On Wed, 12 Dec 2001 19:35:43 +0100
Örjan Persson <[EMAIL PROTECTED]> wrote:
>
> hey,
>
> I've been using alsa 0.4 for a year or so with
> my CS4236 card, builtin on the board. It's a dell
> OptiPlex GX1 computer running Debian Sid.
>
> Now I upgraded my kernel to 2.4.16, added devfs
> support, kernel auto loader. I got audio support
> compiled into the kernel. And then I compiled
> alsa 0.9+0beta9-1, with PNP support. (I also
> got PNP + ISA PNP in the kernel).
>
> Then I converted my settings to the 1.0 file
> which alsa wanted.
>
> Everthing went smooth, rebooted and the only
> error msg I got in dmesg was:
> ALSA mpu401_uart.c:404: unable to grab IRQ 0
> ALSA card-cs4236.c:499: CS4236+: MPU401 not detected
>From the 0.5.11 INSTALL file in the alsa-driver directory:
snd_mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
So using the 'disable' option should get rid of the error messages. The
MPU-401 UART is only used to communicate with externel MIDI gear attached
to the gameport of the soundcard. If you need it you must try to find out
why it can't get an acceptable IRQ.
> I started alsamixer to boost the volume, and started
> XMMS, it looks like it's playing but no volume. I've
> also tried aplay with an .au file, same there.
Make sure to unmute the relevant channels (the 'm' key, see 'man alsamixer').
> And if I put my volume on the spearker to MAX and
> listens carefully I can hear that it's working too.
<snip>
-Frans
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