[ALSA - driver 0001011]: ALSA doesnt sense connected headphones

bugtrack
2006-01-12T03:21:52Z

The following issue has been CLOSED
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<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1011>
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Reported By: rmrfchik
Assigned To:
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Project: ALSA - driver
Issue ID: 1011
Category: PCI - intel8x0
Reproducibility: always
Severity: tweak
Priority: normal
Status: closed
Distribution: Debian
Kernel Version: 2.6.10-1
Resolution: open
Fixed in Version:
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Date Submitted: 03-24-2005 17:13 CET
Last Modified: 01-12-2006 04:21 CET
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Summary: ALSA doesnt sense connected headphones
Description:
I have: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
with Realek ALC850 chipset (motherboard gigabyte 8ig1000G Pro).
When connecting headphones to line out (or other any output), I hear line
output (not apmlified).
I think, output to headphone must be amplified.
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tiwai - 03-24-05 19:43
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Attach the content of /proc/asound/card0/codec97#0/* files.

Check the register 0x7a in /proc/asound/card0/codec97#0/ac97#0-0+regs.
How are the bits 6 and 7? According to the datasheet, bit 7 corresponds
to the Front-out amplifier control.

When the driver is compiled with CONFIG_SND_DEBUG=y, you can edit the
register value via this proc file, like

# echo 7a 2092 > /proc/asound/card0/codec97#0/ac97#0-0+regs

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rlrevell - 01-12-06 04:21
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No response

Issue History
Date Modified Username Field Change
======================================================================
03-24-05 17:13 rmrfchik New Issue
03-24-05 17:13 rmrfchik Distribution => Debian
03-24-05 17:13 rmrfchik Kernel Version => 2.6.10-1
03-24-05 19:43 tiwai Note Added: 0004195
01-12-06 04:21 rlrevell Status new => closed
01-12-06 04:21 rlrevell Note Added: 0007580
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