Public bug reported:
Binary package hint: linux-image-2.6.20-8-generic
After upgrading vom pre-2.6.20 Kernel the Headphone mixer is removed.
Sound still works but only with internal speaker. The sound from the
speaker gets muted after plugging, but i can't hear anything from the
headphones.
lspci:
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition
Audio Controller (rev 02)
[EMAIL PROTECTED]:/lib/modules$ amixer
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 43
Mono:
Front Left: Playback 35 [81%] [on]
Front Right: Playback 35 [81%] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%] [0.00dB]
Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'LineIn',0
Capabilities: cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Capture channels: Mono
Mono: Capture [off]
Simple mixer control 'Mic Bypass',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 43
Front Left: Capture 20 [47%] [0.00dB] [off]
Front Right: Capture 20 [47%] [0.00dB] [off]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 23
Front Left: Capture 0 [0%] [0.00dB] [on]
Front Right: Capture 0 [0%] [0.00dB] [on]
Simple mixer control 'ExtMic',0
Capabilities: cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Capture channels: Mono
Mono: Capture [on]
** Affects: linux-source-2.6.20 (Ubuntu)
Importance: Undecided
Status: Unconfirmed
--
Feisty Kernel 2.6.20 removes the 'Headphone' ALSA mixer element too
https://launchpad.net/bugs/84956
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