Re: [linux-audio-dev] recommend a card with the best SPDIF out

From: Jens M Andreasen <jens.andreasen@email-addr-hidden>
Date: Thu Sep 21 2006 - 21:58:48 EEST

On Thu, 2006-09-21 at 17:35 +0200, Frank Barknecht wrote:
> Hallo,
> Andrew Gaydenko hat gesagt: // Andrew Gaydenko wrote:
>
> > Lee, sorry, didn't understand 'function of the host OS and driver'
> > (probably, my English isn't perfect :-)). As I understand a problem,
> > for PCI case proper shielding, clean (on the card) power supply
> > subcircuits and good generator are useful. For USB case - all these
> > and syncing from *own* oscillator.
>
> Forget about USB, unless you're forced to e.g. on a laptop.
>
Talking of which: Today I found an advertisement in my (physical)
mailbox for a laptop in the sub 100 Euro range. I even managed to google
out the sound chipset which is a Realtek ALC260, aka:

0000:00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
Definition Audio Controller

The bad news: It is supported by ALSA buut .... No sound :-D

The good news: Somebody[*] figured out that the (same) chip can be
configured in several ways, and posted a patch for an HP dc7600:

-- sound/pci/hda/patch_realtek.c.orig 2006-08-05 21:13:49.000000000
+1200
+++ sound/pci/hda/patch_realtek.c 2006-08-05 20:33:17.000000000 +1200
@@ -2951,7 +2951,7 @@
{ .pci_subvendor = 0x152d, .pci_subdevice = 0x0729,
.config = ALC260_BASIC }, /* CTL Travel Master U553W */
{ .modelname = "hp", .config = ALC260_HP },
- { .pci_subvendor = 0x103c, .pci_subdevice = 0x3010, .config =
ALC260_HP },
+ { .pci_subvendor = 0x103c, .pci_subdevice = 0x3010, .config =
ALC260_HP_3013 },
{ .pci_subvendor = 0x103c, .pci_subdevice = 0x3011, .config =
ALC260_HP },
{ .pci_subvendor = 0x103c, .pci_subdevice = 0x3012, .config =
ALC260_HP },
{ .pci_subvendor = 0x103c, .pci_subdevice = 0x3013, .config =
ALC260_HP_3013 },

(This is not the exact machine I was looking at though!)

Is this patch back in the trunk by now? Hi profiled projects like
Apache, Linux, Mozilla and also ALSA sometimes suffers from alienation
away from the grassroots :-/

mvh // Jens M andreasen

[*] http://www.mattb.net.nz/blog/category/linux/
Received on Fri Sep 22 08:15:11 2006

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