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Two channels come in clear, the rest static
http://forum.linhes.org/viewtopic.php?f=2&t=4779		 Page 1 of 1
Author:  mrpeaches [ Thu Jun 02, 2005 7:37 pm ]
Post subject:  Two channels come in clear, the rest static
I have a PVR-250 in my KnoppMyth linux box. I set up everything fine, except that only two channels come in, channel 5 and 6. The rest is static. I know the tuner card itself works, because I tested it with Windows and all the channels came in.

How is it possible that the card will work for some channels, but none others? Any help would be appreciated.

My system is at P4 1.6 ghz with 256 megs of ram.
Author:  brendan [ Fri Jun 03, 2005 2:45 pm ]
Post subject:  Re: Two channels come in clear, the rest static
The tuner is probably being set incorrectly.

Try commenting out or removing the tuner designation in the following file

/etc/mythtv/modules/ivtv

-brendan
Author:  mrpeaches [ Fri Jun 03, 2005 11:13 pm ]
Post subject:  Re: Two channels come in clear, the rest static
brendan wrote:
The tuner is probably being set incorrectly.

Try commenting out or removing the tuner designation in the following file

/etc/mythtv/modules/ivtv

-brendan


Commenting out the ivtv file didn't work, the tuner still does that same thing. Here's my ivtv file:

Code:
alias char-major-81 videodev
alias char-major-61 lirc_i2c
#options ivtv debug=1
#options tuner type=39
#options msp3400 once=1 simple=1
install ivtv /sbin/modprobe tuner; /sbin/modprobe msp3400; /sbin/modprobe saa7115;  /sbin/modprobe --ignore-install  ivtv
remove ivtv /sbin/modprobe -r --ignore-remove ivtv && /sbin/modprobe -r saa7115 && /sbin/modprobe -r msp3400 && /sbin/modprobe -r tuner


My card is the Model 980 version of the Hauppauge WinTV-PVR-250 series. It seems like it should be supported by default. Would recompiling a newer version of ivtv help at all?
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Author:  tjc [ Fri Jun 03, 2005 11:34 pm ]
Post subject: 
Don't know.

I'm tempted to leave it at that but I don't have the patience tonight to annoy you into realizing how frustrating it is to have to drag enough detailed information out of people to diagnose their problems... ;-)

P: "Doctor, it hurts."
D: "What hurts?"
P: "Doctor, it hurts real bad!"
D: "What hurts real bad?"
P: "Doctor, why won't you tell me how to make it stop hurting?"
D: "..."

And people wonder why they get told, "Take two asprin and call me in the morning..." :?

Please provide more hardware details (searching the forum will provide many examples of how to do this). Please provide the output of this command: (searching the forum will provide more information on how to diagnose this):
Code:
dmesg | sed -n '/= START INIT IVTV/,/=  END INIT IVTV/p'

In the meantime, please make two searches of the forum and post again in the morning... ;-)
Author:  alien [ Sat Jun 04, 2005 3:11 am ]
Post subject: 
... also, what version of knoppmyth are you using? Commenting out the tuner type only really works in R5. If you are using R4, I think you are down to trial and error (search the older posts for some possible values to try). Alternatively, just install the latest R5.

Allen
Author:  mrpeaches [ Sun Jun 05, 2005 11:46 am ]
Post subject: 
Sorry for not doing this before, here's some more detail about my setup:

KnoppMyth version: R5A15
I have a Dell Dimension 4300
1.6 GHz P4 with 256mb RAM
Video Card: GeForce 2 MX with TV-out

Here's the output of the "dmesg | sed -n '/= START INIT IVTV/,/= END INIT IVTV/p'" command:

Code:
ivtv: ==================== START INIT IVTV ====================
ivtv: version 0.2.0 (rc3j) loading
ivtv: Linux version: 2.6.11.7-chw-4 SMP preempt 586 gcc-3.3
ivtv: In case of problems please include the debug info
ivtv: between the START INIT IVTV and END INIT IVTV lines when
ivtv: mailing the ivtv-devel mailinglist.
ivtv: Autodetected WinTV PVR 250 card
ivtv: Found an iTVC16 based chip
ACPI: PCI interrupt 0000:02:0a.0[A] -> GSI 19 (level, low) -> IRQ 19
ivtv: XXX PCI device: 0x1a30 vendor: 0x8086
ivtv: i2c attach [client=(tuner unset),ok]
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
msp34xx: ivtv version
msp34xx: init: chip=MSP3445G-B8, has NICAM support, simple (D) mode, simpler (G) no-thread mode
msp34xx: $Id$ compiled on: Apr 29 2005 04:01:00
ivtv: i2c attach [client=MSP3445G-B8,ok]
saa7115: starting probe for adapter ivtv i2c driver #0 (0x10005)
saa7115: detecting saa7115 client on address 0x42
saa7115: writing init values
ivtv: i2c attach [client=saa7115[0],ok]
saa7115: status: (1E) 0x48, (1F) 0xc0
eth0: no IPv6 routers present
ivtv: i2c attach [client=tveeprom,ok]
tveeprom: Hauppauge: model = 32062, rev = C182, serial# = 7913616
tveeprom: tuner = LG TAPC H791F (idx = 82, type = 39)
tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2 = 0x00001000)
tveeprom: audio_processor = MSP3445 (type = 12)
ivtv: Tuner Type 39, Tuner formats 0x00001000, Radio: yes, Model 0x008d1612, Revision 0x00000001
ivtv: NTSC tuner detected
ivtv: Radio detected
ivtv: Encoder revision: 0x02040011
ivtv: Configuring WinTV PVR 250 card with 5 streams
ivtv: Create DMA stream 0 using 256 16384 byte buffers  4194304 kbytes total
ivtv: Registered v4l2 device, streamtype 0 minor 0
ivtv: Create DMA stream 1
ivtv: Registered v4l2 device, streamtype 1 minor 32
ivtv: Create stream 2 using 40 52224 byte buffers  2097152 kbytes total
ivtv: Registered v4l2 device, streamtype 2 minor 224
ivtv: Create DMA stream 3 using 455 4608 byte buffers  2097152 kbytes total
ivtv: Registered v4l2 device, streamtype 3 minor 24
ivtv: Create stream 4
ivtv: Registered v4l2 device, streamtype 4 minor 64
ivtv: Setting Tuner 39
tuner 1-0061: type set to 39 (LG NTSC (newer TAPC series))
saa7115: decoder set input (4)
saa7115: now setting Composite input
ivtv: Setting audio matrix to input 3, output 1
ivtv: Switching standard to NTSC.
ivtv: ivtv_enc_thread: pid = 2989, itv = 0xe1112aa0
saa7115: decoder set norm NTSC
saa7115: set audio: 0x01
ivtv: Initialized WinTV PVR 250, card #0
ivtv: ====================  END INIT IVTV  ====================


My tuner video input is set to 4 with the '/usr/bin/ivtvctl -p 4' command. I just get a black screen with any other input setting.
I use Tuner0 for my video feed since I'm using coax cable.
My NTSC resolution is set to 720x480.

Doing a '/bin/lspci -v' command, It seems like its detected properly:
Code:
0000:02:0a.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
   Subsystem: Hauppauge computer works Inc. WinTV PVR 250
   Flags: bus master, medium devsel, latency 64, IRQ 19
   Memory at f8000000 (32-bit, prefetchable) [size=64M]
   Capabilities: [44] Power Management version 2


Doing 'grep tveeprom: /var/log/messages' shows:
Code:
Jun  2 21:29:41 mythtv kernel: tveeprom: Hauppauge: model = 32062, rev = C182, serial# = 7913616
Jun  2 21:29:41 mythtv kernel: tveeprom: tuner = LG TAPC H791F (idx = 82, type = 39)
Jun  2 21:29:41 mythtv kernel: tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2 = 0x00001000)
Jun  2 21:29:41 mythtv kernel: tveeprom: audio_processor = MSP3445 (type = 12)


Also, while 2 channels come in crystal clear, the rest are static/snow, but a few have some sound, although distorted.
Author:  tjc [ Sun Jun 05, 2005 2:32 pm ]
Post subject: 
Do you have the right frequency set selected? Some cable systems use us-cable-hrc rather than us-cable, and if you're not on cable you need us-broadcast. BTW - "5 and 6 come in clear everything else is trash" is a familiar problem, a search should find similar cases with solutions...
Author:  mrpeaches [ Sun Jun 05, 2005 10:28 pm ]
Post subject: 
Okay, that worked. Setting it to us-cable-hrc did the trick. Now everything comes in fine.
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