I have a cheap SB128. In Windows XP, the mixer control is barely one pixel off zero and it is loud enough to shake the walls. In Linux, I have to turn it up to about 3/4 before I even hear anything.

I see from cat /proc/asound/card0/ac97#0 that loudness is off. However, I cannot figure out how to turn it on. Anybody have any suggestions?

-b

bigpickle card0 # cat ac97#0
0-0/0: Cirrus Logic CS4297A rev 4

Capabilities     : -headphone out-
DAC resolution   : 20-bit
ADC resolution   : 18-bit
3D enhancement   : Crystal Semi 3D Stereo Enhancement

Current setup
Mic gain         : +20dB [+20dB]
POP path         : pre 3D
Sim. stereo      : off
3D enhancement   : on
Loudness         : off
Mono output      : MIX
Mic select       : Mic1
ADC/DAC loopback : off
Extended ID      : codec=0 rev=0 AMAP DSA=0
Extended status  :
SPDIF Control    : Consumer PCM Category=0x2 Generation=1 Rate=48kHz Enabled

bigpickle card0 # cat ac97#0regs
0:00 = 1990
0:02 = 1111
0:04 = 8606
0:06 = 0006
0:08 = 0000
0:0a = 8000
0:0c = 8006
0:0e = 8046
0:10 = 8606
0:12 = 8606
0:14 = 8707
0:16 = 8606
0:18 = 0000
0:1a = 0505
0:1c = 8c0c
0:1e = 0000
0:20 = 2000
0:22 = 000c
0:24 = 0000
0:26 = 000f
0:28 = 0200
0:2a = 0000
0:2c = bb80
0:2e = 0000
0:30 = 0000
0:32 = bb80
0:34 = 0000
0:36 = 0000
0:38 = 0000
0:3a = 0000
0:3c = 0000
0:3e = 0000
0:40 = 0000
0:42 = 0000
0:44 = 0000
0:46 = 0000
0:48 = 0000
0:4a = 0000
0:4c = 0000
0:4e = 0000
0:50 = 0000
0:52 = 0000
0:54 = 0000
0:56 = 0000
0:58 = 0000
0:5a = 0404
0:5c = 0000
0:5e = 0080
0:60 = 0022
0:62 = 0000
0:64 = 0000
0:66 = 0000
0:68 = 8824
0:6a = 0000
0:6c = 0000
0:6e = 0000
0:70 = 0000
0:72 = 0000
0:74 = 0000
0:76 = 0000
0:78 = 007a
0:7a = 0000
0:7c = 4352
0:7e = 5914


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state.AudioPCI {
        control.1 {
                comment.access 'read write'
                comment.type ENUMERATED
                comment.item.0 'port 0x200'
                comment.item.1 'port 0x208'
                comment.item.2 'port 0x210'
                comment.item.3 'port 0x218'
                iface CARD
                name 'Joystick Address'
                value 'port 0x200'
        }
        control.2 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface CARD
                name 'Joystick Enable'
                value false
        }
        control.3 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Master Playback Switch'
                value true
        }
        control.4 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 63'
                iface MIXER
                name 'Master Playback Volume'
                value.0 46
                value.1 46
        }
        control.5 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Headphone Playback Switch'
                value false
        }
        control.6 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'Headphone Playback Volume'
                value.0 25
                value.1 25
        }
        control.7 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Master Mono Playback Switch'
                value true
        }
        control.8 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'Master Mono Playback Volume'
                value 25
        }
        control.9 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'PC Speaker Playback Switch'
                value false
        }
        control.10 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 15'
                iface MIXER
                name 'PC Speaker Playback Volume'
                value 15
        }
        control.11 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Phone Playback Switch'
                value false
        }
        control.12 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'Phone Playback Volume'
                value 25
        }
        control.13 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Mic Playback Switch'
                value false
        }
        control.14 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'Mic Playback Volume'
                value 25
        }
        control.15 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Mic Boost (+20dB)'
                value true
        }
        control.16 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Line Playback Switch'
                value false
        }
        control.17 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'Line Playback Volume'
                value.0 25
                value.1 25
        }
        control.18 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'CD Playback Switch'
                value false
        }
        control.19 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'CD Playback Volume'
                value.0 25
                value.1 25
        }
        control.20 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Video Playback Switch'
                value false
        }
        control.21 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'Video Playback Volume'
                value.0 24
                value.1 24
        }
        control.22 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Aux Playback Switch'
                value false
        }
        control.23 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'Aux Playback Volume'
                value.0 25
                value.1 25
        }
        control.24 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'PCM Playback Switch'
                value true
        }
        control.25 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 31'
                iface MIXER
                name 'PCM Playback Volume'
                value.0 31
                value.1 31
        }
        control.26 {
                comment.access 'read write'
                comment.type ENUMERATED
                comment.item.0 Mic
                comment.item.1 CD
                comment.item.2 Video
                comment.item.3 Aux
                comment.item.4 Line
                comment.item.5 Mix
                comment.item.6 'Mix Mono'
                comment.item.7 Phone
                iface MIXER
                name 'Capture Source'
                value.0 Mix
                value.1 Mix
        }
        control.27 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'Capture Switch'
                value false
        }
        control.28 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 15'
                iface MIXER
                name 'Capture Volume'
                value.0 12
                value.1 12
        }
        control.29 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name '3D Control - Switch'
                value true
        }
        control.30 {
                comment.access 'read write'
                comment.type ENUMERATED
                comment.item.0 Mix
                comment.item.1 Mic
                iface MIXER
                name 'Mono Output Select'
                value Mix
        }
        control.31 {
                comment.access 'read write'
                comment.type ENUMERATED
                comment.item.0 Mic1
                comment.item.1 Mic2
                iface MIXER
                name 'Mic Select'
                value Mic1
        }
        control.32 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 15'
                iface MIXER
                name '3D Control - Center'
                value 12
        }
        control.33 {
                comment.access 'read write'
                comment.type INTEGER
                comment.range '0 - 15'
                iface MIXER
                name '3D Control - Depth'
                value 12
        }
        control.34 {
                comment.access read
                comment.type IEC958
                iface MIXER
                name 'IEC958 Playback Con Mask'
                value 
'0fff000f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
        }
        control.35 {
                comment.access read
                comment.type IEC958
                iface MIXER
                name 'IEC958 Playback Pro Mask'
                value 
cf00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
        }
        control.36 {
                comment.access 'read write'
                comment.type IEC958
                iface MIXER
                name 'IEC958 Playback Default'
                value 
'0082000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
        }
        control.37 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'IEC958 Playback Switch'
                value true
        }
        control.38 {
                comment.access 'read write'
                comment.type BOOLEAN
                iface MIXER
                name 'External Amplifier Power Down'
                value false
        }
}

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature



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