[mythtv-users] Ubuntu 12.10 / Technotrend 1600

[Alex Monaghan]

PC Config

 

AMD Athlon standard build PC

2 * Technotrend 1600 DVB-S2 cards, 1 * Tevii S480 DVB-S2 card connected to a
dual LNB dish, TT1600's & Tevii tuner to Astra 28.2E and the other Tevii
tuner connected to Astra 19.2E (both LNB's also attached to settop box with
TV)

Ubuntu 12.10 64bit

 

alex at tv:~$ mythbackend --version

Please attach all output as a file in bug reports.

MythTV Version : v0.26.0-144-gc5bd828

MythTV Branch : fixes/0.26

Network Protocol : 75

Library API : 0.26.20130225-1

QT Version : 4.8.3

Options compiled in:

linux profile use_hidesyms using_alsa using_oss using_pulse
using_pulseoutput using_backend using_bindings_perl using_bindings_python
using_bindings_php using_crystalhd using_dvb using_firewire using_frontend
using_hdhomerun using_ceton using_hdpvr using_iptv using_ivtv
using_joystick_menu using_libcec using_libcrypto using_libdns_sd
using_libxml2 using_lirc using_mheg using_opengl_video using_qtwebkit
using_qtscript using_qtdbus using_v4l2 using_x11 using_xrandr using_xv
using_bindings_perl using_bindings_python using_bindings_php
using_mythtranscode using_opengl using_vaapi using_vdpau
using_ffmpeg_threads using_live using_mheg using_libass using_libxml2

 

 

Background

 

This was running Ubuntu 10.10 / Myth 0.24 and not seeing the Tevii card but
was recording well from both TT1600's. The BBC HD channels changed
configuration in October 2012, since the change there was a lot of
pixilation on HD recordings. I tweaked the database tables to match the new
HHC HD settings and also did a channel scan via mytht-setup but picture
quality did not resolve.

 

As 10.10 was old, I upgraded to 12.10 which sparked the Tevii card into life
and upgraded to Myth 0.25. The TT1600's still were pixilating on BBC HD (ITV
HD & C4 HD were fine and remain fine).

 

I've also updated to Myth 0.26 to see if this makes any difference and no
change.

 

Current issue 

 

The TT1600 cards both seem to timeout with lots (hundreds) of the following
entry in /var/log/syslog

 

Apr 18 16:35:12 tv kernel: [81540.704512] saa7146: saa7146 (0)
saa7146_i2c_writeout [irq]: timed out waiting for end of xfer

 

If I run mplayer on the console it gives a tuning timeout message. I can
open the Tevii card OK with mplayer and I can watch TV OK on the settop box,
so the dish is OK.

 

Rebooting or reloading the module with "rmmod budget; modprobe budget"
brings the cards back into life and they can be seen again by mplayer and
mythtv.

 

As both TT1600's timeout I'm ruling out a card failure, also they both
spring into life when the driver module is re-loaded without a power cycle.

 

I'm seeing entries like these in the mythbackend.log

 

Apr 18 15:07:25 tv mythlogserver: mythbackend[5910]: W TVRecEvent
dvbchannel.cpp:381 (CheckOptions) DVBChan(1:/dev/dvb/adapter0/frontend0):
Selected fec_inner parameter unsupported by this driver.

Apr 18 15:07:30 tv mythlogserver: mythbackend[5910]: E TVRecEvent
diseqc.cpp:473 (SetTone) DiSEqCDevTree: FE_SET_TONE
failed#012#011#011#011eno: Operation not permitted (1)

Apr 18 15:07:33 tv mythlogserver: mythbackend[5910]: E TVRecEvent
dvbchannel.cpp:1076 (GetBitErrorRate)
DVBChan(1:/dev/dvb/adapter0/frontend0): Getting Frontend signal error rate
failed.#012#011#011#011eno: Operation not permitted (1)

Apr 18 15:07:33 tv mythlogserver: mythbackend[5910]: W TVRecEvent
dvbsignalmonitor.cpp:90 (DVBSignalMonitor)
DVBSM(/dev/dvb/adapter0/frontend0): Cannot measure Bit Error
Rate#012#011#011#011eno: Operation not permitted (1)

 

Card firmware version is /lib/firmware/dvb-ttpci-01.fw-2622, I've also tried
2624

 

I found a suggestion on PCI latency, suggesting increasing this to >150, but
it has made no difference to the timeout.

 

I don't want to build from scratch as there are lots of recordings that have
built up over the years (mostly Star Trek & Dr Who!)

 

Any suggestions on where else to start looking?

 

 

 

 

Thanks in advance

 

Alex

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