From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Jander Date: Wed, 23 Feb 2000 19:53:33 +0000 Subject: Onboard synth on Acer AW35 pro with ALSA ... Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sound@vger.kernel.org Hi everyone ! I've got a Acer AW35 pro sound card, which has a (very common) Crystal CS4237B chip plus a wavetable synth onboard (CS9236 or something like that). Using OSS/lite I can use this synth (/dev/sequencer) and it sounds perfectly well. This synth is supposed to be connected in parallel with the external MPU401 interface (logically that is, of course). Now I am trying ALSA 0.5.2, (kernel 2.2.12, sound working OK), and I found a strange problem: I use a sequencer program (Melys for ALSA, or any other) writing to /dev/sequencer, and connecting the ports correctly to the MPU401 driver (using aconnect), I am able to produce sound on a synth connected externally to the MPU401/Joystick connector of the sound card, but the internal Wavetable synth does not produce any sound at all. (Moving each and every slider on the mixer doesn't help either). Does anyone know about this issue ? I may try to connect an oszilloscope to the digital audio signal pins of the wavetable chip (I have already identified these), and see if I can trace any signals crossing the wire, but I'll have to be too desperate to do this :-) That could discard any mixer problems. Any suggestions/help/advice from anyone ? Or should I contact ALSA directly with this issue ? Sincerely, ---------------------------------- David Jander J. Electronics Student, UTFSM, Chile E-Mail : djander@alumnos.utfsm.cl