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PostPosted: Sun Oct 05, 2014 3:14 pm 
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Joined: Fri Mar 30, 2007 1:01 pm
Posts: 21
Location: Santa Ana, CA
I am using a PVR500 in my system.
That worked fine with LinHES 6.
I just installed 8.1.1 on the machine, and while it detects the PVR500, and setup seems to be ok, it does not lock onto any channel.
I'm not sure if this is an issue with LinHES or with the MythTV version that's in 8.1.
dmesg shows:
Code:
[    7.659505] ivtv: Start initialization, version 1.4.3
[    7.659601] ivtv0: Initializing card 0
[    7.659605] ivtv0: Autodetected Hauppauge card (cx23416 based)
[    7.723449] tveeprom 0-0050: Hauppauge model 23552, rev E787, serial# 9926300
[    7.723456] tveeprom 0-0050: tuner model is Samsung TCPN 2121P30A (idx 87, type 70)
[    7.723461] tveeprom 0-0050: TV standards NTSC(M) (eeprom 0x08)
[    7.723466] tveeprom 0-0050: second tuner model is Philips TEA5768HL FM Radio (idx 101, type 62)
[    7.723470] tveeprom 0-0050: audio processor is CX25843 (idx 37)
[    7.723473] tveeprom 0-0050: decoder processor is CX25843 (idx 30)
[    7.723476] tveeprom 0-0050: has radio
[    7.723481] ivtv0: Autodetected WinTV PVR 500 (unit #1)
[    7.746617] cx25840 0-0044: cx25843-24 found @ 0x88 (ivtv i2c driver #0)
[    7.893113] tea5767 0-0060: type set to Philips TEA5767HN FM Radio
[    7.894404] tuner 0-0060: Tuner 62 found with type(s) Radio.
[    7.898887] tuner 0-0061: Tuner -1 found with type(s) TV.
[    7.907574] wm8775 0-001b: chip found @ 0x36 (ivtv i2c driver #0)
[    7.939758] tuner-simple 0-0061: creating new instance
[    7.939765] tuner-simple 0-0061: type set to 70 (Samsung TCPN 2121P30A)
[    7.941261] ivtv0: Registered device video0 for encoder MPG (4096 kB)
[    7.941390] ivtv0: Registered device video32 for encoder YUV (2048 kB)
[    7.941491] ivtv0: Registered device vbi0 for encoder VBI (1024 kB)
[    7.941590] ivtv0: Registered device video24 for encoder PCM (320 kB)
[    7.941685] ivtv0: Registered device radio0 for encoder radio
[    7.941690] ivtv0: Initialized card: WinTV PVR 500 (unit #1)
[    7.941766] ivtv1: Initializing card 1
[    7.941770] ivtv1: Autodetected Hauppauge card (cx23416 based)
[    7.998247] tveeprom 1-0050: Hauppauge model 23552, rev E787, serial# 9926300
[    7.998252] tveeprom 1-0050: tuner model is Samsung TCPN 2121P30A (idx 87, type 70)
[    7.998255] tveeprom 1-0050: TV standards NTSC(M) (eeprom 0x08)
[    7.998258] tveeprom 1-0050: second tuner model is Philips TEA5768HL FM Radio (idx 101, type 62)
[    7.998261] tveeprom 1-0050: audio processor is CX25843 (idx 37)
[    7.998263] tveeprom 1-0050: decoder processor is CX25843 (idx 30)
[    7.998266] tveeprom 1-0050: has radio
[    7.998268] ivtv1: Correcting tveeprom data: no radio present on second unit
[    7.998270] ivtv1: Autodetected WinTV PVR 500 (unit #2)
[    8.002158] cx25840 1-0044: cx25843-24 found @ 0x88 (ivtv i2c driver #1)
[    8.023290] tuner 1-0061: Tuner -1 found with type(s) Radio TV.
[    8.024935] wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #1)
[    8.040199] tuner-simple 1-0061: creating new instance
[    8.040203] tuner-simple 1-0061: type set to 70 (Samsung TCPN 2121P30A)
[    8.041657] ivtv1: Registered device video1 for encoder MPG (4096 kB)
[    8.041757] ivtv1: Registered device video33 for encoder YUV (2048 kB)
[    8.041849] ivtv1: Registered device vbi1 for encoder VBI (1024 kB)
[    8.041931] ivtv1: Registered device video25 for encoder PCM (320 kB)
[    8.041936] ivtv1: Initialized card: WinTV PVR 500 (unit #2)
[    8.041990] ivtv: End initialization
[    8.737438] ivtv0: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
[    8.738117] ivtv1: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
[    8.936990] ivtv0: Encoder revision: 0x02060039
[    8.936997] ivtv1: Encoder revision: 0x02060039
[   12.549452] cx25840 0-0044: loaded v4l-cx25840.fw firmware (16382 bytes)
[   12.551365] cx25840 1-0044: loaded v4l-cx25840.fw firmware (16382 bytes)


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PostPosted: Sun Oct 05, 2014 10:10 pm 
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Joined: Fri Mar 30, 2007 1:01 pm
Posts: 21
Location: Santa Ana, CA
Update: I got it working, with two changes: I disabled Closed captioning, and I am using the S-Video output of my set-top box, connecting to the S-Video input of the PVR-500.
Disabling Closed captioning resulted in getting a lock on the channel, but I still had noise when I selected "Watch TV." With S-Video, I get the actual channel.
The coax cable is ok, it works when connecting directly to the TV. Using the S-Video input is fine for me as well, of course.


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PostPosted: Sun Oct 05, 2014 10:52 pm 
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Joined: Fri Mar 30, 2007 1:01 pm
Posts: 21
Location: Santa Ana, CA
Update 2:
I think I found the main problem:
I have a Perl script to change channels through a serial port connection to the settop box, directv.pl (I am using a serial-to-usb cable to connect to the USB port at the settop box.)
That works fine when I call it from the command line, but from MythTV, the permissions of /dev/ttyS0 seem to be wrong.
I had to allow world to rw: chmod 666 /dev/ttyS0.
If the script fails, MythTV apparently reports the "No lock" error.
This post helped: https://ubuntuforums.org/showthread.php?t=1417532
of course, a reboot reset the setting on /dev/ttyS0. Ii guess I need to modify some udev setting...


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PostPosted: Mon Oct 06, 2014 8:30 am 
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Joined: Fri Jun 11, 2004 7:58 am
Posts: 507
A udev rule may be more complex then needed.
If /dev/ttyS0 is setup for rw by a group I would add the mythtv user to the group.


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PostPosted: Mon Oct 06, 2014 7:39 pm 
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Joined: Fri Mar 30, 2007 1:01 pm
Posts: 21
Location: Santa Ana, CA
Well, it turns out to be a one-liner in udev:
KERNEL=="ttyS[0-9]*", NAME="%k", GROUP="uucp", MODE="0666"


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