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Thread: Picture breakup on freeview T2 Belmont transmitter

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    Picture breakup on freeview T2 Belmont transmitter

    I've had picture breakup problems for a few months now, all when doing multiple recordings on different mux's ie. multiple tuners.

    I'm attaching the transponder file for
    Code:
    https://ukfree.tv/transmitters/tv/Belmont
    Abu, can you confirm if anything has changed since you last updated Belmont?

    I know BBC 4 HD moved a while ago, but I don't know if that is relevant.

    I'm finding it very difficult to establish where the problem lies (ET10k) - tuners, new kernel, new drivers, signal quality.

    Currently using 5.1.028

    Edit:

    Is it possible the power supply is struggling to support more than 1 or 2 tuners, or are they all always "on" anyway?
    Last edited by ccs; 11-06-18 at 15:48. Reason: typo

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    I'll have a look later. To rule out ABM issue, you can init 4, delete lamedb (leave bouquets), restart. scan your frequencies individually.

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    Quote Originally Posted by abu baniaz View Post
    I'll have a look later. To rule out ABM issue, you can init 4, delete lamedb (leave bouquets), restart. scan your frequencies individually.
    Thanks, I'm unable to re-create the problem, but it always seems to happen on a Sunday evening when there are multiple tuners in use.
    At the moment, I'm just trying to eliminate the easy bits.

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    The HD muxes are the same as what were originally added.

    Does the breakup occur on all recordings made at the time or only ones on a particular frequency?

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    Quote Originally Posted by abu baniaz View Post
    The HD muxes are the same as what were originally added.
    Thanks, that's one less possibility.

    Quote Originally Posted by abu baniaz View Post
    Does the breakup occur on all recordings made at the time or only ones on a particular frequency?
    It's SD channels that seem to suffer the most. Not all recordings are affected in any one session.

    eg QUEST's (C30- ,545.8MHz) recording of last Sunday's cycle race in Italy was badly affected.

    The channels work fine independently, its when more tuners get used.

    Worse case senario is when a 2 hour programme is fine for around 60 minutes, say, and then starts to break up.
    Corresponds roughly with the start of another recording (on a different mux).

    Last night, I'd left BBC4 HD on live tv, when I switched on the tv at around 21:00, BBC4 HD was unwatchable, even though only one recording was active. It was so bad I saw a single frame of the ITV football match for a split second.
    I did get it working again without rebooting.
    Last edited by ccs; 11-06-18 at 19:10.

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    Remind me again, what is the hardware tuner configuration?

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    Quote Originally Posted by abu baniaz View Post
    Remind me again, what is the hardware tuner configuration?
    4 dvb-t2 hybrid tuners, (and one Sundtek usb t2 tuner).

    Tuner D is disabled as 4 cannot record together.
    The symptom with all 4 hybrids enabled and recording is that a tuner (usually C) stops working with tuner failed, rather than picture breakup.

    One other thing I've noticed, when I check which tuners are in use, one channel may say AB and another just B.

    Sorry it's so vague, but these inconsistencies are making it even harder for me to work out exactly what's going on.

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    Just checked last night's cycling on itv4, started at 22:00, unwatchable.

    bbc1 hd recording at 21:00-22:00 absolutely fine.

    Something went drastically wrong earlier in the evening and didn't recover.

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    Try a different skin which will show you the tuners.

    Remember, the tuner in use will change.

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    These are your services split by frequency. Recording one and selecting another will force usage of another tuner.



    Code:
    t:eeee0000:104f:233a,t:482000000:0:1:0:2:1:0:0:0:0:0:0
    "BBC FOUR"
    "BBC ONE Yk&Li"
    "BBC Parliament"
    "BBC Red Button"
    "BBC TWO"
    "CBeebies"
    "BBC 6 Music"
    "BBC Asian Net."
    "BBC Humberside"
    "BBC Lincolnshire"
    "BBC Norfolk"
    "BBC Nottingham"
    "BBC R1X"
    "BBC R5L"
    "BBC R5SX"
    "BBC Radio 1"
    "BBC Radio 2"
    "BBC Radio 3"
    "BBC Radio 4 Ex"
    "BBC Radio 4"
    "BBC Sheffield"
    "BBC World Sv."
    Code:
    t:eeee0000:201b:233a,t:506000000:0:1:0:2:1:0:0:0:0:0:0
    "Freeview"
    "Channel 4"
    "Channel 4+1"
    "Channel 5"
    "E4"
    "Film4"
    "ITV +1"
    "ITV"
    "ITV2"
    "ITV3"
    "ITV4"
    "More 4"
    "Sewing Quarter"
    Code:
    t:eeee0000:3006:233a,t:545833000:0:2:0:2:1:0:0:0:0:0:0
    "365 Travel"
    "Arise News"
    "Asia TV"
    "Box Nation"
    "CCTV"
    "CONNECT 4"
    "Juwelo UK"
    "Ketchup TV"
    "Loveworld"
    "Planet Knowledge"
    "Racing UK"
    "Sonlife"
    "Sports Channel Network"
    "Television X"
    "VisionTV"
    "5 USA"
    "5SELECT"
    "5STAR"
    "695"
    "696"
    "ADULT Party"
    "ADULT Section"
    "ADULT Studio 66"
    "ADULT Xpanded TV"
    "Blaze"
    "Blaze+1"
    "CBS Reality"
    "CITV"
    "Channel 5+1"
    "Drama"
    "Hochanda"
    "Horror Channel"
    "ITV2 +1"
    "ITV3"
    "ITV3+1"
    "ITV4+1"
    "ITVBe"
    "ITVBe+1"
    "QUEST"
    "QUEST+1"
    "QVC"
    "TCC"
    "The Store"
    "True Entertainment"
    "Absolute Radio"
    "Capital"
    "Heart"
    Code:
    t:eeee0000:4089:233a,t:530000000:0:5:5:0:3:4:4:2:0:1:0
    "530000 SID 0x4cc0"
    "Film4+1"
    "Film4+1"
    "BBC ONE HD",c:0019c9,c:0319c9,c:051,c:1219ca
    "BBC TWO HD"
    "CBBC HD"
    "Channel 4 HD"
    "Channel 5 HD"
    "ITV HD"
    Code:
    t:eeee0000:5040:233a,t:730000000:0:2:0:2:1:0:0:0:0:0:0
    "Kiss Me TV"
    "Proud Dating"
    "697"
    "ADULT smileTV3"
    "Challenge"
    "Create & Craft"
    "Dave"
    "E4+1"
    "Food Network"
    "Gems TV"
    "Pick"
    "Quest Red"
    "Really"
    "Sky News"
    "Sony Crime Channel"
    "Sony Movie Ch"
    "TBN UK"
    "TJC"
    "YourTV"
    "movies4men"
    "truTV"
    "RNIB Connect"
    "talkSPORT"
    Code:
    t:eeee0000:6040:233a,t:785833000:0:2:0:2:1:0:0:0:0:0:0
    "4Music"
    "4seven"
    "5Spike"
    "698"
    "ADULT Babestn"
    "ADULT Section"
    "ADULT smileTV2"
    "CBS Action"
    "CBS Drama"
    "Dave ja vu"
    "Home"
    "Ideal World"
    "Jewellery Maker"
    "POP"
    "QVC Beauty"
    "QVC Style"
    "RT"
    "Sewing Quarter"
    "TalkingPictures TV"
    "Travel Channel"
    "True Movies"
    "Yesterday"
    "Classic FM"
    "Hits Radio"
    "KISS FRESH"
    "KISS"
    "KISSTORY"
    "Kerrang!"
    "LBC"
    "Magic"
    "Premier Radio"
    "Smooth Radio"
    "heat"
    Code:
    t:eeee0000:8001:233a,t:522000000:0:2:0:0:1:0:0:0:0:0:0
    "ESTUARY"
    "POP Max"
    "Sony Crime Channel +1"
    "Sony Crime Channel"
    "Sony Movie Channel+1"
    "The Vault"
    "Tiny Pop"
    "truTV"
    Code:
    t:eeee0000:a000:233a,t:570000000:0:5:5:0:3:4:4:2:0:1:0
    "Bollywood HD"
    "5Spike+1"
    "5USA+1"
    "CBS Reality +1"
    "Keep It Country"
    "Pick+1"
    "Quest Red+1"
    "Travelxp"
    "Vintage TV"
    "CBS Action+1"
    "VIVA"
    "4seven HD"
    "Al Jazeera Eng HD"
    "BBC NEWS HD"
    "Channel 4+1 HD"
    "RT HD"
    "Trans World Radio"
    Code:
    t:eeee0000:b000:233a,t:586000000:0:5:5:0:3:4:4:2:0:1:0
    "5STAR+1"
    "Forces TV"
    "FreeSports"
    "More4+1"
    "PBS America"
    "Rocks & Co 1"
    "Together"
    "BBC FOUR HD"
    "BT Showcase HD"
    "CBeebies HD"
    "QVC Beauty HD"
    "QVC HD"

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  13. #11
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    I'll try a bit harder to reproduce the problem, and I'll try 5.1.021 (older drivers) next Sunday to see how that goes.

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    You need to establish a reliable method of creating the problem. Otherwise you will be stabbing in the dark.

    Have a look at your timers.xml file, it should show the services that were recorded and in the order it did them.

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    This is the debug log (5.1.026) when the itv4 recording started.

    I've highlighted the bit I don't like the look of...

    Code:
    < 30809.068> [RecordTimer] Filename calculated as: '/media/hdd/movie/20180610 2158 - ITV4 - Cycling_ Criterium Du Dauphine___'
    < 30809.069> [Navigation] recording service: 1:0:1:208A:201B:233A:EEEE0000:0:0:0:
    < 30809.069> [eDVBResourceManager] allocate channel.. 201b:233a
    < 30809.069> [eDVBResourceManager] available channel.. 4089:233a
    < 30809.069> [eDVBFrontend] opening frontend 1
    < 30809.073> [eDVBFrontend] (1)tune
    < 30809.073> [eDVBFrontend] tune setting type to 2 from 0
    < 30809.073> [eDVBChannel] OURSTATE: tuning
    < 30809.073> [eDVBServicePMTHandler] allocate Channel: res 0
    < 30809.073> [eDVBCIInterfaces] addPMTHandler 1:0:1:208A:201B:233A:EEEE0000:0:0:0:
    < 30809.073> [eDVBChannel] getDemux cap=00
    < 30809.073> [eDVBResourceManager] allocate demux cap=00
    < 30809.073> [eDVBResourceManager] allocating demux adapter=0, demux=1, source=1 fesource=1
    < 30809.073> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.075> [eEPGCache] saveEventToFile epg event id 4b88
    < 30809.075> [RecordTimer] prepare ok, waiting for begin
    < 30809.076> [Trashcan] Recording(s) in progress: 1
    < 30809.079> [eDVBFrontend] startTuneTimeout 5000
    < 30809.079> [eDVBFrontend] setVoltage 0
    < 30809.079> [eDVBFrontend] setFrontend 1
    < 30809.079> [eDVBFrontend] setting frontend 1
    < 30809.108> [eDVBFrontend] (1)fe event: status 0, inversion off, m_tuning 1
    < 30809.320> [eDVBFrontend] (1)fe event: status 1f, inversion off, m_tuning 2
    < 30809.320> [eDVBChannel] OURSTATE: ok
    < 30809.320> [eDVBLocalTimerHandler] channel 0x13fca50 running
    < 30809.320> [eDVBChannel] getDemux cap=00
    < 30809.320> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.321> [eDVBSectionReader] DMX_SET_FILTER pid=20
    < 30809.321> [eEPGCache] channel 0x13fca50 running
    < 30809.321> [eDVBChannel] getDemux cap=00
    < 30809.322> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.322> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.322> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.323> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.324> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.324> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.326> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.326> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.327> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.328> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.328> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.329> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.329> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.330> [eDVBResourceManager] stop release channel timer
    < 30809.330> [eEPGCache] next update in 2 sec
    < 30809.330> [eDVBChannel] getDemux cap=01
    < 30809.330> [eDVBResourceManager] allocate demux cap=01
    < 30809.330> [eDVBResourceManager] allocating shared demux adapter=0, demux=1, source=1
    < 30809.330> [eDVBServicePMTHandler] ok ... now we start!!
    < 30809.330> [eDVBServiceRecord] RECORD service event 5
    < 30809.331> [eDVBCAService] new service 1:0:1:208A:201B:233A:EEEE0000:0:0:0:
    < 30809.331> [eDVBCAService] add demux 1 to slot 0 service 1:0:1:208A:201B:233A:EEEE0000:0:0:0:
    < 30809.331> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.331> [eDVBSectionReader] DMX_SET_FILTER pid=0
    < 30809.332> [eDVBServiceRecord] RECORD service event 6
    < 30809.332> [eDVBServiceRecord] tuned..
    < 30809.332> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.332> [eDVBSectionReader] DMX_SET_FILTER pid=18
    < 30809.333> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30809.334> [eDVBSectionReader] DMX_SET_FILTER pid=0
    < 30810.064> [eDVBLocalTimerHandler] diff is -4
    < 30810.065> [eDVBLocalTimerHandler] diff < 120 .. use Transponder Time
    < 30810.065> [eDVBLocalTimerHandler] set RTC Time
    < 30810.065> [eDVBLocalTimerHandler] update RTC
    < 30810.065> [eDVBLocalTimerHandler] time update to 21:57:37
    < 30810.065> [eDVBLocalTimerHandler] m_time_difference is -4
    < 30810.065> [eDVBLocalTimerHandler] slewing Linux Time by -04 seconds
    < 30810.066> [eDVBChannel] getDemux cap=00
    < 30811.335> [eEPGCache] start caching events(1528664262)
    < 30811.335> [eDVBSectionReader] DMX_SET_FILTER pid=18
    < 30811.335> [eDVBSectionReader] DMX_SET_FILTER pid=18
    < 30811.336> [eDVBSectionReader] DMX_SET_FILTER pid=18
    < 30813.335> [eDVBDemux] open demux /dev/dvb/adapter0/demux1
    < 30813.335> [eDVBSectionReader] DMX_SET_FILTER pid=17
    < 30815.836> [eDVBScan] the current channel's ID was not corrected - not adding channel.
    < 30815.836> [eDVBServicePMTHandler] ignore sdt update data.... incorrect transponder tuned!!!
    < 30815.836> [eDVBServicePMTHandler] incorrect namespace. expected: eeee0000 current: ffffffff
    < 30815.836> [eDVBServicePMTHandler] incorrect transport_stream_id. expected: 201b current: ffffffff
    < 30815.836> [eDVBServicePMTHandler] incorrect namespace. expected: 233a current: ffffffff
    < 30821.552> [eDVBVideo0] VIDEO_GET_EVENT PROGRESSIVE_CHANGED 1
    < 30822.055> [VideoHardware] setting aspect: 16:9
    < 30822.056> [VideoHardware] setting wss: auto
    < 30822.057> [VideoHardware] setting policy: panscan
    < 30822.058> [VideoHardware] setting policy2: letterbox
    < 30822.811> [eDVBVideo0] VIDEO_GET_EVENT PROGRESSIVE_CHANGED 0
    < 30823.315> [VideoHardware] setting aspect: 16:9
    < 30823.316> [VideoHardware] setting wss: auto
    < 30823.316> [VideoHardware] setting policy: panscan
    < 30823.317> [VideoHardware] setting policy2: letterbox
    < 30829.077> [RecordTimer] activating state 2
    < 30829.078> [RecordTimer] start recording
    < 30829.080> [Notifications] AddPopup, id = None
    < 30829.092> [Skin] processing screen MessageBoxSimple:
    < 30829.124> [Skin] processing screen MessageBoxSimple_summary:
    < 30829.131> [eDVBServiceRecord] Recording to /media/hdd/movie/20180610 2158 - ITV4 - Cycling_ Criterium Du Dauphine___.ts...
    < 30829.131> [eDVBServiceRecord] start recording...
    < 30829.131> [eDVBServiceRecord] RECORD: have 1 video stream(s) (07d1), and 1 audio stream(s) (07d2), and the pcr pid is 07d1, and the text pid is ffffffff
    < 30829.131> [eDVBServiceRecord] ADD PID: 0000
    < 30829.131> [eDVBServiceRecord] ADD PID: 07d1
    < 30829.131> [eDVBServiceRecord] ADD PID: 07d2
    < 30829.133> [setIoPrio] realtime level 7 ok
    Last edited by ccs; 12-06-18 at 10:00.

  16. #14
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    I'm now able to re-produce the picture breakup, but need to investigate further before giving details.

    I need to eliminate one or 2 things.

    One thing I have noticed is my SundTek usb dvb-c/t2 tuner no longer works (tune failed) - anyone else having problems before I start another thread?

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    SundTek tuner ok today, so please ignore my last comment.

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