![]() Now if you try with the optional switches in the GUI, the error continues. Tee: /sys/class/sound/hwC0D0/reconfig: Device or resource busy ![]() Steps to Reproduce: sudo apt install alsa-tools-guiĭo retasking according to the docs (e.g. Rebooting or on-off the machine does NOT solve the issue.Ubuntu sound mixer shows "Dummy Output" instead of the correct dev1 output pin names.Audio output on dev1 does NOT work after these attempts:.Sound output will break immediately upon the failure.All attempts at retasking audio jack pins using sudo hdajackretask.extra audio pkg installed: alsa-tools, alsa-tools-gui, gnome-alsamixer.Audio device 2 (dev2 below): Audio-gd® USB DAC NFB-2015.Intel B75 chipset, MSI B75MA-P45 (MSI-7798) board Audio device 1 (dev1 below): Realtek® ALC887 HD Audio Codec,.Don’t know anything about Linux hardware architecture. Adept at Device Manager and devcon.exe under Windows®.
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