Le Thu, 13 Jun 2013 22:02:48 +0000, Fons Adriaensen <f...@linuxaudio.org> a écrit :
> Hello all, Hello Fons, > > I wonder if any other users have experienced this problem and > how they handled it. > > This has occured three times when doing an fresh Archlinux install > on a system using the RME MADI cards. > > There seems to be something in the combination of recent versions > of the driver and alsactl that leads to alsactl freezing when the > configured (external) clock source for the card is not available. > The 'freeze' seems to be quite deep: it's impossible to kill the > process (even while that process is still a child of e.g. the > xterm from which it was launched, and not of PID 1). Any other > process trying to access the sound card (e.g. jackd) hangs in > the same way. This also means that when doing a poweroff or reboot > systemd will hang on the 'alsactl store' service, and the only > option is a power cycle. > > An added difficulty when trying to resolve this (things will be > OK once you have the correct /var/lib/alsa/asound.state) is that > recent systemd doesn't allow to disable or enable the alsa store/ > restore services easily (why not ?), you have to manually edit > some symlinks in order to do that. I don't know systemd at all. As a temporary workaround for alsa store/restore, maybe you can mask the module in /etc/modprobe.d/blacklist.conf and load it later. > Note: if this happens to be a driver problem, please do NOT revert > to the ancient behaviour of silently changing the clock source to > 'internal' when the external clock is not available. I DO still > expect to see opening the device fail if the external clock isn't > present, as has been the case for some time. The thing that shouldn't > happen is that alsactl chokes on this condition - it didn't before > so it shouldn't have to. > > Ciao, > -- "We have the heroes we deserve." _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev