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arts not working on 2.6 (SNDCTL_DSP_SETFMT failed)
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pyro-x
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Joined: 06 Jan 2003
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PostPosted: Mon Apr 05, 2004 3:01 pm    Post subject: arts not working on 2.6 (SNDCTL_DSP_SETFMT failed) Reply with quote

Hi

Recently i reinstaled my iMac with gentoo, and with a 2.6 kernel. Then i emerged the latest kde (3.2.1 masked).

Well, when aRts is starting up i get this message "SNDCTL_DSP_SETFMT failed", i don't remember to have this kind of problem when i was using 2.4 series on the same computer. I've searched about this problem and all i got is that aRts can't work in 16 bit mode on PPC. So, i choosed 8 bit sound on my control panel and voila!, it worked. But i don't see that as the correct solution just a nasty fix. Does anyone experienced the same problem??. Could you get 16 bit sound output from your iMac?.

My sound driver is dmasound_pmac, and this is what i get when it load:

Code:

dmasound_pmac: Awacs/Screamer Codec Mfct: 1 Rev 3
PowerMac Screamer  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


Cheers
Pyro-X
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gordin
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Joined: 11 Oct 2002
Posts: 300
Location: Germany/WI

PostPosted: Wed Apr 07, 2004 9:46 am    Post subject: Reply with quote

Same problem here.
iBook700
Sound becomes where noisy in 8bit.
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rhale314159
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Joined: 14 Dec 2003
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Location: East US

PostPosted: Wed Apr 28, 2004 7:13 am    Post subject: ibook G4 internal microphone Reply with quote

Same problem on ibook G4, 2.6.3 ppc-dev-sources
If I disable powermac DMA support in the kernel config and use only ALSA and the options in the menu below for power mac then 16-bit arts works very well but I am unable to use the internal microphone.
The only way I've found to use the mic is to disable alsa and enable the powermac dma support.
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