From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 4 Apr 2002 21:47:39 +0200 From: Albrecht Dre? To: Linuxppc-dev Subject: Awacs Burgundy sound w/ 2.4.18? Message-ID: <20020404194739.GE30247@regulus> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=ISO-8859-15 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: [I already posted this to the users list, but apparently nobody had a solution...] I upgraded an old rev. 1 iMac (bondi blue) to 2.4.18 from kernel.org, and this somehow broke sound support. Everything used to work with 2.2.17pre-something, and the *same* mixer/xmms/cd player config now stays silent on both the headphones and the built in speakers; even the console beep doesn't work. Also, it is not possible to change any settings using aumix or any other mixer program (xmixer, gmix). I add some further information below and hope that somebody can give me hints to resolve the problem. Any help is really welcome!!! Thanks in advance, Albrecht. ~~~~~~~~~~ The dma sound driver is built into the kernel, and it is recognised upon startup (2.4.18 from kernel.org, built w/ gcc 2.95.3). However, I got the same results with the sound stuff built as modules: ----- PowerMac Burgundy DMA sound driver rev 016 installed Core driver edition 01.06 : PowerMac Built-in Sound driver edition 00.07 Write will use 4 fragments of 32768 bytes as default Read will use 4 fragments of 32768 bytes as default ----- Roughly the same kernel config works with an Awacs PowerMac 7300 (seems as if a have a collection of old machines ;-)). The output of /dev/sndstat looks a little strange to me: ----- [root@island /root]# cat /dev/sndstat PowerMac Burgundy DMA sound driver rev 016 : Core driver edition 01.06 : PowerMac Built-in Sound driver edition 00.07 44100 s: s/sec HW AFMTS: signed 16 bit BE signed 16 bit LE === Formats & settings === Parameter soft hard Format : signed 16 bit LE signed 16 bit BE Samp Rate: 44100 s/sec 44100 s/sec Channels : mono stereo === Sound Queue status === Allocated: Buffers Size write: 4 32768 read: 0 0 Current : MaxFrg FragSiz MaxAct Frnt Rear Cnt RrSize A B S L xruns write: 4 4096 4 0 -1 0 0 0 0 0 0 5 read: 0 0 0 0 0 0 0 0 0 0 0 0 ----- Finally, here is the constant output of aumix (== any attempt to change settings is ignored silently): ----- [root@island /root]# aumix -q vol 100, 100 speaker 0, 99 line 100, 100, P mic 0, 0, P cd 100, 100, P pcm2 76, 0 ----- -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Albrecht Dreß - Johanna-Kirchner-Straße 13 - D-53123 Bonn (Germany) Phone (+49) 228 6199571 - mailto:albrecht.dress@arcor.de _________________________________________________________________________ ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/