From: Petr Gladkikh <batyi@mail.ru>
To: Alsa-devel@lists.sourceforge.net
Subject: Wrong creation of emulated volume control.
Date: Mon, 14 Feb 2005 15:55:29 +0600 [thread overview]
Message-ID: <42107591.7090806@mail.ru> (raw)
Hello.
I did not managed to find anything appropriate in the list and seems
this problem hasn't been reported yet.
I have sound card with PCM having only mute switch (no volume
control). I have installed alsa-lib-1.8.0 (release). My control list
now have following PCM control (following is part of amixer output):
>>>
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right - Front Center - Rear
Left - Rear Right - Woofer - ? - ? - ? - ? - ? - ? - ? - ? - ? - ? - ?
- ? - ? - ? - ? - ? - ? - ? - ? - ? - ? - ? - ? - ? - ? - ?
Limits: Playback 0 - 0
Front Left: Playback 0 [0%] [on]
Front Right: Playback 0 [0%] [on]
Front Center: Playback 0 [0%] [on]
Rear Left: Playback 0 [0%] [on]
Rear Right: Playback 0 [0%] [on]
Woofer: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
?: Playback 0 [0%] [on]
<<<
This incorrect registration of new control seems also the reason of
crashes and messed display in alsamixer. I had not time to track the
reason of this but maybe there is some one who can fix it with less
effort than me.
Probably this needs some kind of simple registry in the filesystem so
all alsa-lib applications can share information about new (software
emulated) control.
--
Petr.
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next reply other threads:[~2005-02-14 9:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-14 9:55 Petr Gladkikh [this message]
2005-02-14 12:57 ` Wrong creation of emulated volume control Clemens Ladisch
2005-02-16 5:18 ` Re2: " Petr Gladkikh
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