LinHES Forums :: View topic - No audio output and volume control doesn't appear on screen

root@mythtv:/etc# v4l2-ctl --all
Driver info:
Driver name : ivtv
Card type : Hauppauge WinTV PVR-350
Bus info : 0000:01:08.0
Driver version: 2050
Capabilities : 0x010700F3
Video Capture
Video Output
VBI Capture
VBI Output
Sliced VBI Capture
Sliced VBI Output
Tuner
Audio
Radio
Read/Write
Format:
Type : Video Capture
Width/Height : 480/480
Pixel Format : MPEG
Field : Interlaced
Bytes per Line: 0
Size Image : 131072
Colorspace : Broadcast NTSC/PAL (SMPTE170M/ITU601)
Format:
Type : Video Output
Width/Height : 480/480
Pixel Format : MPEG
Field : Interlaced
Bytes per Line: 0
Size Image : 131072
Colorspace : Broadcast NTSC/PAL (SMPTE170M/ITU601)
Format:
Type : Sliced VBI Capture
Service Set : cc
Service Line 0: /
Service Line 1: /
Service Line 2: /
Service Line 3: /
Service Line 4: /
Service Line 5: /
Service Line 6: /
Service Line 7: /
Service Line 8: /
Service Line 9: /
Service Line 10: cc / cc
Service Line 11: cc / cc
Service Line 12: cc / cc
Service Line 13: cc / cc
Service Line 14: cc / cc
Service Line 15: cc / cc
Service Line 16: cc / cc
Service Line 17: cc / cc
Service Line 18: cc / cc
Service Line 19: cc / cc
Service Line 20: cc / cc
Service Line 21: cc / cc
Service Line 22: /
Service Line 23: /
I/O Size : 0
Format:
Type : Sliced VBI Output
Service Set : cc
Service Line 0: /
Service Line 1: /
Service Line 2: /
Service Line 3: /
Service Line 4: /
Service Line 5: /
Service Line 6: /
Service Line 7: /
Service Line 8: /
Service Line 9: /
Service Line 10: /
Service Line 11: /
Service Line 12: /
Service Line 13: /
Service Line 14: /
Service Line 15: /
Service Line 16: /
Service Line 17: /
Service Line 18: /
Service Line 19: /
Service Line 20: /
Service Line 21: cc / cc
Service Line 22: /
Service Line 23: /
I/O Size : 2304
Format:
Type : VBI Capture
Sampling Rate : 27000000 Hz
Offset : 248 samples (9.18519e-06 secs after leading edge)
Samples per Line: 1439
Sample Format : GREY
Start 1st Field : 10
Count 1st Field : 12
Start 2nd Field : 273
Count 2nd Field : 12
Video input : 2 (Composite 1)
Video output: 0 (S-Video + Composite)
Audio input : 1 (Line In 1)
Audio output: 0 (A/V Audio Out)
Frequency: 2996 (187.250000 MHz)
Video standard = 0x0000b000
NTSC-M/M-JP/M-KR
Tuner:
Capabilities : 62.5 kHz multi-standard
Frequency range : 44.0 MHz - 958.0 MHz
Signal strength : 0%
Current audio mode : mono
Available subchannels:

Author:	jklein87 [ Fri Feb 09, 2007 1:04 pm ]
Post subject:	No audio output and volume control doesn't appear on screen
I can't get any sound out of my knoppmyth box. The only strange thing that has happened is that the [ and ] keys no longer bring up the audio control, or do anything at all for that matter. Thanks.

Author:	IgorRamone [ Wed Mar 07, 2007 12:51 pm ]
Post subject:
I was wondering if there was a fix for this? I also have the same problem. I am running R5E50 with a PVR-350.

Author:	tjc [ Wed Mar 07, 2007 7:31 pm ]
Post subject:
It's not uncommon. Searching for "pvr350" "alsa" and "mute" should turn up the appropriate directions.

Author:	IgorRamone [ Thu Mar 08, 2007 10:26 am ]
Post subject:
Perhaps I am missing something, but so far I have tried reinstalling Knoppmyth, running alsaconf multiple times (no errors), changing the General setup output settings to all configurations of PCM/Master and ALSA/default as my output. I do not have a modprobe.conf file. I have run alsamixer and unmuted everything and raised the volume across the board and tried capturing sound from both mic and line, and tried both internally controlling sound and using an external program, and I checked the volume in all the recording profiles. My previously recorded shows play fine, new shows and live TV are completely muted. I had been running R5E50 for about a month with no issues, then I had to reboot (not for any problems, just making some network config changes) and after that no volume controls at all. I have downloaded one of the shows that was recorded when I could not hear any sounds to my other PC and watched it, but there really was no sound. Sorry if I come of as angry, but I have been using Knoppmyth for some time now with little or no issues so I just got used to it, so this is getting very frustrating. Thanks for any guidance.

Author:	tjc [ Thu Mar 08, 2007 7:12 pm ]
Post subject:
I meant mute in the ivtv driver which captures and encodes the audio from the input signal... This doesn't have anything to do with the sound card, which isn't used for audio recording with a PVR (MPEG-2 encoder) card... Alsa was just in the search list because it shows up in those threads.

LinHES Forums http://forums.linhes.org/

No audio output and volume control doesn't appear on screen http://forums.linhes.org/viewtopic.php?f=6&t=14099	Page 1 of 1

Author:	IgorRamone [ Fri Mar 09, 2007 2:44 pm ]
Post subject:
I tried using the 'v4l2-ctl -c mute=0', 'v4l2-ctl -d0 -l \|grep mute' and 'v4l2-ctl -d0 -l \|grep vol'. When I list my audio outputs, there is only one, A/V audio out. I will also include this if it helps any: Quote: root@mythtv:/etc# v4l2-ctl --all Driver info: Driver name : ivtv Card type : Hauppauge WinTV PVR-350 Bus info : 0000:01:08.0 Driver version: 2050 Capabilities : 0x010700F3 Video Capture Video Output VBI Capture VBI Output Sliced VBI Capture Sliced VBI Output Tuner Audio Radio Read/Write Format: Type : Video Capture Width/Height : 480/480 Pixel Format : MPEG Field : Interlaced Bytes per Line: 0 Size Image : 131072 Colorspace : Broadcast NTSC/PAL (SMPTE170M/ITU601) Format: Type : Video Output Width/Height : 480/480 Pixel Format : MPEG Field : Interlaced Bytes per Line: 0 Size Image : 131072 Colorspace : Broadcast NTSC/PAL (SMPTE170M/ITU601) Format: Type : Sliced VBI Capture Service Set : cc Service Line 0: / Service Line 1: / Service Line 2: / Service Line 3: / Service Line 4: / Service Line 5: / Service Line 6: / Service Line 7: / Service Line 8: / Service Line 9: / Service Line 10: cc / cc Service Line 11: cc / cc Service Line 12: cc / cc Service Line 13: cc / cc Service Line 14: cc / cc Service Line 15: cc / cc Service Line 16: cc / cc Service Line 17: cc / cc Service Line 18: cc / cc Service Line 19: cc / cc Service Line 20: cc / cc Service Line 21: cc / cc Service Line 22: / Service Line 23: / I/O Size : 0 Format: Type : Sliced VBI Output Service Set : cc Service Line 0: / Service Line 1: / Service Line 2: / Service Line 3: / Service Line 4: / Service Line 5: / Service Line 6: / Service Line 7: / Service Line 8: / Service Line 9: / Service Line 10: / Service Line 11: / Service Line 12: / Service Line 13: / Service Line 14: / Service Line 15: / Service Line 16: / Service Line 17: / Service Line 18: / Service Line 19: / Service Line 20: / Service Line 21: cc / cc Service Line 22: / Service Line 23: / I/O Size : 2304 Format: Type : VBI Capture Sampling Rate : 27000000 Hz Offset : 248 samples (9.18519e-06 secs after leading edge) Samples per Line: 1439 Sample Format : GREY Start 1st Field : 10 Count 1st Field : 12 Start 2nd Field : 273 Count 2nd Field : 12 Video input : 2 (Composite 1) Video output: 0 (S-Video + Composite) Audio input : 1 (Line In 1) Audio output: 0 (A/V Audio Out) Frequency: 2996 (187.250000 MHz) Video standard = 0x0000b000 NTSC-M/M-JP/M-KR Tuner: Capabilities : 62.5 kHz multi-standard Frequency range : 44.0 MHz - 958.0 MHz Signal strength : 0% Current audio mode : mono Available subchannels: Thanks again for helping.

Author:	tjc [ Fri Mar 09, 2007 7:30 pm ]
Post subject:
I seem to remember the 0.8.2 ivtv driver being dumb about that... The 0.10.x drivers are better about it, and also have a number of PVR-350 related fixes. Upgrade directions can be found here: http://www.knoppmythwiki.org/index.php?page=CompileIvtv-0.10.0

Author:	IgorRamone [ Wed Mar 14, 2007 10:37 am ]
Post subject:
I used the article to upgrade ivtv, making sure to run the extra steps for the PVR-350, now after boot my screen colors are all wrong (being mainly red toneS) and I cannot get my mouse to work. Watching live TV still has a large black box in the middle of the screen with no sound, or sound controls. When I connect via SSH or switch to the console I cannot run mythtv-setup (to delete and re-add the PVR-350) due to it saying it cannot connect to the X server. When I try to restart the X Server everything hangs.

Author:	EvilTwin [ Wed Mar 14, 2007 7:21 pm ]
Post subject:
From the wiki page: Quote: If you are using a PVR-350 for video output please see the README for module options you may need to add. Look for the note about "ivtv-fb".

Author:	IgorRamone [ Thu Mar 15, 2007 4:48 am ]
Post subject:
This is the extra steps for the PVR-350 that I was talking about. EvilTwin wrote: From the wiki page: Quote: If you are using a PVR-350 for video output please see the README for module options you may need to add. Look for the note about "ivtv-fb".

Author:	IgorRamone [ Tue Mar 20, 2007 11:36 pm ]
Post subject:
Anyone else have any ideas?

Author:	IgorRamone [ Sun Apr 08, 2007 9:03 pm ]
Post subject:
Anyone? I re-installed Myth and it is giving the same issues. Is something wrong with my capture card?

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