Re: [Alsa-user] Low volume on Dell XPS M1530

[stan <ghj...@co...>]

Anders Rønningen wrote:
> Below is the section with Mixer controls and volume ranges from my 
> alsa-info run. How can I get info on the max values for my card? I'll 
> make a post on alsa-devel as well.
>
> --
> Anders
>
> !!-------Mixer controls for card 0 [Intel]
>
> Simple mixer control 'Master',0
>   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
>   Playback channels: Mono
>   Limits: Playback 0 - 127
>   Mono: Playback 62 [49%] [-48.75dB] [on]
> Simple mixer control 'Headphone as Line Out',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: 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%] [0.00dB]
>   Front Right: Playback 255 [100%] [0.00dB]
> Simple mixer control 'Front',0
>   Capabilities: pvolume pswitch
>   Playback channels: Front Left - Front Right
>   Limits: Playback 0 - 127
>   Mono:
>   Front Left: Playback 127 [100%] [0.00dB] [on]
>   Front Right: Playback 127 [100%] [0.00dB] [on]
> Simple mixer control 'Surround',0
>   Capabilities: pvolume pswitch
>   Playback channels: Front Left - Front Right
>   Limits: Playback 0 - 127
>   Mono:
>   Front Left: Playback 118 [93%] [-6.75dB] [off]
>   Front Right: Playback 0 [0%] [-95.25dB] [off]
> Simple mixer control 'Center',0
>   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
>   Playback channels: Mono
>   Limits: Playback 0 - 127
>   Mono: Playback 127 [100%] [0.00dB] [off]
> Simple mixer control 'LFE',0
>   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
>   Playback channels: Mono
>   Limits: Playback 0 - 127
>   Mono: Playback 127 [100%] [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 - 14
>   Front Left: Capture 11 [79%] [16.50dB] [off]
>   Front Right: Capture 11 [79%] [16.50dB] [off]
> Simple mixer control 'Capture',1
>   Capabilities: cvolume cswitch
>   Capture channels: Front Left - Front Right
>   Limits: Capture 0 - 14
>   Front Left: Capture 0 [0%] [0.00dB] [off]
>   Front Right: Capture 0 [0%] [0.00dB] [off]
> Simple mixer control 'Capture',2
>   Capabilities: cvolume cswitch
>   Capture channels: Front Left - Front Right
>   Limits: Capture 0 - 14
>   Front Left: Capture 0 [0%] [0.00dB] [off]
>   Front Right: Capture 0 [0%] [0.00dB] [off]
> Simple mixer control 'Analog Loopback',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [off]
> Simple mixer control 'Digital',0
>   Capabilities: cvolume
>   Capture channels: Front Left - Front Right
>   Limits: Capture 0 - 120
>   Front Left: Capture 120 [100%] [30.00dB]
>   Front Right: Capture 120 [100%] [30.00dB]
> Simple mixer control 'Digital Input Source',0
>   Capabilities: enum
>   Items: 'Analog Inputs' 'Digital Mic 1'
>   Item0: 'Digital Mic 1'
> Simple mixer control 'Input Source',0
>   Capabilities: cenum
>   Items: 'Mic' 'Front Mic'
>   Item0: 'Mic'
> Simple mixer control 'Input Source',1
>   Capabilities: cenum
>   Items: 'Mic' 'Front Mic'
>   Item0: 'Mic'
> Simple mixer control 'Input Source',2
>   Capabilities: cenum
>   Items: 'Mic' 'Front Mic'
>   Item0: 'Mic'
> Simple mixer control 'Mux',0
>   Capabilities: cvolume
>   Capture channels: Front Left - Front Right
>   Limits: Capture 0 - 4
>   Front Left: Capture 0 [0%] [0.00dB]
>   Front Right: Capture 0 [0%] [0.00dB]
> Simple mixer control 'Mux',1
>   Capabilities: cvolume
>   Capture channels: Front Left - Front Right
>   Limits: Capture 0 - 4
>   Front Left: Capture 0 [0%] [0.00dB]
>   Front Right: Capture 0 [0%] [0.00dB]
> Simple mixer control 'Mux',2
>   Capabilities: cvolume
>   Capture channels: Front Left - Front Right
>   Limits: Capture 0 - 4
>   Front Left: Capture 0 [0%] [0.00dB]
>   Front Right: Capture 0 [0%] [0.00dB]
> Simple mixer control 'Swap Center/LFE',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [off]
>
>
> On Tue, Jul 1, 2008 at 12:16 AM, stan <ghj...@co... 
> <mailto:ghj...@co...>> wrote:
>
>     Anders Rønningen wrote:
>
>
>         I have a Dell XPS M1530, and the volume is _much_ lower in
>         Ubuntu Hardy than it is in Windows Vista. I see someone has
>         reported the same for another laptop with the STAC 9228 audio
>         codec at
>         https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3785.
>
>         Anyone got an idea why, and/or how I can help debug it?
>
>         --
>         Anders Rønningen
>
>
>     Run alsa-info.sh with --no-upload option and look
>     at the generated file for a more comprehensive information.
>     The script is found at http://www.alsa-project.org/alsa-info.sh
>
>     See what the maximum values are for the volumes.  It seems that
>     these values aren't the cards actual maximum.  You could play with
>     upping them in the driver in little chunks, and seeing whether it
>     improves.
>
>     You could also ask your question on alsa-devel once you have the
>     information and see if the developer will give you some guidance.
>
>
>
>
>
> -- 
> Anders Rønningen 
The spec sheet will give you the maximum values.  That might be on the 
card providers website for public consumption, or you might be able to 
get it from the card provider by signing a non disclosure agreement, or 
the developer that wrote the driver for alsa might be able to answer 
your question about the maximum value.  A long shot would be to reverse 
engineer the window's driver looking for the value.