I decided to do a major overhaul of my Myth system. I was running FC4 and MythTV 0.19-fixes but I decided to start over and install Ubuntu Edgy and Myth TV 0.20 (keeping the database and video files though).<br><br>I got most of it done in one night but now I'm spending quite a bit of time on tracking down frustrating issues. I've actually been making reasonable progress but I'm a bit stuck now and looking for any ideas people might have.
<br><br>My most recent issue was that I have a bttv card and an ivtv card. Sometimes the ivtv would be /dev/video0 and other times it would be /dev/video1. I added something to /etc/modprobe.d to try and sort that out and it seems to work. But now I don't have any audio. I'm sure the audio is working because I can hear sounds from the Gnome desktop. But when I run 'mplayer /dev/video0' or try to watch live TV from Myth, I don't hear anything. I have confirmed that the frontend can produce sound by watching an old recording so it would appear that the issue can be narrowed down to the output from /dev/video0?!?
<br><br>Under the Audio settings in the front end, I have:<br><br>Output device: /dev/dsp<br>passthrough device: default<br>mixer device: /dev/mixer<br><br>I assume these are all irrelevant since "mplayer /dev/video0" has no sound either, correct?
<br><br>I tried Googling on this, but there were a bunch of sound issues with the PVR-150 back in IVTV-0.4.0 and I can't find anything relevant because of all the hits I get related to those issues.<br><br>I tried the alsamixer (
i.e. I unmuted things and turned stuff up...no effect).<br><br>Here is the output from "ivtvctl --log-status" if that helps (I'm doing NTSC capture).<br><br>ioctl VIDIOC_LOG_STATUS ok<br> [17181743.720000] ivtv0: ================= START STATUS CARD #0 =================
<br> [17181743.756000] tveeprom 0-0050: Hauppauge model 26032, rev C182, serial# 7935420<br> [17181743.756000] tveeprom 0-0050: tuner model is LG TAPC H791F (idx 82, type 39)<br> [17181743.756000] tveeprom 0-0050: TV standards NTSC(M) (eeprom 0x08)
<br> [17181743.756000] tveeprom 0-0050: audio processor is CX25841 (idx 35)<br> [17181743.756000] tveeprom 0-0050: decoder processor is CX25841 (idx 28)<br> [17181743.756000] tveeprom 0-0050: has no radio, has IR remote
<br> [17181743.756000] tuner 0-0061: Tuner mode: analog TV<br> [17181743.756000] tuner 0-0061: Frequency: 67.25 MHz<br> [17181743.756000] tuner 0-0061: Standard: 0x0000b000<br> [17181743.772000] cx25840 0-0044: Video signal: present
<br> [17181743.772000] cx25840 0-0044: Detected format: NTSC-M<br> [17181743.772000] cx25840 0-0044: Detected audio mode: mono<br> [17181743.772000] cx25840 0-0044: Detected audio standard: no detected audio standard
<br> [17181743.772000] cx25840 0-0044: Audio muted: no<br> [17181743.772000] cx25840 0-0044: Audio microcontroller: stopped<br> [17181743.772000] cx25840 0-0044: Configured audio standard: automatic detection
<br> [17181743.772000] cx25840 0-0044: Configured audio system: BTSC<br> [17181743.772000] cx25840 0-0044: Specified standard: NTSC-M<br> [17181743.772000] cx25840 0-0044: Specified video input: S-Video (Luma In1, Chroma In5)
<br> [17181743.772000] cx25840 0-0044: Specified audio input: External<br> [17181743.772000] cx25840 0-0044: Specified audioclock freq: 48000 Hz<br> [17181743.772000] cx25840 0-0044: Preferred audio mode: stereo
<br> [17181743.776000] wm8775 0-001b: Input: 2<br> [17181743.776000] ivtv0: ================== END STATUS CARD #0 ==================<br><br><br><br>Any help would be greatly appreciated. At this point, I feel like I have exhausted my diagnostic possibilities.
<br><br>--<br>Mike<br><br>