I have sent a bug report, reference code: 95673cb8-1092-4fda-a268-dc7ed4921cab
Issue: USB DAC can’t be selected in dietpi-config. I have set it to other options and back to USB-DAC but did not help.
Hardware is USBridge. DAC is Benchmark DAC3. I have checked that it runs in USB2 mode and restarted it.
Worked perfectly before. Issue appeared after disconnecting USBridge from power.
I clean-installed latest dietpi on USBridge EMMC card:
DietPi v6.24.1 : 09:49 - Sat 25/05/19 ─────────────────────────────────── Device model : Sparky SBC (armv7l) aplay -l results: **** List of PLAYBACK Hardware Devices **** card 0: atm7059link [atm7059_link], device 0: ATC2603C PCM atc2603c-dai-0  Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: atm7059link [atm7059_link], device 1: HDMI PCM atm7059-hdmi-dai-1  Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: atm7059link [atm7059_link], device 2: SPDIF PCM atm7059-spdif-dai-2  Subdevices: 1/1 Subdevice #0: subdevice #0
Also followed suggestions on https://dietpi.com/phpbb/viewtopic.php?t=2483. Received error:
/DietPi/dietpi/func/dietpi-set_hardware soundcard usb-dac [ OK ] DietPi-Set_hardware | Root access verified. [ OK ] DietPi-Set_hardware | RootFS R/W access verified. DietPi-Set_hardware ─────────────────────────────────── Mode: soundcard (usb-dac) [ INFO ] DietPi-Set_hardware | Checking for pre-req APT packages: alsa-utils [ INFO ] DietPi-Set_hardware | Pre-req APT packages were already installed Simple mixer control 'audio output mode switch',0 Capabilities: enum Items: 'i2s' 'hdmi' 'spdif' Item0: 'hdmi' [ OK ] DietPi-Set_hardware | Setting in /DietPi/dietpi.txt adjusted: CONFIG_SOUNDCARD=usb-dac [FAILED] DietPi-Set_hardware | Unable to find a USB-DAC on system. [ OK ] DietPi-Set_hardware | Setting in /DietPi/dietpi.txt adjusted: CONFIG_SOUNDCARD=none [FAILED] soundcard usb-dac | An issue has occurred
I have also updated USB DAC drivers according to https://github.com/MichaIng/DietPi/issues/2610.
Thank you for any help.