2.4.19 -- ac97_codec failure ALi 5451

Peter (cogwepeter@greenie.frogspace.net)
Thu, 9 Jan 2003 18:35:53 -0800 (PST)


Sound fails on 2.4.19 with ALi 5451 built-in audio:

Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro 5050 PCI Audio,
version 0.14.9d, 00:57:19 Jan 9 2003
PCI: Enabling device 00:06.0 (0000 -> 0003)
PCI: Assigned IRQ 10 for device 00:06.0
trident: ALi Audio Accelerator found at IO 0x1000, IRQ 10
ac97_codec: AC97 Audio codec, id: 0x4144:0x5372 (Unknown)
ali: AC97 CODEC read timed out.
last message repeated 127 times
ali: AC97 CODEC write timed out.
ac97_codec: AC97 codec, id: 0x0000:0x0000 (Unknown)

The trident driver was compiled in during this run. lspci --

00:06.0 Multimedia audio controller: Acer Laboratories Inc. [ALi] M5451
PCI AC-Link Controller Audio Device (rev 02)

I've also tried Alsa, and the snd-ali5451 module loads under lengthy
protests from

alsa-kernel/pci/ali5451/ali5451.c:389 ali_codec_ready: codec not ready

The related modules also load and everything looks fine.

No sound in either case, trident or snd-ali5451.

This is a matrix vpr 200A5 laptop running Debian's kernel 2.4.19-5.

I've seen other people have had similar problems; is this a problem with
recent AC-97 codec revisions?

Cheers,
Peter

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