Previously I reported on audio issues with Fedora updates affecting the VLF monitoring at omen.com. Unfortunately, recent updates have really messed things up, to the point I may have to consider using a different distro. For quite some time I have been using an Asus pcie audio card for monitoring VLF signals. The computer also has the motherboard audio. During upgrades and/or reboots Fedora would arbitrarily swap the two devices, but I was able to correct the problem by rebooting again or changing the device in Gnuradio. A recent upgrade changed something and I was no longer able to access the Asus card. I disabled the motherboard audio and VLF monitoring was back in business. But then the audio input would spontaneously mute itself every few hours or so. The sound applet shows the input unmuted, but I had to mute and unmute the input audio to get it working. So I added amixer -c 0 sset Line,0 100%,100% unmute cap >/dev/null 2>/dev/null every minute via crontab. This keeps the line from going dead, but now the gain or something randomly changes from time to time. You can see the result at omen.com/vlf12.php I know Linux audio is a mess but an unstable mess is worse. -- Chuck Forsberg WA7KGX N2469R caf@xxxxxxxx www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc "The High Reliability Software" 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
