Hi there, I own an ASRock P4i65G motherboard with an onboard Intel 82801EB audio controller. For more than a while I've been trying to get it to work with my 4.0 surround speakers. I've got 3 jacks at the back of the computer - Line-In, Line-Out and Microphone. In The Other System, setting the card to use 4 speakers and connecting the front pair to Line-Out and the rear pair to Line-In works perfectly fine. Yet with ALSA, whatever the configuration was, I could never get _any_ output from the speakers connected to the Line-In jack. The best state I've been able to achieve was setting the "Channel Mode" setting in alsamixer to "6ch" and connecting the rear speakers to the Microphone Jack. Then the output of `speaker-test -c 6 -D plug:surround51' would be: -------------------------------------------------------------------------------- speaker-test 1.0.14 Playback device is plug:surround51 Stream parameters are 48000Hz, S16_LE, 6 channels Using 16 octaves of pink noise Rate set to 48000Hz (requested 48000Hz) Buffer size range from 3 to 5461 Period size range from 3 to 5461 Using max buffer size 5460 Periods = 4 was set period_size = 1365 was set buffer_size = 5460 0 - Front Left <----- correct 4 - Center <----- no sound 1 - Front Right <----- correct 3 - Rear Right <----- sound from the LFE channel 2 - Rear Left <----- sound from the Center channel 5 - LFE <----- no sound -------------------------------------------------------------------------------- This looked like a typical jack swap issue on an ICH5 audio chip (as described e.g. here: http://www.cse.ohio-state.edu/~bondhugu/alsamch.shtml#t). So, I wrote a brand new ~/.asoundrc like this: -------------------------------------------------------------------------------- pcm.reroute { slave.pcm "surround51" slave.channels 6 ttable.0.0 1 ttable.1.1 1 ttable.2.4 1 ttable.3.5 1 ttable.4.2 1 ttable.5.3 1 } -------------------------------------------------------------------------------- And tried `speaker-test -c 6 -D reroute'. As a result, sound was _only_ emitted from the front pair of speakers. The rear pair remained dead. Connecting the rear pair to the Microphone jack resulted in the same effect as earlier - they acted as the Center / LFE speakers (as if ~/.asoundrc had no effect at all). All my configuration details can be found here: http://kempniu.pl/files/alsa-configuration.html If you need any more info, just tell me. ALSA versions are: - alsa-driver: 1.0.14 - alsa-lib: 1.0.14a - alsa-utils: 1.0.14 Any hints would be greatly appreciated! -- Best regards, Michal Kepien ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
