Hi all, As a follow-up to the previous conversation, I have now also tried 5.14.1-rt19 (packaged as 5.14.1.19.realtime1) in the hopes that ALSA driver improvements for my Fireface800 will allow me to use pipewire going forward. Unfortunately, firewire-ohci and/or firewire-core are still freezing upon trying to make use of the connected device which is connected with the card using the chip in question (see title). Upon first boot the /dev/fw0 and /dev/fw1 nodes did not show up initially [1] (log without using -1 debug parameter), which is why I switched the device off and on again. Afterwards the device nodes were created, so I attempted to use aplay -l to check whether the device was detected. The command hung forever (also starting jackd) and I had to reboot eventually. Using alsamixer I was able to select the Fireface800 device from the list of devices though. Upon 2nd boot I used the -1 debug parameter for firewire-ohci [2]. The device nodes were created automatically, but neither aplay -l nor alsamixer showed the audio interface. The attempt to switch the device off and on again and afterwards to remove the firewire-ohci module lead to another freeze and a successive reboot. If I can provide further information, please let me know! I hope I can try the vanilla 5.14.1 kernel tomorrow to see how it behaves in regards to firewire-ohci (judging from the past it will probably work though). Best, David P.S.: I have added Kristian Hoegsberg in CC, who is mentioned as the author of firewire-ohci and firewire-core. [1] https://pkgbuild.com/~dvzrv/bugs/2021/09/linux-5.14.1.19.realtime1-kernel.log [2] https://pkgbuild.com/~dvzrv/bugs/2021/09/linux-5.14.1.19.realtime1-restart_device_kernel.log -- https://sleepmap.de
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