order=18 bucket_order=4
[ 0.228331] FS-Cache: Netfs ‘nfs’ registered for caching
[ 0.228928] NFS: Registering the id_resolver key type
[ 0.228979] Key type id_resolver registered
[ 0.229001] Key type id_legacy registered
[ 0.229033] nfs4filelayout_init: NFSv4 File Layout Driver Registering…
[ 0.231338] Key type asymmetric registered
[ 0.231367] Asymmetric key parser ‘x509’ registered
[ 0.231436] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[ 0.231619] io scheduler noop registered
[ 0.231643] io scheduler deadline registered (default)
[ 0.231926] io scheduler cfq registered
[ 0.231950] io scheduler mq-deadline registered (default)
[ 0.231974] io scheduler kyber registered
[ 0.235365] BCM2708FB: allocated DMA memory 0xfad10000
[ 0.235432] BCM2708FB: allocated DMA channel 0
[ 0.264406] Console: switching to colour frame buffer device 160×50
[ 0.282959] bcm2835-rng 3f104000.rng: hwrng registered
[ 0.283293] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[ 0.284039] vc-sm: Videocore shared memory driver
[ 0.284499] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
[ 0.295597] brd: module loaded
[ 0.305971] loop: module loaded
[ 0.306106] Loading iSCSI transport class v2.0-870.
[ 0.306973] libphy: Fixed MDIO Bus: probed
[ 0.307203] usbcore: registered new interface driver lan78xx
[ 0.307420] usbcore: registered new interface driver smsc95xx
[ 0.307597] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[ 0.335673] dwc_otg 3f980000.usb: base=(ptrval)
[ 0.536041] Core Release: 2.80a
[ 0.536152] Setting default values for core params
[ 0.536320] Finished setting default values for core params
[ 0.741806] Using Buffer DMA mode
[ 0.746921] Periodic Transfer Interrupt Enhancement – disabled
[ 0.752105] Multiprocessor Interrupt Enhancement – disabled
[ 0.757260] OTG VER PARAM: 0, OTG VER FLAG: 0
[ 0.762395] Dedicated Tx FIFOs mode
[ 0.767992] WARN::dwc_otg_hcd_init:1045: FIQ DMA bounce buffers: virt = bad04000 dma = 0xfad04000 len=9024
[ 0.773397] FIQ FSM acceleration enabled for :
Non-periodic Split Transactions
Periodic Split Transactions
High-Speed Isochronous Endpoints
Interrupt/Control Split Transaction hack enabled
[ 0.799929] dwc_otg: Microframe scheduler enabled
[ 0.799983] WARN::hcd_init_fiq:457: FIQ on core 1
[ 0.805200] WARN::hcd_init_fiq:458: FIQ ASM at 8064b6dc length 36
[ 0.810393] WARN::hcd_init_fiq:484: MPHI regs_base at f0006000
[ 0.815635] dwc_otg 3f980000.usb: DWC OTG Controller
[ 0.820828] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
[ 0.826155] dwc_otg 3f980000.usb: irq 56, io mem 0x00000000
[ 0.831410] Init: Port Power? op_state=1
[ 0.836568] Init: Power Port (0)
[ 0.841933] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[ 0.847195] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.852406] usb usb1: Product: DWC OTG Controller
[ 0.857572] usb usb1: Manufacturer: Linux 4.19.42-v7+ dwc_otg_hcd
[ 0.862831] usb usb1: SerialNumber: 3f980000.usb
[ 0.868677] hub 1-0:1.0: USB hub found
[ 0.873967] hub 1-0:1.0: 1 port detected
[ 0.879747] dwc_otg: FIQ enabled
[ 0.879753] dwc_otg: NAK holdoff enabled
[ 0.879759] dwc_otg: FIQ split-transaction FSM enabled
[ 0.879771] Module dwc_common_port init
[ 0.880076] usbcore: registered new interface driver usb-storage
[ 0.885559] mousedev: PS/2 mouse device common for all mice
[ 0.891825] bcm2835-wdt 3f100000.watchdog: Broadcom BCM2835 watchdog timer
[ 0.897514] bcm2835-cpufreq: min=600000 max=1200000
[ 0.903344] sdhci: Secure Digital Host Controller Interface driver
[ 0.908650] sdhci: Copyright(c) Pierre Ossman
[ 0.914267] mmc-bcm2835 3f300000.mmc: could not get clk, deferring probe
[ 0.919922] sdhost-bcm2835 3f202000.mmc: could not get clk, deferring probe
[ 0.925293] sdhci-pltfm: SDHCI platform and OF driver helper
[ 0.932145] ledtrig-cpu: registered to indicate activity on CPUs
[ 0.937665] hidraw: raw HID events driver (C) Jiri Kosina
[ 0.943221] usbcore: registered new interface driver usbhid
[ 0.948565] usbhid: USB HID core driver
[ 0.954715] vchiq: vchiq_init_state: slot_zero = (ptrval), is_master = 0
[ 0.961748] [vc_sm_connected_init]: start
[ 0.971158] [vc_sm_connected_init]: end – returning 0
[ 0.977686] Initializing XFRM netlink socket
[ 0.983277] NET: Registered protocol family 17
[ 0.988768] Key type dns_resolver registered
[ 0.994597] Registering SWP/SWPB emulation handler
[ 1.000593] registered taskstats version 1
[ 1.005922] Loading compiled-in X.509 certificates
[ 1.018452] uart-pl011 3f201000.serial: cts_event_workaround enabled
[ 1.024017] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 81, base_baud = 0) is a PL011 rev2
[ 1.031302] mmc-bcm2835 3f300000.mmc: mmc_debug:0 mmc_debug2:0
[ 1.036692] mmc-bcm2835 3f300000.mmc: DMA channel allocated
[ 1.068366] sdhost: log_buf @ (ptrval) (fad07000)
[ 1.095263] Indeed it is in host mode hprt0 = 00021501
[ 1.174614] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[ 1.181642] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 1.183953] random: fast init done
[ 1.187058] mmc0: sdhost-bcm2835 loaded – DMA enabled (>1)
[ 1.199045] of_cfs_init
[ 1.204464] of_cfs_init: OK
[ 1.210320] Waiting for root device PARTUUID=0d6cbfc4-02…
[ 1.218886] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 1.227093] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[ 1.265461] mmc0: host does not support reading read-only switch, assuming write-enable
[ 1.273714] mmc0: new high speed SDHC card at address 1234
[ 1.280299] mmcblk0: mmc0:1234 SA32G 28.8 GiB
[ 1.288020] mmcblk0: p1 p2
[ 1.301866] usb 1-1: new high-speed USB device number 2 using dwc_otg
[ 1.307386] Indeed it is in host mode hprt0 = 00001101
[ 1.323290] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 1.328842] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 1.343556] devtmpfs: mounted
[ 1.374608] Freeing unused kernel memory: 1024K
[ 1.419162] mmc1: new high speed SDIO card at address 0001
[ 1.432218] Run /sbin/init as init process
[ 1.552137] usb 1-1: New USB device found, idVendor=0424, idProduct=9514, bcdDevice= 2.00
[ 1.557810] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.564084] hub 1-1:1.0: USB hub found
[ 1.569706] hub 1-1:1.0: 5 ports detected
[ 1.875375] systemd[1]: System time before build time, advancing clock.
[ 1.891856] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[ 2.022175] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00, bcdDevice= 2.00
[ 2.027976] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.036335] smsc95xx v1.0.6
[ 2.045212] NET: Registered protocol family 10
[ 2.051935] Segment Routing with IPv6
[ 2.086329] random: systemd: uninitialized urandom read (16 bytes read)
[ 2.094653] random: systemd: uninitialized urandom read (16 bytes read)
[ 2.105949] systemd[1]: systemd 232 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
[ 2.118311] systemd[1]: Detected architecture arm.
[ 2.135874] smsc95xx 1-1.1:1.0 eth0: register ‘smsc95xx’ at usb-3f980000.usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:74:8b:b6
[ 2.159907] systemd[1]: Set hostname to <openplotter>.
[ 2.213036] random: systemd-sysv-ge: uninitialized urandom read (16 bytes read)
[ 2.599146] systemd[1]: Configuration file /etc/systemd/system/signalk.socket is marked executable. Please remove executable permission bits. Proceeding anyway.
[ 2.613924] systemd[1]: Configuration file /etc/systemd/system/signalk.service is marked executable. Please remove executable permission bits. Proceeding anyway.
[ 2.750976] systemd[1]: Listening on udev Control Socket.
[ 2.766777] systemd[1]: Reached target Swap.
[ 2.782343] systemd[1]: Listening on Journal Socket.
[ 2.797814] systemd[1]: Listening on Syslog Socket.
[ 2.813461] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 3.047094] i2c /dev entries driver
[ 3.561080] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 3.689728] systemd-journald[95]: Received request to flush runtime journal from PID 1
[ 4.065149] gpio-2 (i2c@3): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[ 4.065219] gpio-3 (i2c@3): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[ 4.073829] i2c-gpio i2c@3: using lines 2 (SDA) and 3 (SCL)
[ 4.075297] Driver for 1-wire Dallas network protocol.
[ 4.089454] gpio-4 (onewire@0): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[ 4.096917] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[ 4.099020] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[ 4.099039] [vc_sm_connected_init]: start
[ 4.102147] [vc_sm_connected_init]: installed successfully
[ 4.116540] media: Linux media interface: v0.10
[ 4.132166] usb 1-1.2: new full-speed USB device number 4 using dwc_otg
[ 4.166510] videodev: Linux video capture interface: v2.00
[ 4.198722] spi-bcm2835 3f204000.spi: chipselect 0 already in use
[ 4.198741] spi_master spi0: spi_device register error /soc/spi@7e204000/spidev@0
[ 4.198757] spi_master spi0: Failed to create SPI device for /soc/spi@7e204000/spidev@0
[ 4.273131] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 4.273664] usb 1-1.2: New USB device found, idVendor=1997, idProduct=2433, bcdDevice= 1.10
[ 4.273678] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 4.273688] usb 1-1.2: Product: mini keyboard
[ 4.273700] usb 1-1.2: Manufacturer:
[ 4.280772] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[ 4.284570] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[ 4.293688] input: mini keyboard as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:1997:2433.0001/input/input0
[ 4.310607] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[ 4.314705] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[ 4.317381] bcm2835_audio soc:audio: card created with 8 channels
[ 4.363127] hid-generic 0003:1997:2433.0001: input,hidraw0: USB HID v1.01 Keyboard [ mini keyboard] on usb-3f980000.usb-1.2/input0
[ 4.373439] input: mini keyboard Mouse as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/0003:1997:2433.0002/input/input1
[ 4.373998] input: mini keyboard System Control as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/0003:1997:2433.0002/input/input2
[ 4.457609] input: mini keyboard Consumer Control as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.1/0003:1997:2433.0002/input/input3
[ 4.458014] hid-generic 0003:1997:2433.0002: input,hidraw1: USB HID v1.01 Mouse [ mini keyboard] on usb-3f980000.usb-1.2/input1
[ 4.486779] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 4.590801] cfg80211: Loaded X.509 cert ‘sforshee: 00b28ddf47aef9cea7’
[ 4.687639] brcmfmac: F1 signature read @0x18000000=0x1541a9a6
[ 4.694510] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[ 4.694798] usbcore: registered new interface driver brcmfmac
[ 4.935547] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[ 4.935668] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[ 4.936560] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 23 2017 03:55:53 version 7.45.98.38 (r674442 CY) FWID 01-e58d219f
[ 4.963210] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[ 4.963228] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[ 4.967960] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[ 4.967975] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[ 4.991080] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[ 4.991097] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[ 5.263490] brcmfmac mmc1:0001:1 wlan1: renamed from wlan0
[ 5.997811] uart-pl011 3f201000.serial: no DMA platform data
[ 5.999523] Loading /home/pi/moitessier/modules/moitessier.ko
[ 6.136659] moitessier: loading out-of-tree module taints kernel.
[ 6.654252] smsc95xx 1-1.1:1.0 eth0: hardware isn’t capable of remote wakeup
[ 6.711878] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 6.711900] brcmfmac: power management disabled
[ 7.037735] w1_master_driver w1_bus_master1: w1_search: max_slave_count 64 reached, will continue next search.
[ 7.060197] Adding 102396k swap on /var/swap. Priority:-2 extents:1 across:102396k SSFS
[ 7.167156] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 8.074115] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xDDE1
[ 9.208629] Setting owner for /dev/moitessier.tty.
[ 9.214669] Setting access mode for /dev/moitessier.tty.
[ 20.062407] Bluetooth: Core ver 2.22
[ 20.062492] NET: Registered protocol family 31
[ 20.062499] Bluetooth: HCI device and connection manager initialized
[ 20.062520] Bluetooth: HCI socket layer initialized
[ 20.062533] Bluetooth: L2CAP socket layer initialized
[ 20.062569] Bluetooth: SCO socket layer initialized
[ 20.083217] Bluetooth: HCI UART driver ver 2.3
[ 20.083237] Bluetooth: HCI UART protocol H4 registered
[ 20.083298] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 20.083446] Bluetooth: HCI UART protocol Broadcom registered
[ 20.478375] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 20.478382] Bluetooth: BNEP filters: protocol multicast
[ 20.478396] Bluetooth: BNEP socket layer initialized
[ 20.555061] Bluetooth: RFCOMM TTY layer initialized
[ 20.555088] Bluetooth: RFCOMM socket layer initialized
[ 20.555113] Bluetooth: RFCOMM ver 1.11
[ 26.450547] fuse init (API version 7.27)
[ 49.389846] pps_core: LinuxPPS API ver. 1 registered
[ 49.389858] pps_core: Software ver. 5.3.6 – Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 49.393701] pps_ldisc: PPS line discipline registered
[ 49.396985] pps pps0: new PPS source moitessier.tty0
[ 49.397087] pps pps0: source “/dev/moitessier.tty0” added
[ 57.676898] w1_master_driver w1_bus_master1: Attaching one wire slave 00.800000000000 crc 8c
[ 57.682578] w1_master_driver w1_bus_master1: Family 0 for 00.800000000000.8c is not registered.
[ 58.248143] random: crng init done
[ 58.248159] random: 7 urandom warning(s) missed due to ratelimiting
[ 121.275014] w1_master_driver w1_bus_master1: Attaching one wire slave 00.400000000000 crc 46
[ 121.280803] w1_master_driver w1_bus_master1: Family 0 for 00.400000000000.46 is not registered.
[ 172.045519] w1_master_driver w1_bus_master1: Attaching one wire slave 00.c00000000000 crc ca
[ 172.051460] w1_master_driver w1_bus_master1: Family 0 for 00.c00000000000.ca is not registered.
[ 248.475379] w1_master_driver w1_bus_master1: Attaching one wire slave 00.200000000000 crc 23
[ 248.481881] w1_master_driver w1_bus_master1: Family 0 for 00.200000000000.23 is not registered.
[ 312.075913] w1_master_driver w1_bus_master1: Attaching one wire slave 00.a00000000000 crc af
[ 312.081795] w1_master_driver w1_bus_master1: Family 0 for 00.a00000000000.af is not registered.
[ 349.996479] w1_master_driver w1_bus_master1: Attaching one wire slave 00.600000000000 crc 65
[ 350.002335] w1_master_driver w1_bus_master1: Family 0 for 00.600000000000.65 is not registered.
[ 390.476856] w1_master_driver w1_bus_master1: Attaching one wire slave 00.e00000000000 crc e9
[ 390.482763] w1_master_driver w1_bus_master1: Family 0 for 00.e00000000000.e9 is not registered.
[ 453.476794] w1_master_driver w1_bus_master1: Attaching one wire slave 00.100000000000 crc 9d
[ 453.483580] w1_master_driver w1_bus_master1: Family 0 for 00.100000000000.9d is not registered.
[ 492.596931] w1_master_driver w1_bus_master1: Attaching one wire slave 00.900000000000 crc 11
[ 492.602539] w1_master_driver w1_bus_master1: Family 0 for 00.900000000000.11 is not registered.
[ 567.836959] w1_master_driver w1_bus_master1: Attaching one wire slave 00.500000000000 crc db
[ 567.843957] w1_master_driver w1_bus_master1: Family 0 for 00.500000000000.db is not registered.
[ 619.796944] w1_master_driver w1_bus_master1: Attaching one wire slave 00.d00000000000 crc 57
[ 619.803245] w1_master_driver w1_bus_master1: Family 0 for 00.d00000000000.57 is not registered.
[ 646.236740] w1_master_driver w1_bus_master1: Attaching one wire slave 00.300000000000 crc be
[ 646.242840] w1_master_driver w1_bus_master1: Family 0 for 00.300000000000.be is not registered.
[ 695.643530] w1_master_driver w1_bus_master1: Attaching one wire slave 00.b00000000000 crc 32
[ 695.649298] w1_master_driver w1_bus_master1: Family 0 for 00.b00000000000.32 is not registered.
[ 734.942912] w1_master_driver w1_bus_master1: Attaching one wire slave 00.700000000000 crc f8
[ 734.948385] w1_master_driver w1_bus_master1: Family 0 for 00.700000000000.f8 is not registered.
[ 786.894467] w1_master_driver w1_bus_master1: Attaching one wire slave 00.f00000000000 crc 74
[ 786.900237] w1_master_driver w1_bus_master1: Family 0 for 00.f00000000000.74 is not registered.
[ 849.375268] w1_master_driver w1_bus_master1: Attaching one wire slave 00.080000000000 crc c2
[ 849.381041] w1_master_driver w1_bus_master1: Family 0 for 00.080000000000.c2 is not registered.
[ 902.615351] w1_master_driver w1_bus_master1: Attaching one wire slave 00.880000000000 crc 4e
[ 902.620736] w1_master_driver w1_bus_master1: Family 0 for 00.880000000000.4e is not registered.
[ 940.455155] w1_master_driver w1_bus_master1: Attaching one wire slave 00.480000000000 crc 84
[ 940.460686] w1_master_driver w1_bus_master1: Family 0 for 00.480000000000.84 is not registered.
[ 991.135207] w1_master_driver w1_bus_master1: Attaching one wire slave 00.c80000000000 crc 08
[ 991.141223] w1_master_driver w1_bus_master1: Family 0 for 00.c80000000000.08 is not registered.
[ 1067.825551] w1_master_driver w1_bus_master1: Attaching one wire slave 00.280000000000 crc e1
[ 1067.831615] w1_master_driver w1_bus_master1: Family 0 for 00.280000000000.e1 is not registered.
[ 1131.335168] w1_master_driver w1_bus_master1: Attaching one wire slave 00.a80000000000 crc 6d
[ 1131.338055] w1_master_driver w1_bus_master1: Family 0 for 00.a80000000000.6d is not registered.
[ 1194.856209] w1_master_driver w1_bus_master1: Attaching one wire slave 00.680000000000 crc a7
[ 1194.861560] w1_master_driver w1_bus_master1: Family 0 for 00.680000000000.a7 is not registered.
[ 1235.256633] w1_master_driver w1_bus_master1: Attaching one wire slave 00.e80000000000 crc 2b
[ 1235.262105] w1_master_driver w1_bus_master1: Family 0 for 00.e80000000000.2b is not registered.
[ 1298.421626] w1_master_driver w1_bus_master1: Attaching one wire slave 00.180000000000 crc 5f
[ 1298.427706] w1_master_driver w1_bus_master1: Family 0 for 00.180000000000.5f is not registered.
[ 1337.626603] w1_master_driver w1_bus_master1: Attaching one wire slave 00.980000000000 crc d3
[ 1337.631960] w1_master_driver w1_bus_master1: Family 0 for 00.980000000000.d3 is not registered.
[ 1386.945717] w1_master_driver w1_bus_master1: Attaching one wire slave 00.580000000000 crc 19
[ 1386.951142] w1_master_driver w1_bus_master1: Family 0 for 00.580000000000.19 is not registered.
[ 1438.995217] w1_master_driver w1_bus_master1: Attaching one wire slave 00.d80000000000 crc 95
[ 1439.001310] w1_master_driver w1_bus_master1: Family 0 for 00.d80000000000.95 is not registered.
[ 1465.504961] w1_master_driver w1_bus_master1: Attaching one wire slave 00.380000000000 crc 7c
[ 1465.510539] w1_master_driver w1_bus_master1: Family 0 for 00.380000000000.7c is not registered.
[ 1514.985343] w1_master_driver w1_bus_master1: Attaching one wire slave 00.b80000000000 crc f0
[ 1514.991008] w1_master_driver w1_bus_master1: Family 0 for 00.b80000000000.f0 is not registered.
[ 1579.705572] w1_master_driver w1_bus_master1: Attaching one wire slave 00.780000000000 crc 3a
[ 1579.711016] w1_master_driver w1_bus_master1: Family 0 for 00.780000000000.3a is not registered.
[ 1631.745628] w1_master_driver w1_bus_master1: Attaching one wire slave 00.f80000000000 crc b6
[ 1631.752345] w1_master_driver w1_bus_master1: Family 0 for 00.f80000000000.b6 is not registered.
[ 1694.386246] w1_master_driver w1_bus_master1: Attaching one wire slave 00.040000000000 crc 61
[ 1694.392232] w1_master_driver w1_bus_master1: Family 0 for 00.040000000000.61 is not registered.
[ 1747.715877] w1_master_driver w1_bus_master1: Attaching one wire slave 00.840000000000 crc ed
[ 1747.722399] w1_master_driver w1_bus_master1: Family 0 for 00.840000000000.ed is not registered.
[ 1811.147088] w1_master_driver w1_bus_master1: Attaching one wire slave 00.440000000000 crc 27
[ 1811.153726] w1_master_driver w1_bus_master1: Family 0 for 00.440000000000.27 is not registered.
[ 1861.907616] w1_master_driver w1_bus_master1: Attaching one wire slave 00.c40000000000 crc ab
[ 1861.914419] w1_master_driver w1_bus_master1: Family 0 for 00.c40000000000.ab is not registered.
[ 1886.827609] w1_master_driver w1_bus_master1: Attaching one wire slave 00.240000000000 crc 42
[ 1886.833367] w1_master_driver w1_bus_master1: Family 0 for 00.240000000000.42 is not registered.
[ 1950.427697] w1_master_driver w1_bus_master1: Attaching one wire slave 00.a40000000000 crc ce
[ 1950.434552] w1_master_driver w1_bus_master1: Family 0 for 00.a40000000000.ce is not registered.
[ 1977.937975] w1_master_driver w1_bus_master1: Attaching one wire slave 00.640000000000 crc 04
[ 1977.940859] w1_master_driver w1_bus_master1: Family 0 for 00.640000000000.04 is not registered.
[ 2028.669406] w1_master_driver w1_bus_master1: Attaching one wire slave 00.e40000000000 crc 88
[ 2028.675962] w1_master_driver w1_bus_master1: Family 0 for 00.e40000000000.88 is not registered.
[ 2092.149580] w1_master_driver w1_bus_master1: Attaching one wire slave 00.140000000000 crc fc
[ 2092.155550] w1_master_driver w1_bus_master1: Family 0 for 00.140000000000.fc is not registered.
[ 2131.268157] w1_master_driver w1_bus_master1: Attaching one wire slave 00.940000000000 crc 70
[ 2131.273694] w1_master_driver w1_bus_master1: Family 0 for 00.940000000000.70 is not registered.
[ 2206.347184] w1_master_driver w1_bus_master1: Attaching one wire slave 00.540000000000 crc ba
[ 2206.353258] w1_master_driver w1_bus_master1: Family 0 for 00.540000000000.ba is not registered.
[ 2258.306896] w1_master_driver w1_bus_master1: Attaching one wire slave 00.d40000000000 crc 36
[ 2258.312344] w1_master_driver w1_bus_master1: Family 0 for 00.d40000000000.36 is not registered.
[ 2335.947004] w1_master_driver w1_bus_master1: Attaching one wire slave 00.340000000000 crc df
[ 2335.952720] w1_master_driver w1_bus_master1: Family 0 for 00.340000000000.df is not registered.
[ 2385.348458] w1_master_driver w1_bus_master1: Attaching one wire slave 00.b40000000000 crc 53
[ 2385.353930] w1_master_driver w1_bus_master1: Family 0 for 00.b40000000000.53 is not registered.
[ 2424.469485] w1_master_driver w1_bus_master1: Attaching one wire slave 00.740000000000 crc 99
[ 2424.476035] w1_master_driver w1_bus_master1: Family 0 for 00.740000000000.99 is not registered.

After all the effort, it appears that it may be the monitor that I have connected that is causing the problem. I had read that electrical sources may interfere with the GNSS, but I did not think of the monitor. But a quick test shows that if I have the monitor plugged into the RPi, even without the power turned on, the GNSS does not work. If I plug in another that has a longer HDMI cable, the GNSS works fine.
Any thoughts, suggestions? I can run it headless, but that was not my intent.