Bug 96648 - Audio is muted and mapped wrongly by default on Focusrite Scarlett 18i8
Summary: Audio is muted and mapped wrongly by default on Focusrite Scarlett 18i8
Status: RESOLVED MOVED
Alias: None
Product: PulseAudio
Classification: Unclassified
Component: alsa (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium minor
Assignee: pulseaudio-bugs
QA Contact: pulseaudio-bugs
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-06-23 06:17 UTC by CapsAdmin
Modified: 2018-07-30 10:28 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments

Description CapsAdmin 2016-06-23 06:17:58 UTC
The first time I plugged this device in while being relatively new to linux I spent a lot of time figuring out why the audio wasn't working as opening a terminal and typing alsamixer, selecting the soundcard and pressing M on the output to unmute it wasn't something I had thought of. The left and right channel are also PCM 1/PCM 1 by default but they should be PCM 1/PCM 2. So after unmuting and setting the right channels there's audio at least.

But after that there's the issue that it's being treated as a 5.1 system so the bass is on some other channel. There's an existing issue for that though https://bugs.freedesktop.org/show_bug.cgi?id=93163

I don't know how you handle specific devices. If they don't conform do you do special case handling? Or should that happen somewhere else?
Comment 1 Tanu Kaskinen 2016-06-23 09:42:39 UTC
If the mixer settings have bad defaults, that's probably something that is better fixed in alsa. http://alsa-project.org/main/index.php/Bug_Tracking

We can add special handling for specific devices in pulseaudio, if someone writes configuration for them that is generally better than what our generic configuration does.
Comment 2 Raymond 2016-06-24 08:34:57 UTC
https://us.focusrite.com/usb-audio-interfaces/scarlett-18i8

18-in, 8-out USB interface is ideal for multi-instrumentalists, producers and small bands who want to record audio from a wide range of sources such as drums, guitars, keyboards and vocals
Comment 3 Raymond 2016-06-24 12:50:17 UTC
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/sound/usb/mixer_scarlett.c



you have to post output of alsa-info.sh


d
Comment 4 GitLab Migration User 2018-07-30 10:28:09 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/442.


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