159 lines
3.6 KiB
Markdown
159 lines
3.6 KiB
Markdown
# ALSA Scarlett2 Control Panel Installation
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## Prerequisites
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Linux Kernel with the ALSA Scarlett2 Protocol Driver.
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- Use at least version 5.14 for Scarlett Gen 3 support and bug fixes
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for the Gen 2 support.
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- For Clarett+ 8Pre support, you need 6.1.
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- For the other Clarett USB and Clarett+ models, you need 6.7.
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- For the level meters to work, you need 6.7.
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If you don't have 6.7, you can get the driver from here and build it
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for your current kernel:
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https://github.com/geoffreybennett/scarlett-gen2/releases/tag/v6.5.11c1
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## Enabling the Driver
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As of Linux 6.7 the driver is enabled by default and you can skip this
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section.
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If you're running a kernel before 6.7, the driver needs to be enabled
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at module load time with the `device_setup=1` option to
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insmod/modprobe. Create a file /etc/modprobe.d/scarlett.conf
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containing the appropriate line for your device:
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Scarlett Gen 2:
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- 6i6: `options snd_usb_audio vid=0x1235 pid=0x8203 device_setup=1`
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- 18i8: `options snd_usb_audio vid=0x1235 pid=0x8204 device_setup=1`
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- 18i20: `options snd_usb_audio vid=0x1235 pid=0x8201 device_setup=1`
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Scarlett Gen 3:
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- Solo: `options snd_usb_audio vid=0x1235 pid=0x8211 device_setup=1`
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- 2i2: `options snd_usb_audio vid=0x1235 pid=0x8210 device_setup=1`
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- 4i4: `options snd_usb_audio vid=0x1235 pid=0x8212 device_setup=1`
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- 8i6: `options snd_usb_audio vid=0x1235 pid=0x8213 device_setup=1`
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- 18i8: `options snd_usb_audio vid=0x1235 pid=0x8214 device_setup=1`
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- 18i20: `options snd_usb_audio vid=0x1235 pid=0x8215 device_setup=1`
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Clarett+:
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- 8Pre: `options snd_usb_audio vid=0x1235 pid=0x820c device_setup=1`
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Or you can use a sledgehammer:
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```
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options snd_usb_audio device_setup=1,1,1,1
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```
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to pass that option to the first 4 USB audio devices.
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To see if the driver is present and enabled: `dmesg | grep -i -A 5 -B
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5 focusrite` should display information like:
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```
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New USB device found, idVendor=1235, idProduct=8215, bcdDevice= 6.0b
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Product: Scarlett 18i20 USB
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Focusrite Scarlett Gen 2/3 Mixer Driver enabled pid=0x8215
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```
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If the driver is disabled you’ll see a message like:
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```
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Focusrite Scarlett Gen 2/3 Mixer Driver disabled; use options
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snd_usb_audio vid=0x1235 pid=0x8215 device_setup=1 to enable and
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report any issues to g@b4.vu",
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```
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## Building and Running
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On Fedora, the packages `alsa-lib-devel` and `gtk4-devel` need to be
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installed:
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```
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sudo dnf -y install alsa-lib-devel gtk4-devel
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```
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On Ubuntu 22.04:
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```
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sudo apt -y install git make gcc libgtk-4-dev libasound2-dev
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```
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To download from github:
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```
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git clone https://github.com/geoffreybennett/alsa-scarlett-gui
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cd alsa-scarlett-gui
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```
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To build:
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```
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cd src
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make -j4
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```
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To run:
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```
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./alsa-scarlett-gui
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```
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You can install it into `/usr/local` (binary, desktop file, and icon)
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with:
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```
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sudo make install
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```
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And uninstall with:
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```
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sudo make uninstall
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```
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Continue on to reading [USAGE.md](USAGE.md) for usage information and
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known issues.
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## Flatpak
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With Flatpak, in any distro:
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```
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flatpak-builder --user --install --force-clean flatpak-build \
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vu.b4.alsa-scarlett-gui.yml
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```
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Be sure to use `flatpak-build` as the directory where the flatpak is
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built or hence you risk bundling the artifacts when comitting!
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If you get messages like these:
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```
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Failed to init: Unable to find sdk org.gnome.Sdk version 45
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Failed to init: Unable to find runtime org.gnome.Platform version 45
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```
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Then install them:
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```
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flatpak install org.gnome.Sdk
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flatpak install org.gnome.Platform
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```
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If you get:
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```
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Looking for matches…
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error: No remote refs found for ‘org.gnome.Sdk’
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```
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Then:
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```
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flatpak remote-add --user --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
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```
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