Arch Linux

susamogus

Member

Registered: 2024-03-11

Posts: 8

update breaks usb dac

so, my fiio ka1 is breaking from time to time and I have to reflash the firmware from a windows vm
(basically the indicator led is not on and it shows as "ESS Technology, Inc. ESS USB Audio" in lsusb)
it's like always, if not most of the time, after a system update and reboot...
the device is used solely with the pc
now, before RMAing it, I'd like to find out whether it's a hardware issue or another arch linux monday

tips on what to do? again, I'm not 100% sure about anything I wrote

Last edited by susamogus (2024-03-27 15:04:19)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,888

Re: update breaks usb dac

First of all, make absolutely sure that Windows fast boot is disabled -- audio cards are often the first victims of failing to do that: https://wiki.archlinux.org/title/Dual_b … ibernation

Other than that compare lsusb,dmesg and aplay between working and not working, what are the differences? Maybe post these outputs for the working and not working conditions. https://wiki.archlinux.org/title/List_o … n_services

susamogus

Member

Registered: 2024-03-11

Posts: 8

Re: update breaks usb dac

https://paste.sh/7BsX5V10#AfTqjBwby7OvQ1o99XmPwMZw (couldn't figure out aplay but it did show different device names)

I'm not dualbooting
interestingly the flasher tells that the firmware is "ok," but still it won't work without a reflash

either way, now that I've reflashed we probably have to wait a few days before it breaks again

Last edited by susamogus (2024-03-27 15:51:39)

susamogus

Member

Registered: 2024-03-11

Posts: 8

Re: update breaks usb dac

life update. I switched to debian sid just over a week ago. I update every other day but absolutely no issues with the dac, whereas I'd already have reflashed multiple times on arch
or it was something with my specific setup? idk, it's not my business anymore

Last edited by susamogus (2024-04-09 08:23:11)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,888

Re: update breaks usb dac

Happening after system update could be the udev retrigger leading to some edge case, sorry could've surmised that, FWIW if you're willing for an experiment, does running

sudo udevadm trigger -c change

recause the issue on debian? Might also be kernel/linux-firmware specific. But if an udevadm trigger would repro this this would be interesting for a current discussion on the usefulness of keeping that setting on system updates.

susamogus

Member

Registered: 2024-03-11

Posts: 8

Re: update breaks usb dac

it does not cause the issue