From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041111 Firefox/1.0 Description of problem: alsa-lib-1.0.6-3 alsa-utils-1.0.6-3 SBLive sound card. I can enable digital output with alsamixer and pass PCM data to and external reciever but using mplayer -ao alsa -ac hwac3 ... doesn't pass ac3 to the receiver. The audio receiver detects a 5.1 stream but goes in and out so I'm assuming the stream is corrupted somehow. After reinstalling FC2 I can varify that spdif output works fine in fc3. There are no errors in /var/log/messages I wish that I could post some more diagnostic info but there are no errors to report other than ac3 passthrough not working. /etc/modprobe is default from system-config-soundcard and used alsamixer to unmute digital-out. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Install fc3. 2. Enable digital-out with alsamixer 3. PCM fine. No ac3 Actual Results: No ac3 output to external audio receiver. Expected Results: Receiver should have detected a 5.1 ditial signal Additional info: This works just fine in fc2.
Someone else seems to be having the same problem with madrake on a 2.6 kernel...not much info. http://www.linuxquestions.org/questions/history/252317
This seems to be a problem with the stock kernels for fedora core 3. I tried downloading and compiling kernel 2.6.7 and 2.6.10 from kernel.org. Running with these kernels the spdif works perfectly. Also while running core 2 i experienced this problem when upgrading to a new kernel (sorry can't remember which one, think it was 2.6.8-something).
And what about kernel in devel branch? Does it work too?
Seems to be fine now with 2.6.10-1.741smp. You can probably close this.