Audio volume poor in Linux, OK in Win2K
I can't seem to get much volume out of my audio controller.
I have a dual-boot system, Win2K/SP4 and Fedora Core 2 (FC2), both with all updates applied. The volume is fine in Win2K. In FC2, even with the volume turned up to 100%, audio output is barely loud enough for voices to be understood. This is true whether using the built-in speakers or with headphones. The lack of volume is *not* application dependant.
Prior to installing FC2, I ran RedHat Linux v9 with the most recent 2.4.x kernel available at that time. The audio volume was also inadaquate in this environment, yet was still fine in Win2K.
I see no errors or warning in my system logs that might indicate any problems with the audio driver in use.
My hardware is a HP Presario 2570us notebook, which has an integrated ALi M5451 audio controller. More detail:
00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link Controller Audio Device (rev 02)
Subsystem: Hewlett-Packard Company: Unknown device 0850
Flags: bus master, medium devsel, latency 64, IRQ 5 I/O ports at 1000
Memory at d4000000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [dc] Power Management version 2
These are the audio-related (kernel v2.6.8) modules seen with lsmod:
snd_ali5451 18888 0 snd_ac97_codec 58500 1 snd_ali5451 snd_pcm 75912 1 snd_ali5451 snd_page_alloc 8584 1 snd_pcm snd_timer 18692 1 snd_pcm snd 42596 4
snd_ali5451,snd_ac97_codec,snd_pcm,snd_timer
soundcore 6624 1 snd
It seems that the Linux audio subsystem is incapable of producing the audio volume that I get in Win2K, at least with this hardware. Is there anything I can do to get more volume in Linux?
Thanks.
Quoted 25 lines · Steve Snyder
I can't seem to get much volume out of my audio controller.
I have a dual-boot system, Win2K/SP4 and Fedora Core 2 (FC2), both with all updates applied. The volume is fine in Win2K. In FC2, even with the volume turned up to 100%, audio output is barely loud enough for voices to be understood. This is true whether using the built-in speakers or with headphones. The lack of volume is *not* application dependant.
Prior to installing FC2, I ran RedHat Linux v9 with the most recent 2.4.x kernel available at that time. The audio volume was also inadaquate in this environment, yet was still fine in Win2K.
I see no errors or warning in my system logs that might indicate any problems with the audio driver in use.
My hardware is a HP Presario 2570us notebook, which has an integrated ALi M5451 audio controller. More detail:
00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link Controller Audio Device (rev 02)
Subsystem: Hewlett-Packard Company: Unknown device 0850
Flags: bus master, medium devsel, latency 64, IRQ 5
I/O ports at 1000
Memory atd4000000(32-bit, non-prefetchable) [size=4K]
Capabilities: [dc] Power Management version 2These are the audio-related (kernel v2.6.8) modules seen with lsmod:
snd_ali5451 18888 0 snd_ac97_codec 58500 1 snd_ali5451 snd_pcm 75912 1 snd_ali5451 snd_page_alloc 8584 1 snd_pcm snd_timer 18692 1 snd_pcm snd 42596 4
Quoted 4 lines
snd_ali5451,snd_ac97_codec,snd_pcm,snd_timer
soundcore 6624 1 sndIt seems that the Linux audio subsystem is incapable of producing the audio volume that I get in Win2K, at least with this hardware. Is there anything I can do to get more volume in Linux?
Yes, play with alsamixer and bump everything to 100% (and unmute it). Mainly I guess you forgot the PCM control.
Some devicecs have "External Amplifier" switch, try that too.
If you are still with problems, please do:
$ alsactl -f current.conf store
and attach current.conf
Kalin.
Signature · 3 lines
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