alsa issues
Radu Dragomir
radu at aom.ro
Fri May 29 09:46:32 UTC 2009
Hello everyone
I am having problems with a Toshiba L30-10X Laptop.
Everything works fine except the sound system which has 2 problems:
1. Headphones and Speaker channels are swapped
2. The volume on the "speakers" (well headphones in this case) is very
low.
The soundcard uses a snd_hda_intel module and the model name is set to
toshiba in /etc/modprobe.d/alsa-base.conf with the following line:
options snd-hda-intel model=toshiba
System is Ubuntu 9.04
Suplimental info:
00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition
Audio Controller (rev 01)
Subsystem: Toshiba America Info Systems Device ff31
Flags: bus master, slow devsel, latency 64, IRQ 16
Memory at c0000000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+
Queue=0/0 Enable-
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
amixer output
Simple mixer control 'Master',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'Headphone',0
Capabilities: pswitch
Playback channels: Front Left - Front Right
Mono:
Front Left: Playback [on]
Front Right: Playback [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%]
Front Right: Playback 255 [100%]
Simple mixer control 'Front',0
Capabilities: pswitch
Playback channels: Front Left - Front Right
Mono:
Front Left: Playback [on]
Front Right: Playback [on]
Simple mixer control 'Mic',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 23
Mono:
Front Left: Playback 0 [0%] [-36.00dB] [off]
Front Right: Playback 0 [0%] [-36.00dB] [off]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 13
Front Left: Capture 0 [0%] [-6.00dB] [on]
Front Right: Capture 0 [0%] [-6.00dB] [on]
Simple mixer control 'Input Source',0
Capabilities: cenum
Items: 'Mic'
Item0: 'Mic'
cat /proc/asound/cards
0 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xc0000000 irq 16
alsa info
http://www.alsa-project.org/db/?f=abf7f754f6b4dabc25077171234e72a46449be2a
Thank you for help
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