Opened 11 years ago
Closed 11 years ago
Last modified 11 years ago
#7663 closed defect (invalid)
Unable to lock signal via uncommitted diseqc
Reported by: | Owned by: | Janne Grunau | |
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Priority: | minor | Milestone: | unknown |
Component: | MythTV - DVB | Version: | head |
Severity: | medium | Keywords: | uncommitted diseqc |
Cc: | Ticket locked: | no |
Description
I have the following setup: mythtv -> TT-Connect S2-3650 CI -> 8x1 uncommitted diseqc -> LNBs
I was using a 2x1 "super mini" diseqc which worked fine under MythTV configured as either a mini diseqc, or a committed diseqc with 2 ports.
With the new diseqc, scan-s2 works fine - it selects the correct LNB, tunes and finds the correct channels on the satellite. I patched szap-s2 for uncommitted diseqcs and that also locks the signal for each satellite ok.
I configured MythTV for an uncommitted diseqc with 8 ports, but it does not seem to change the switch - I can get a lock on the satellite on the first port, but not any others. mythtv-setup -v channel,extra shows the correct diseqc command being sent - the same one being sent by szap-s2.
(I'll attach the full log) 2009-11-26 09:34:39.702 DiSEqCDevTree: Changing LNB voltage to 18V 2009-11-26 09:34:40.203 DiSEqCDevTree: Resetting DiSEqC bus 2009-11-26 09:34:40.203 DiSEqCDevTree: Sending DiSEqC Command: e0 0 0 2009-11-26 09:34:40.983 DiSEqCDevTree: Changing to DiSEqC switch port 5/8 2009-11-26 09:34:40.983 DiSEqCDevTree: Sending DiSEqC Command: e0 10 39 f4
MythTV Version : 22906M MythTV Branch : trunk Network Protocol : 51 Library API : 0.23.20091122-1 QT Version : 4.5.3 Options compiled in:
linux release using_oss using_alsa using_jack using_backend using_directfb using_dvb using_frontend using_hdhomerun using_hdpvr using_iptv using_ivtv using_joystick_menu using_lirc using_mheg using_opengl_video using_opengl_vsync using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_xvmc using_xvmc_vld using_xvmcw using_bindings_perl using_bindings_python using_opengl using_vdpau using_ffmpeg_threads using_live using_mheg
Attachments (2)
Change History (5)
Changed 11 years ago by
Attachment: | lnbp22-power-enable.diff added |
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If you are trying to replicate my setup, you will need this patch to the s2-liplianin drivers.
comment:1 Changed 11 years ago by
Further investigation shows that my S2-3650 is turning off the LNB power for a time when sending the uncommitted diseqc command :( It's as if the firmware thinks a diseqc 2.0 reply is coming back.
The diseqc will switch, but depending on what is plugged in to the port selected (eg an LNB that takes a bit of power at startup) the processor in the diseqc will run out of power and reset. If I switch to an LNB that is getting power from somewhere else, it works.
this bug can be closed as the fault is not in MythTV (and I will go hunting for firmware updates)
comment:2 Changed 11 years ago by
Resolution: | → invalid |
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Status: | new → closed |
Thank you for reporting back.
comment:3 Changed 11 years ago by
For anyone finding this later, the issue was finally resolved by swapping the power hungry DMS Quad LNBs for better behaved Chess Edition II Quads.
mythtv-setup channel scan through uncommitted 8x1 diseqc