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SubjectRe: 2.4.0-test12-pre4 + cs46xx + KDE 2.0 = frozen system
On Monday 04 December 2000 16:29, Alan Cox wrote:
> > > Crystal 4280/461x + AC97 Audio, version 0.14, 13:39:25 Dec 4 2000
> > > cs461x: Card found at 0xf8ffe000 and 0xf8e00000, IRQ 18
> > > cs461x: Unknown card (FFFFFFFF:FFFFFFFF) at 0xf8ffe000/0xf8e00000, IRQ
> > > 18 ac97_codec: AC97 Audio codec, id: 0x4352:0x5914 (Unknown)
> >
> > This is failing to detect the CS46xx. I assume someone has fiddled with
> > the driver. Does it work correctly on your machine in 2.2.18pre24 ?

2.2.18pre24 works just fine, sound and everything, with KDE 2.0. That's
what I'm running right now. I had to fool around with the reiserfs-3.5.27
patch for one file, but that was no problem.

>
> A follow on question. This may be 2.4 PCI changes. That would mean you
> might want..
>
> --- drivers/sound/cs46xx.c~ Sat Dec 2 01:44:21 2000
> +++ drivers/sound/cs46xx.c Mon Dec 4 22:58:58 2000
> @@ -2534,6 +2534,11 @@
> struct cs_card *card;
> struct cs_card_type *cp = &cards[0];
>
> + if (pci_enable_device(pci_dev)<0)
> + {
> + printk(KERN_ERR "cs461x: unable to enable\n");
> + return -EIO;
> + }
> if ((card = kmalloc(sizeof(struct cs_card), GFP_KERNEL)) == NULL) {
> printk(KERN_ERR "cs461x: out of memory\n");
> return -ENOMEM;

OK, I patched in the above for both 2.4.0-test12-pre4 and pre5, but did not
get any "unable to enable" printk messages appearing in /var/log/messages.

The behavior of course is the same, that is, sound will work under GNOME, but
starting up KDE 2.0 freezes the machine. To get modules to work with
2.4.0-test12-pre5, I had to modify linux/include/linux/module.h, line 348, as
was the case with test12-pre4. This was the patch that was posted to the list
by Mohammad A. Haque. (Put parenthesis around the bare some_struct).

Here are some lines from messages for the three bootups which I tried:

From 2.2.18pre24: (sound works with both KDE 2.0 and GNOME)

Crystal 4280/461x + AC97 Audio, version 0.13, 08:56:46 Dec 5 2000
cs461x: Card found at 0xf8ffe000 and 0xf8e00000, IRQ 18
cs461x: Unknown card (1028:0096) at 0xf8ffe000/0xf8e00000, IRQ 18
ac97_codec: AC97 Audio codec, vendor id1: 0x4352, id2: 0x5914 (Unknown)
From 2.4.0-test12-pre4 with your above patch: (KDE 2.0 freezes)

Crystal 4280/461x + AC97 Audio, version 0.14, 07:16:56 Dec 5 2000
cs461x: Card found at 0xf8ffe000 and 0xf8e00000, IRQ 18
cs461x: Unknown card (FFFFFFFF:FFFFFFFF) at 0xf8ffe000/0xf8e00000, IRQ 18
ac97_codec: AC97 Audio codec, id: 0x4352:0x5914 (Unknown)
From 2.4.0-test12-pre5 with your above patch: (KDE 2.0 freezes)

Crystal 4280/461x + AC97 Audio, version 0.14, 09:25:46 Dec 5 2000
cs461x: Card found at 0xf8ffe000 and 0xf8e00000, IRQ 18
cs461x: Unknown card (FFFFFFFF:FFFFFFFF) at 0xf8ffe000/0xf8e00000, IRQ 18
ac97_codec: AC97 Audio codec, id: 0x4352:0x5914 (Unknown)
I guess my next step is to learn how to set up a Serial Console for further
troubleshooting. Any further help appreciated.

Steven
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