lkml.org 
[lkml]   [2006]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: How to enable bios-disabled soundcard?
Hi,

[CC'ing ALSA list]

On Thu, May 18, 2006 at 05:09:47PM +0300, Meelis Roos wrote:
> Context: IBM X20 laptop with integrated PCI CS4281 soundcard. Loading
> snd_cs4281 gives these messages and registers no alsa device:
>
> ACPI: PCI interrupt for device 0000:00:0b.0 disabled
> CS4281: probe of 0000:00:0b.0 failed with error -5
>
> Error -5 seems to be -EIO.
>
> There is no option ib bios to enable/disable the soundcard and the bios
> is almost the latest (2.23, latest 2.25 fixes only unrelated things by
> changelog).

The mail subject most likely is wrong, since the IRQ message above
doesn't suggest a BIOS issue at all,
since the message is most likely a result of calling snd_cs4281_free()
in failure path, which disables this IRQ again.

> lspci identifies the card as follows (pci ID is the same as in the
> driver):
> 0000:00:0b.0 Multimedia audio controller: Cirrus Logic Crystal CS4281 PCI
> Audio (rev 01)
>
> I tried pci=routeirq. It distributed the interrupts differently but this
> problem did remain.

I believe that it's a simple hardware mismatch failure in the main probe
function of this driver, nothing else.

> So how can I enable the soundcard?

The best way to find out is to edit snd_cs4281_probe() and add snd_printk()s
at all error paths to find the one which actually fails.

Andreas Mohr
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-05-18 17:17    [W:0.040 / U:0.452 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site