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Focusrite Scarlett 2i2 3rd Gen suffers from high output latency with the 1.2.9-1 update #329

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IsaacLambat opened this issue Jun 23, 2023 · 3 comments
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Focusrite Scarlett 2i2 3rd Gen suffers from high output latency with the 1.2.9-1 update #329

IsaacLambat opened this issue Jun 23, 2023 · 3 comments

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@IsaacLambat
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IsaacLambat commented Jun 23, 2023 •
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Hello, I have recently upgraded from alsa-ucm-conf 1.2.8-1 to 1.2.9-1 and this has caused some latency of around 1/2 seconds for outputting audio via the Focusrite Scarlett 2i2 3rd Gen which is connected to the computer via USB. No latency is introduced when plugging wired headphones directly in to the motherboard so issue seems to be isolated to the device.

I noticed the change logs indicate better support for this device was added in this version (which is great!) so these changes may have affected the existing settings of the headphones. I have downgraded only alsa-ucm-conf to 1.2.8-1 and the output has no latency so I am using this as a workaround.

I use PulseAudio with ALSA on Arch Linux.

Versions:

alsa-card-profiles - 0.3.71
alsa-lib - 1.2.9
alsa-ucm-conf - 1.2.9
alsa-utils - 1.2.9

pulseaudio - 16.1
Arch Linux - 6.3.9-arch1-1

dmesg detects the product as Scarlett 2i2 USB

Please let me know if any more information is needed (such as logs or config files) and if there is anything I should try.

Many thanks :D
@perexg
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perexg commented Jun 26, 2023

May be similar to #314 .

@perexg perexg mentioned this issue Jun 26, 2023
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perexg added a commit that referenced this issue Jun 29, 2023
@perexg
USB-Audio: Do not use 4ch playback stream for stereo Focusrite Scarle…
d42e1d1 
…t devices

Link: #309
Link: #329
Link: #314
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
@perexg
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perexg commented Jun 29, 2023

Could you test the latest UCM configuration ? See https://github.com/alsa-project/alsa-ucm-conf#readme .

@IsaacLambat
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That's worked!! Big thanks for the quick fix

@AceBlade258 AceBlade258 mentioned this issue Aug 1, 2023
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sarnold pushed a commit to VCTLabs/alsa-ucm-conf that referenced this issue Nov 30, 2023
@perexg @sarnold
USB-Audio: Do not use 4ch playback stream for stereo Focusrite Scarle…
0fbe3bd 
…t devices

Link: alsa-project#309
Link: alsa-project#329
Link: alsa-project#314
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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@perexg @IsaacLambat