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  • From: baslinux AT lists.ibiblio.org
  • To: baslinux AT lists.ibiblio.org
  • Subject: [BL] laptop CS423X sound
  • Date: Thu, 24 Jun 2010 17:56:21 +0000 (UTC)

IBM Thinkpads 560X (266MHz), 600E (400MHz), 770E (266MHz) have CS4237B, and other laptops of this era also have CS4232 36 37 38.

Sound works perfectly (and sounds nice on the 770E) in Win95.

These ISA chips require that you supply parameters.
Online instructions suggest dma=0 dma2=1, which appears to work but no sound and DRQ/IRQ conflict. (I think it works with ISA desktop cards).

I disabled quick boot in setup as instructed at one site, but that apparently only affects isapnp cards, where something gets confused.

I tried sbpro emulation - soundcore sound sb io=0x220 irq=5 dma=1
and this works except timidity sounds very bad and mplayer gives errors. sox 'play' and mpg123 work.

I then tried dma=1 no dma1 with cs4232 and it works, then I added dma2=5 (2 also works, did not try 3 or 4) and it also works. Apparently dma 0 is taken already, though /proc/ioports lists only dma 1 and 3 for Crystal (tho I used 1 and 5).

insmod soundcore
(for 2.2 kernel also insmod soundlow)
insmod sound
insmod ad1848
insmod uart401
insmod opl3 io=0x388 (needed only for FM synthesis which I did not test)
insmod cs4232 io=0x540 irq=5 dma=1 dma2=5
(optionally also mpuio=0x330 mpuirq=9 if your laptop has a midi port)

This chip never works in Puppy Linux. I will attempt to specify
dma in some file (wonder which one).

opl3sa2 has never worked for me.

Sindi Keesan



  • [BL] laptop CS423X sound, baslinux, 06/24/2010

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