Hello. I have a system which has an on-board HDA-intel card as well as
an M-Audio Delta Audiophile 2496. The M-Audio card is a bit long in
the tooth now, but I really like it, so I keep it around and use it a
lot. This is a Debian `stretch' system with kernel 4.9 and alsa
1.1.3. I use pulse audio to switch from one card to the other as
needed, and all that has been working really well -- until two days
ago.
I booted the system that day and suddenly the M-Audio card had
disappeared -- from alsa and from pulse audio. It's listed by lspci:
05:01.0 Multimedia audio controller: VIA Technologies Inc. ICE1712 [Envy24] PCI Multi-Channel I/O Controller (rev 02)
Subsystem: VIA Technologies Inc. M-Audio Delta Audiophile 2496
Flags: medium devsel, IRQ 19
I/O ports at 2040 [size=32]
I/O ports at 2060 [size=16]
I/O ports at 2070 [size=16]
I/O ports at 2000 [size=64]
Capabilities: [80] Power Management version 1
Kernel modules: snd_ice1712
and the snd_ice1712 module is loaded. But there is no entry for the
card in /proc/asound/cards and none of the devices it normally makes
available is listed in the output of aplay -l (only those provided by
the HDA Intel are listed).
I unloaded the snd_ice1712 module and reloaded it with modprobe and
that produced the following entry in /var/log/kern.log:
Aug 4 12:50:37 branci40 kernel: [13648.777384] invalid CS8427 signature 0xff: let me try again...
Aug 4 12:50:37 branci40 kernel: [13648.777958] unable to find CS8427 signature (expected 0x71, read 0xff),
Aug 4 12:50:37 branci40 kernel: [13648.777960] initialization is not completed
Aug 4 12:50:37 branci40 kernel: [13648.777963] snd_ice1712 0000:05:01.0: CS8427 initialization failed
Aug 4 12:50:37 branci40 kernel: [13648.778050] snd_ice1712: probe of 0000:05:01.0 failed with error -14
Given the age of the card and given how suddenly the failure appeared,
I suspect a hardware failure, but first wanted to check with people
more knowledgeable than me. Is it really believable that a card as
good as this one has been would suffer some crucial hardware failure
between shutdown on Thursday evening and re-boot on Friday morning?
There's a relevant note in the changelog between 1.0.14 and 1.0.15:
- Workaround for invalid signature read of CS8427
Reading the signature of CS8427 over SPI/I2C fails on some devices
by mysterious reason. In most cases, however, it succeeds at the
sequential read. So, let's give a second chance to check the signature
again.
Any advice? Any observations?
Thank you very much,
Jim McCloskey
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