From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 3 Jul 2001 21:12:54 +0200 To: linuxppc-dev@lists.linuxppc.org Subject: dmasound_pmac has problems with 16 Bit sound on Pismo Message-ID: <20010703211254.D311@jupiter.home.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii From: Matthias Grimm Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hi, I use a Powerbook G3 (Pismo) and the benh-kernel 2.4.5pre6 but I realized the problem also with earlier 2.4 versions. If I use the kernel module dmasound_pmac, I wouldn't be able to play 16 Bit sounds. I realized the problem after an update to KDE 2.1 where the startsound was only noise. After Playing a 16 bit wav sample the artsd has some problems to return to normal work. I consumes 100% cpu and timed out after a while. It seems tht no one tells him the osund is finished. After that I tried bplay with the KDE wav files and discovered that 8 Bit sound were played well, but 16 bit sounds only create noise of roundabout the same lenght the sound would have been played. I gess it could be an endianess problem and I investigated the source a little but couldn't locate the bug. My know little about the Powerbook Hardware and the Kernel-drivers so I hope somebody here could help. With the Kernel 2.2 backport of dmasound, wich I used before I updated to Kernel 2.4, everything was ok. At the moment I use the latest alsa-version, which has a awacs-driver included now. This driver works well, but I would prefer a small well fitted kernel module instead of a large program package. Nevertheless alsa is valuable software. Matthias -- ____________________________________________________________________ Matthias Grimm joker@cymes-bs.de ---- Planung ist der Ersatz des Zufalls durch den Irrtum ----- ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/