Hi --
The ymfpci driver in the current alsa-cvs release isn't working on
my laptop and hasn't been working since at least December. The OSS
driver in kernel 2.4.9 does work and the driver in alsa-driver-0.5.12a
does work. I'm currently running kernel 2.4.17 with patches on top of
Redhat 7.2.
There aren't any error messages generated during startup or at any
other time, the device appears to start up and appears to work but it
doesn't generate any sound:
Feb 16 09:35:40 elf2 alsasound: Starting sound driver: snd-ymfpci
Feb 16 09:35:40 elf2 kernel: ALSA ../../alsa-kernel/pci/ymfpci/ymfpci.c:130: MPU401
supported on 0xff20
Feb 16 09:35:40 elf2 kernel: PCI: Found IRQ 11 for device 00:0c.0
Feb 16 09:35:40 elf2 kernel: PCI: Sharing IRQ 11 with 00:05.2
Feb 16 09:35:40 elf2 alsasound: done
When the sound driver loads during a normal multiuser boot, there is
a sequence of scratching sounds from the builtin speakers, but that's
the last noise that the driver makes.
If I boot up single user, from a warm or cold start, modprobe the
driver, and save the alsa state with alsactl, the following controls
are not in the default mute state, which suggests that the driver is
confused about the hardware it's controlling:
control.25 {
comment.access 'read write'
comment.type BOOLEAN
iface MIXER
name 'Capture Switch'
value true
}
control.34 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 16383'
iface MIXER
name 'Wave Playback Volume'
value.0 16383
value.1 16383
}
control.36 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 16383'
iface MIXER
name 'Digital Capture Volume'
value.0 16383
value.1 16383
}
control.37 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 16383'
iface MIXER
name 'Digital Capture Volume'
index 1
value.0 16383
value.1 16383
}
control.39 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 16383'
iface MIXER
name 'ADC Capture Volume'
value.0 16383
value.1 16383
}
control.42 {
comment.access 'read write'
comment.type INTEGER
comment.range '0 - 16383'
iface MIXER
name 'IEC958 AC97 Playback Volume'
value.0 16383
value.1 16383
}
Several controls, including the ones listed above, cannot be adjusted
successfully in alsamixer or oss based mixers: the mixer reports that
it has muted the channel or changed the level, but the mute state or
channel level is back to its original value when you start the mixer
up again.
-- rec --
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