NooElec NESDR Mini 2 SDR & DVB-T USB Stick (RTL2832 + R820T2) is compatible with TvHeadend?

Saadulla A

Hello dear friends,
I'm in trouble with my mini sdr DVB-T stick, it's not scanning Tv channels and always said: Scan Result: FAIL.

That is why i'm asking is that stick compatible with TvHeadend and it can grab DVB-T channels?

NooElec NESDR Mini 2 SDR & DVB-T USB Stick (RTL2832 + R820T2)
https://www.amazon.com/NooElec-NESDR-Mini-RTL2832-Antenna/dp/B00P2UOU72/ref=pd_sbs_504_2/168-4178873-5648049?_encoding=UTF8&pd_rd_i=B00P2UOU72&pd_rd_r=V2AYCK6S9NRRS7CMDV3E&pd_rd_w=0aztc&pd_rd_wg=IML3T&psc=1&refRID=V2AYCK6S9NRRS7CMDV3E

Some of USB Stick details:

These units are based on the R820T2 tuner IC made by Rafael Micro. As such, they have a frequency capability of approximately 25MHz-1750MHz. There is also an RTL2832U IC on board of course, which acts as the demodulator and USB interface.

Interested in frequencies below 25MHz? We recommend you take a look at our Ham It Up upconverter, which will let you listen all the way down to 100kHz or lower with impeccable sensitivity.

The connector type on the SDR in female MCX, and on the antenna, male MCX. There are plenty of adapter and adapter cables available in our store if you want to connect your favorite antenna!

https://images-na.ssl-images-amazon.com/images/I/81F53GMvPcL._SL1500_.jpg

Saen Acro

DMESG after plug device.
FEMON log during scan.

Saadulla A

Dear saen, this is dmesg log.
But I didn't understand the femon log, I'm new in lunix please can you tell me what should I do exactly?
saadulla@saadulla:~$ dmesg
[ 0.000000] microcode: CPU0 microcode updated early to revision 0xa4, date = 2010-10-02
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 4.4.0-31-generic (buildd@lgw01-16) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2.1) ) #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 (Ubuntu 4.4.0-31.50-generic 4.4.13)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic root=UUID=7bab4eb3-7c16-46d3-bd14-da8308904056 ro quiet splash vt.handoff=7
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] x86/fpu: Legacy x87 FPU detected.
[ 0.000000] x86/fpu: Using 'lazy' FPU context switches.
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009efff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 2.4 present.
[ 0.000000] DMI: Dell Inc. Inspiron 1525 /0U990C, BIOS A16 10/16/2008
[ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.000000] e820: last_pfn = 0x7f66d max_arch_pfn = 0x400000000
[ 0.000000] MTRR default type: uncachable
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] 00000-9FFFF write-back
[ 0.000000] A0000-BFFFF uncachable
[ 0.000000] C0000-CFFFF write-protect
[ 0.000000] D0000-EFFFF uncachable
[ 0.000000] F0000-FFFFF write-protect
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 000000000 mask F80000000 write-back
[ 0.000000] 1 base 07F800000 mask FFF800000 uncachable
[ 0.000000] 2 base 07F700000 mask FFFF00000 uncachable
[ 0.000000] 3 disabled
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
[ 0.000000] original variable MTRRs
[ 0.000000] reg 0, base: 0GB, range: 2GB, type WB
[ 0.000000] reg 1, base: 2040MB, range: 8MB, type UC
[ 0.000000] reg 2, base: 2039MB, range: 1MB, type UC
[ 0.000000] total RAM covered: 2039M
[ 0.000000] Found optimal setting for mtrr clean up
[ 0.000000] gran_size: 64K chunk_size: 16M num_reg: 3 lose cover RAM: 0G
[ 0.000000] New variable MTRRs
[ 0.000000] reg 0, base: 0GB, range: 2GB, type WB
[ 0.000000] reg 1, base: 2039MB, range: 1MB, type UC
[ 0.000000] reg 2, base: 2040MB, range: 8MB, type UC
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576
[ 0.000000] BRK [0x02200000, 0x02200fff] PGTABLE
[ 0.000000] BRK [0x02201000, 0x02201fff] PGTABLE
[ 0.000000] BRK [0x02202000, 0x02202fff] PGTABLE
[ 0.000000] BRK [0x02203000, 0x02203fff] PGTABLE
[ 0.000000] BRK [0x02204000, 0x02204fff] PGTABLE
[ 0.000000] RAMDISK: [mem 0x33900000-0x35c77fff]
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x00000000000FBC60 000024 (v02 DELL )
[ 0.000000] ACPI: XSDT 0x000000007F66F200 000064 (v01 DELL M08 27D80A10 ASL 00000061)
[ 0.000000] ACPI: FACP 0x000000007F66F09C 0000F4 (v04 DELL M08 27D80A10 ASL 00000061)
[ 0.000000] ACPI: DSDT 0x000000007F66F800 005477 (v02 INT430 SYSFexxx 00001001 INTL 20050624)
[ 0.000000] ACPI: FACS 0x000000007F67E000 000040
[ 0.000000] ACPI: FACS 0x000000007F67E000 000040
[ 0.000000] DMA zone: 64 pages used for memmap
[ 0.000000] DMA zone: 21 pages reserved
[ 0.000000] DMA zone: 3998 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 8090 pages used for memmap
[ 0.000000] DMA32 zone: 517741 pages, LIFO batch:31
[ 0.000000] Reserving Intel graphics stolen memory at 0x7f800000-0x7fffffff
[ 0.000000] ACPI: PM-Timer IO Port: 0x1008
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[ 0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff]
[ 0.000000] e820: [mem 0x80000000-0xf7ffffff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:2 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 33 pages/cpu

ffff88007f400000 s98008 r8192 d28968 u1048576
[    0.000000] pcpu-alloc: s98008 r8192 d28968 u1048576 alloc=1*2097152
[    0.000000] pcpu-alloc: [0] 0 1 
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total pages: 513564
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic root=UUID=7bab4eb3-7c16-46d3-bd14-da8308904056 ro quiet splash vt.handoff=7
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Calgary: detecting Calgary via BIOS EBDA area
[    0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
[    0.000000] Memory: 1998792K/2086956K available (8393K kernel code, 1282K rwdata, 3940K rodata, 1480K init, 1292K bss, 88164K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	Build-time adjustment of leaf fanout to 64.
[    0.000000] 	RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=2.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=2
[    0.000000] NR_IRQS:16640 nr_irqs:440 16
[    0.000000] vt handoff: transparent VT on vt#7
[    0.000000] Console: colour dummy device 80x25
[    0.000000] console [tty0] enabled
[    0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns
[    0.000000] hpet clockevent registered
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 1995.014 MHz processor
[    0.032163] smpboot: APIC(0) Converting physical 0 to logical package 0
[    0.032648] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.076000] smpboot: CPU0: Intel(R) Pentium(R) Dual  CPU  T3200

2.00GHz (family: 0x6, model: 0xf, stepping: 0xd)
[ 0.076000] Performance Events: PEBS fmt0+, 4-deep LBR, Core2 events, Intel PMU driver.
[ 0.076000] core: PEBS disabled due to CPU errata
[ 0.076000] ... version: 2
[ 0.076000] ... bit width: 40
[ 0.077388] evm: security.ima
[ 0.077389] evm: security.capability
[ 0.080144] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.080244] pinctrl core: initialized pinctrl subsystem
[ 0.080425] RTC time: 20:53:01, date: 12/03/16
[ 0.080583] NET: Registered protocol family 16
[ 0.088007] cpuidle: using governor ladder
[ 0.100003] cpuidle: using governor menu
[ 0.100009] PCCT header not found.
[ 0.100060] Simple Boot Flag at 0x79 set to 0x1
[ 0.104043] ACPI: bus type PCI registered
[ 0.104046] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[ 0.104149] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[ 0.104153] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
[ 0.104165] PCI: Using configuration type 1 for base access
[ 0.104174] dmi type 0xB1 record - unknown flag
[ 0.116143] ACPI: AddedOSI(Module Device) [ 0.116143] ACPI: Added OSI(Processor Device)
[ 0.116143] ACPI: AddedOSI(3.0 SCP Extensions)
[ 0.116143] ACPI: AddedOSI(Processor Aggregator Device) [ 0.126119] ACPI: Dynamic OEM Table Load: [ 0.126128] ACPI: SSDT 0xFFFF88007C1F6000 000244 (v01 PmRef Cpu0Ist 00003000 INTL 20050624) [ 0.126553] ACPI: Dynamic OEM Table Load: [ 0.126561] ACPI: SSDT 0xFFFF88007C250000 0005E5 (v01 PmRef Cpu0Cst 00003001 INTL 20050624) [ 0.127180] ACPI: Dynamic OEM Table Load: [ 0.127187] ACPI: SSDT 0xFFFF88007C153900 0000C4 (v01 PmRef Cpu1Ist 00003000 INTL 20050624) [ 0.127542] ACPI: Dynamic OEM Table Load: [ 0.127549] ACPI: SSDT 0xFFFF88007C1E3600 000085 (v01 PmRef Cpu1Cst 00003000 INTL 20050624) [ 0.128011] ACPI: Interpreter enabled [ 0.128018] ACPI Exception: AENOT_FOUND, While evaluating Sleep State [\_S1_] (20150930/hwxface-580)
[ 0.128023] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20150930/hwxface-580)
[ 0.128041] ACPI: (supports S0 S3 S4 S5)
[ 0.128044] ACPI: Using IOAPIC for interrupt routing
[ 0.128078] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.171532] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 0.171541] acpi PNP0A03:00:OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI] [ 0.171548] acpi PNP0A03:00: OSC failed (AE_NOT_FOUND); disabling ASPM
[ 0.171560] acpi PNP0A03:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge
[ 0.181794] PCI host bridge to bus 0000:00
[ 0.181798] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 0.181802] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 0.181805] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[ 0.181807] pci_bus 0000:00: root bus resource [mem 0x000d0000-0x000dffff window]
[ 0.181810] pci_bus 0000:00: root bus resource [mem 0x80000000-0xf7ffffff window]
[ 0.181814] pci_bus 0000:00: root bus resource [mem 0xfc000000-0xfebfffff window]
[ 0.181816] pci_bus 0000:00: root bus resource [mem 0xfec10000-0xfecfffff window]
[ 0.181819] pci_bus 0000:00: root bus resource [mem 0xfed1c000-0xfed1ffff window]
[ 0.181822] pci_bus 0000:00: root bus resource [mem 0xfed90000-0xfed9ffff window]
[ 0.181824] pci_bus 0000:00: root bus resource [mem 0xfeda7000-0xfedfffff window]
[ 0.181827] pci_bus 0000:00: root bus resource [mem 0xfee10000-0xff9fffff window]
[ 0.181830] pci_bus 0000:00: root bus resource [mem 0xffc00000-0xffdfffff window]
[ 0.215041] usbcore: registered new interface driver usbfs
[ 0.215041] usbcore: registered new interface driver hub
[ 0.215041] usbcore: registered new device driver usb
[ 0.215041] PCI: Using ACPI for IRQ routing
[ 0.218651] PCI: pci_cache_line_size set to 64 bytes
[ 0.218754] e820: reserve RAM buffer [mem 0x0009f000-0x0009ffff]
[ 0.218757] e820: reserve RAM buffer [mem 0x7f66d800-0x7fffffff]
[ 0.218940] NetLabel: Initializing
[ 1.325396] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[ 1.325675] registered taskstats version 1
[ 1.325699] Loading compiled-in X.509 certificates
[ 1.327066] Loaded X.509 cert 'Build time autogenerated kernel key: cfb4d0870811f0d88a3f3259915bd8e83759f99c'
[ 1.327099] zswap: loaded using pool lzo/zbud
[ 1.330067] Key type trusted registered
[ 1.335288] Key type encrypted registered
[ 1.335302] AppArmor: AppArmor sha1 policy hashing enabled
[ 1.335308] ima: No TPM chip found, activating TPM-bypass!
[ 1.335346] evm: HMAC attrs: 0x1
[ 1.335814] Magic number: 12:722:901
[ 1.335836] usb usb2-port2: hash matches
[ 1.335881] clocksource clocksource0: hash matches
[ 1.335998] rtc_cmos 00:03: setting system clock to 2016-12-03 20:53:02 UTC (1480798382)
[ 1.337004] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 1.337007] EDD information not available.
[ 1.337090] PM: Hibernation image not present or could not be loaded.
[ 1.352354] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input3
[ 1.610609] usb 1-1: new high-speed USB device number 2 using ehci-pci
.
.
.
.
[ 18.562696] wl: module license 'MIXED/Proprietary' taints kernel.
[ 18.562701] Disabling lock debugging due to kernel taint
[ 18.571523] wl: module verification failed: signature and/or required key missing - tainting kernel
[ 18.694409] wlan0: Broadcom BCM4328 802.11 Hybrid Wireless Controller 6.30.223.248 (r487574)
[ 18.738834] wl 0000:0b:00.0 wlp11s0: renamed from wlan0
[ 18.814975] Adding 2085884k swap on /dev/sda9. Priority:-1 extents:1 across:2085884k FS
[ 18.846082] cfg80211: World regulatory domain updated:
[ 18.846088] cfg80211: DFS Master region: unset
[ 18.846090] cfg80211: (start_freq - end_freq

 bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   18.846094] cfg80211:   (2402000 KHz - 2472000 KHz

40000 KHz), (N/A, 2000 mBm), (N/A)
[ 18.846106] cfg80211: (5250000 KHz - 5330000 KHz

 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   18.846109] cfg80211:   (5490000 KHz - 5730000 KHz

160000 KHz), (N/A, 2000 mBm), (0 s)
[ 18.846111] cfg80211: (5735000 KHz - 5835000 KHz

 80000 KHz), (N/A, 2000 mBm), (N/A)
[   18.846114] cfg80211:   (57240000 KHz - 63720000 KHz

2160000 KHz), (N/A, 0 mBm), (N/A)
[ 19.584288] audit: type=1400 audit(1480798400.744:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/
[ 26.717046] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 26.717052] Bluetooth: BNEP filters: protocol multicast
[ 26.717059] Bluetooth: BNEP socket layer initialized
[ 33.700000] IPv6: ADDRCONF(NETDEV_UP): wlp11s0: link is not ready
[ 33.707931] IPv6: ADDRCONF(NETDEV_UP): enp9s0: link is not ready
[ 33.710737] sky2 0000:09:00.0 enp9s0: enabling interface
[ 33.710889] IPv6: ADDRCONF(NETDEV_UP): enp9s0: link is not ready
[ 44.613257] cfg80211: Regulatory domain changed to country: SA
[ 44.613265] cfg80211: DFS Master region: ETSI
[ 44.613267] cfg80211: (start_freq - end_freq

 bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   44.613271] cfg80211:   (2402000 KHz - 2482000 KHz

40000 KHz), (N/A, 2000 mBm), (N/A)
[ 44.613275] cfg80211: (5170000 KHz - 5250000 KHz

 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[   44.613278] cfg80211:   (5250000 KHz - 5330000 KHz

80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 44.613281] cfg80211: (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2700 mBm), (0 s)
[ 63.386535] Bluetooth: RFCOMM TTY layer initialized
[ 63.386547] Bluetooth: RFCOMM socket layer initialized
[ 63.386560] Bluetooth: RFCOMM ver 1.11
[ 126.093829] do_trap: 33 callbacks suppressed
[ 126.093835] traps: pool[1962] trap int3 ip:7f6ed4483a6b sp:7f6eb143e6f0 error:0
[ 393.354168] [Firmware Bug]: Duplicate ACPI video bus devices for the same VGA controller, please try module parameter "video.allow_duplicates=1"if the current driver doesn'

Saadulla A

continue

[ 393.354168] [Firmware Bug]: Duplicate ACPI video bus devices for the same VGA controller, please try module parameter "video.allow_duplicates=1"if the current driver doesn't work.
[ 393.354201] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[ 393.354211] lpc_ich 0000:00:1f.0: BAR 13: [io size 0x0080] has bogus alignment
[ 395.002430] [Firmware Bug]: Duplicate ACPI video bus devices for the same VGA controller, please try module parameter "video.allow_duplicates=1"if the current driver doesn't work.
[ 395.002482] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[ 395.002497] lpc_ich 0000:00:1f.0: BAR 13: [io size 0x0080] has bogus alignment
[ 444.661522] perf interrupt took too long (2519 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[ 463.892144] usb 2-3: new high-speed USB device number 3 using ehci-pci
[ 464.036388] usb 2-3: New USB device found, idVendor=0bda, idProduct=2838
[ 464.036398] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 464.036404] usb 2-3: Product: RTL2838UHIDIR
[ 464.036410] usb 2-3: Manufacturer: Realtek
[ 464.036416] usb 2-3: SerialNumber: 00000001
[ 464.097430] usb 2-3: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state
[ 464.155016] usb 2-3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 464.155041] DVB: registering new adapter (Realtek RTL2832U reference design)
[ 464.172325] i2c i2c-7: Added multiplexed i2c bus 8
[ 464.172332] rtl2832 7-0010: Realtek RTL2832 successfully attached
[ 464.172584] usb 2-3: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
[ 464.182150] r820t 8-001a: creating new instance
[ 464.194261] r820t 8-001a: Rafael Micro r820t successfully identified
[ 464.199878] rtl2832_sdr rtl2832_sdr.2.auto: Registered as swradio0
[ 464.199884] rtl2832_sdr rtl2832_sdr.2.auto: Realtek RTL2832 SDR attached
[ 464.199887] rtl2832_sdr rtl2832_sdr.2.auto: SDR API is still slightly experimental and functionality changes may follow
[ 464.212637] Registered IR keymap rc-empty
[ 464.212839] input: Realtek RTL2832U reference design as /devices/pci0000:00/0000:00:1d.7/usb2/2-3/rc/rc0/input20
[ 464.213065] rc0: Realtek RTL2832U reference design as /devices/pci0000:00/0000:00:1d.7/usb2/2-3/rc/rc0
[ 464.220408] IR NEC protocol handler initialized
[ 464.221022] IR RC5(x/sz) protocol handler initialized
[ 464.227708] IR RC6 protocol handler initialized
[ 464.230123] IR JVC protocol handler initialized
[ 464.235017] IR Sony protocol handler initialized
[ 464.239294] IR SANYO protocol handler initialized
[ 464.243841] IR Sharp protocol handler initialized
[ 464.248349] IR MCE Keyboard/mouse protocol handler initialized
[ 464.264348] lirc_dev: IR Remote Control driver registered, major 245
[ 464.272754] IR LIRC bridge handler initialized
[ 464.279613] input: MCE IR Keyboard/Mouse (dvb_usb_rtl28xxu) as /devices/virtual/input/input21
[ 464.280654] rc rc0: lirc_dev: driver ir-lirc-codec (dvb_usb_rtl28xxu) registered at minor = 0
[ 464.280664] usb 2-3: dvb_usb_v2: schedule remote query interval to 200 msecs
[ 464.280670] usb 2-3: dvb_usb_v2: 'Realtek RTL2832U reference design' successfully initialized and connected
[ 464.280736] usbcore: registered new interface driver dvb_usb_rtl28xxu
[ 464.282097] IR XMP protocol handler initialized
[ 464.860708] usb 2-3: USB disconnect, device number 3
[ 464.864519] rtl2832 7-0010: i2c reg read failed -71
[ 464.864542] rtl2832 7-0010: i2c reg read failed -19
[ 464.864553] r820t 8-001a: r820t_write: i2c wr failed=-19 reg=05 len=1: 83
[ 464.865383] usb 2-3: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
[ 464.865438] rtl2832 7-0010: i2c reg read failed -19
[ 464.866630] rtl2832 7-0010: i2c reg read failed -19
[ 464.866645] r820t 8-001a: r820t_write: i2c wr failed=-19 reg=05 len=1: 83
[ 464.869093] rtl2832 7-0010: i2c reg read failed -19
[ 464.959549] rtl2832 7-0010: i2c reg read failed -19
[ 600.116109] INFO: task kworker/1:2:113 blocked for more than 120 seconds.
[ 600.116119] Tainted: P OE 4.4.0-31-generic #50-Ubuntu
[ 600.116123] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 600.116127] kworker/1:2 D ffff880035677788 0 113 2 0x00000000
[ 600.116144] Workqueue: usb_hub_wq hub_event
[ 600.116150] ffff880035677788 ffff88007988ca98 ffff88003566e400 ffff880075a38000
[ 600.116158] ffff880035678000 ffff880077924908 ffff88007988ca98 ffff88007988c000
[ 600.116164] ffff88007988caa0 ffff8800356777a0 ffffffff81829a25 ffff8800799d6000
[ 600.116171] Call Trace:
[ 600.116184] [<ffffffff81829a25>] schedule+0x35/0x80
[ 600.116204] [<ffffffffc0c22af1>] dvb_unregister_frontend+0xd1/0x130 [dvb_core]
[ 600.116212] [<ffffffff810c3ca0>] ? wake_atomic_t_function+0x60/0x60
[ 600.116221] [<ffffffffc0c4241d>] dvb_usbv2_exit+0x13d/0x3c0 [dvb_usb_v2]
[ 600.116230] [<ffffffffc0c42714>] dvb_usbv2_disconnect+0x74/0xf0 [dvb_usb_v2]
[ 600.116239] [<ffffffff8155f4d0>] ?pm_runtime_suspend+0x80/0x80
[ 600.116246] [<ffffffff8155fad0>] ?pm_runtime_use_autosuspend+0x80/0x80
[ 600.116255] [<ffffffff8161ced6>] usb_unbind_interface+0x86/0x280
[ 600.116262] [<ffffffff81553811>]device_release_driver+0xa1/0x150
[ 600.116267] [<ffffffff815538e3>] device_release_driver+0x23/0x30
[ 600.116273] [<ffffffff81552f31>] bus_remove_device+0x101/0x170
[ 600.116278] [<ffffffff8154f089>] device_del+0x139/0x260
[ 600.116284] [<ffffffff816217ff>] ? usb_remove_ep_devs+0x1f/0x30
[ 600.116290] [<ffffffff8161a699>] usb_disable_device+0x89/0x270
[ 600.116295] [<ffffffff8160ffd2>] usb_disconnect+0x92/0x280
[ 600.116301] [<ffffffff81611ba2>] hub_port_connect+0x82/0x9c0
[ 600.116306] [<ffffffff81612bb1>] hub_event+0x6d1/0xb10
[ 600.116312] [<ffffffff810b9415>] ? put_prev_entity+0x35/0x7d0
[ 600.116318] [<ffffffff810b1497>] ? sched_clock_local+0x17/0x80
[ 600.116325] [<ffffffff8109a2c5>] process_one_work+0x165/0x480
[ 600.116331] [<ffffffff8109a62b>] worker_thread+0x4b/0x4c0
[ 600.116336] [<ffffffff8109a5e0>] ? process_one_work+0x480/0x480
[ 600.116342] [<ffffffff8109a5e0>] ? process_one_work+0x480/0x480
[ 600.116348] [<ffffffff810a0808>] kthread+0xd8/0xf0
[ 600.116353] [<ffffffff810a0730>] ? kthread_create_on_node+0x1e0/0x1e0
[ 600.116359] [<ffffffff8182decf>] ret_from_fork+0x3f/0x70
[ 600.116364] [<ffffffff810a0730>] ? kthread_create_on_node+0x1e0/0x1e0
[ 600.116402] INFO: task upowerd:1441 blocked for more than 120 seconds.
[ 600.116406] Tainted: P OE 4.4.0-31-generic #50-Ubuntu
[ 600.116409] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 600.116413] upowerd D ffff880076b6bd78 0 1441 1 0x00000000
[ 600.116420] ffff880076b6bd78 ffff8800777f6400 ffff880078c71900 ffff8800777f6400
[ 600.116427] ffff880076b6c000 ffff880075b5d8fc ffff8800777f6400 00000000ffffffff
[ 600.116434] ffff880075b5d900 ffff880076b6bd90 ffffffff81829a25 ffff880075b5d8f8
[ 600.116440] Call Trace:
[ 600.116447] [<ffffffff81829a25>] schedule+0x35/0x80
[ 600.116453] [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
[ 600.116458] [<ffffffff8182b909>]mutex_lock_slowpath+0xb9/0x130
[ 600.116463] [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
[ 600.116469] [<ffffffff81620c97>] read_descriptors+0x37/0x100
[ 600.116476] [<ffffffff8128cf9a>] sysfs_kf_bin_read+0x4a/0x70
[ 600.116481] [<ffffffff8128c50b>] kernfs_fop_read+0xab/0x160
[ 600.116488] [<ffffffff8120cc18>]vfs_read+0x18/0x40
[ 600.116493] [<ffffffff8120d1e6>] vfs_read+0x86/0x130
[ 600.116499] [<ffffffff8120df35>] SyS_read+0x55/0xc0
[ 600.116504] [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 600.116543] INFO: task colord-sane:2188 blocked for more than 120 seconds.
[ 600.116547] Tainted: P OE 4.4.0-31-generic #50-Ubuntu
[ 600.116550] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 600.116553] colord-sane D ffff8800775dfd78 0 2188 1554 0x00000000
[ 600.116560] ffff8800775dfd78 ffff88002c545780 ffff88007c0e8000 ffff88002c545780
[ 600.116567] ffff8800775e0000 ffff880075b5d8fc ffff88002c545780 00000000ffffffff
[ 600.116573] ffff880075b5d900 ffff8800775dfd90 ffffffff81829a25 ffff880075b5d8f8
[ 600.116580] Call Trace:
[ 600.116587] [<ffffffff81829a25>] schedule+0x35/0x80
[ 600.116593] [<ffffffff81829cce>] schedule_preempt_disabled+0xe/0x10
[ 600.116598] [<ffffffff8182b909>]mutex_lock_slowpath+0xb9/0x130
[ 600.116603] [<ffffffff8182b99f>] mutex_lock+0x1f/0x30
[ 600.116608] [<ffffffff81620c97>] read_descriptors+0x37/0x100
[ 600.116614] [<ffffffff8128cf9a>] sysfs_kf_bin_read+0x4a/0x70
[ 600.116619] [<ffffffff8128c50b>] kernfs_fop_read+0xab/0x160
[ 600.116625] [<ffffffff8120cc18>]vfs_read+0x18/0x40
[ 600.116630] [<ffffffff8120d1e6>] vfs_read+0x86/0x130
[ 600.116635] [<ffffffff8120df35>] SyS_read+0x55/0xc0

[ 600.116640] [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71

http://www.awesomescreenshot.com/upload//451664/7d8b5d47-a498-4d08-70ad-85d595c40547.png

Related topic is here: https://tvheadend.org/d/4419-help-tvheadend-scan-result-fail

Saen Acro

OMG do you know what meanafter

restart your pc without usb tunner

rundmesg and see last line timestamp
plug tuner wait 30 sec run againdmesg

cut lines with appears after last timestamp

your device is working (more or less)
but there is no signal or wrong values in muxes added
so addfemon log during scan

or usew_scan

Your Dell Inspiron 1525 have old bios update it
this can resolve some of messages with video card

Saadulla A

saadulla@saadulla:~$ femon
FE: Realtek RTL2832 (DVB-T) (DVBT)
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
^AProblem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported

and w_scan results:

saadulla@saadulla:~$ w_scan w_scan w_scan version 20141122 (compiled for DVB API 5.10) WARNING: could not guess your country. Falling back to 'DE' guessing country 'DE', use -c <country> to override using settings for GERMANY DVB aerial DVB-T Europe scan type TERRESTRIAL, channellist 4 output format vdr-2.0 WARNING: could not guess your codepage. Falling back to 'UTF-8' output charset 'UTF-8', use -C <charset> to override Info: using DVB adapter auto detection. main:3904: FATAL: ***** NO USEABLE TERRESTRIAL CARD FOUND. ***** Please check wether dvb driver is loaded and verify that no dvb application (i.e. vdr) is running. saadulla@saadulla:~$

About the bios, the laptop is already old, the newest version of bios is 2009 which is available in dell.com.

Saen Acro


sudo femon

for femon

for w_scan


sudo service tvheadend stop
sudo w_scan

after finish


sudo service tvheadend start

Saadulla A


saadulla@saadulla:~$ sudo femon
[sudo] password for saadulla: 
FE: Realtek RTL2832 (DVB-T) (DVBT)
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported
status       | signal 0000 | snr 0000 | ber 00000000 | unc 00000001 | 
Problem retrieving frontend information: Operation not supported

sudo w_scan result


saadulla@saadulla:~$ sudo service tvheadend stop
[sudo] password for saadulla: 
saadulla@saadulla:~$ sudo w_scan
w_scan 
w_scan version 20141122 (compiled for DVB API 5.10)
WARNING: could not guess your country. Falling back to 'DE'
guessing country 'DE', use -c <country> to override
using settings for GERMANY
DVB aerial
DVB-T Europe
scan type TERRESTRIAL, channellist 4
output format vdr-2.0
WARNING: could not guess your codepage. Falling back to 'UTF-8'
output charset 'UTF-8', use -C <charset> to override
Info: using DVB adapter auto detection.
	/dev/dvb/adapter0/frontend0 -> TERRESTRIAL "Realtek RTL2832 (DVB-T)": good :-)
Using TERRESTRIAL frontend (adapter /dev/dvb/adapter0/frontend0)
-_-_-_-_ Getting frontend capabilities-_-_-_-_ 
Using DVB API 5.10
frontend 'Realtek RTL2832 (DVB-T)' supports
INVERSION_AUTO
QAM_AUTO
TRANSMISSION_MODE_AUTO
GUARD_INTERVAL_AUTO
HIERARCHY_AUTO
FEC_AUTO
FREQ (174.00MHz ... 862.00MHz)
-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ 
Scanning DVB-T...
Scanning 7MHz frequencies...
177500: (time: 00:00.780) 
184500: (time: 00:03.548) 
191500: (time: 00:06.160) 
198500: (time: 00:08.788) 
205500: (time: 00:11.396) 
212500: (time: 00:14.028) 
219500: (time: 00:16.644) 
226500: (time: 00:19.264) 
Scanning 8MHz frequencies...
474000: (time: 00:21.905) 
482000: (time: 00:24.673) 
490000: (time: 00:27.321) 
498000: (time: 00:29.945) 
506000: (time: 00:32.577) 
514000: (time: 00:35.202) 
522000: (time: 00:37.826) 
530000: (time: 00:40.442) 
538000: (time: 00:43.058) 
546000: (time: 00:45.690) 
554000: (time: 00:48.315) 
562000: (time: 00:50.963) 
570000: (time: 00:53.587) 
578000: (time: 00:56.231) 
586000: (time: 00:58.839) 
594000: (time: 01:01.467) 
602000: (time: 01:04.075) 
610000: (time: 01:06.708) 
618000: (time: 01:09.368) 
626000: (time: 01:12.004) 
634000: (time: 01:14.632) 
642000: (time: 01:17.252) 
650000: (time: 01:19.876) 
658000: (time: 01:22.508) 
666000: (time: 01:25.133) 
674000: (time: 01:27.753) 
682000: (time: 01:30.385) 
690000: (time: 01:33.013) 
698000: (time: 01:35.621) 
706000: (time: 01:38.253) 
714000: (time: 01:40.877) 
722000: (time: 01:43.514) 
730000: (time: 01:46.134) 
738000: (time: 01:48.774) 
746000: (time: 01:51.402) 
754000: (time: 01:57.622) 
762000: (time: 02:00.230) 
770000: (time: 02:02.846) 
778000: (time: 02:05.475) 
786000: (time: 02:08.103) 
794000: (time: 02:10.711) 
802000: (time: 02:13.343) 
810000: (time: 02:15.951) 
818000: (time: 02:18.579) 
826000: (time: 02:21.223) 
834000: (time: 02:23.843) 
842000: (time: 02:26.467) 
850000: (time: 02:29.087) 
858000: (time: 02:31.716) 

ERROR: Sorry - i couldn't get any working frequency/transponder
 Nothing to scan!!
saadulla@saadulla:~$

Then I've started tvheadend service and it was still not found anything in scanning muxes.

Saen Acro

No signal found.

Saadulla A

It should found all available TV channels on local network?
What would cause this issue? why it's not found signals?

Saen Acro

Find new location for antenna.

Saadulla A

I've connected usb stick's small antennta with the big antenna on the roof, something like this:

http://www.digitaltvhelp.com.au/wp-content/uploads/2014/02/tilemount-log1.jpg

And I tried to get FM radio stations all radio stations are working like a charm with SDR software.

Is there any cause which caould prevent me to get DVB-T tv channels?

Saen Acro

Else is driver problem or fiirmware.