On Mon 25 Jun 2018 at 09:58:29 -0500, Kent West wrote: > I recently dist-upgraded my Buster/Sid box, and lost: > - networking temporarily (got it back, but not exactly sure how) > -video (black screen; no obvious local terminal response, but could ssh > in; it's an NVidia bug apparently, worked around with > "slab_common.usercopy_fallback=y" added to kernel parameters at start-up) > - audio as a normal user. > > So I've fixed the first two issues, but still have no audio when I log into > X as a normal user (or at least as my normal user; now that I think about > it, I'll try as a different normal user as soon as I get this email sent > off). > > In both X11/Cinnamon and X11/Plasma Desktop, the audio button on the panel > shows "Dummy Output" as the audio device when I log into X as my normal > user. I added my user to the "audio" group and logged out/in and tried > again; no change. > > I then Ctrl-Alt-F1'd to TT1, logged in as root, "systemctl stop sddm", and > "startx &" as root, and the DM was a simpler DM (maybe XFCE? maybe LXDE? it > wasn't obvious, at least to me), and there was not volume control on any > panel, so I just fired up Audacity and played a .m4v file, and audio worked > successfully. > > So audio works for root, but not for my normal user (even after being added > to the "audio" group). > > Any ideas/suggestions?
A user being in the audio group is made redundant by systemd installing udev rules (/lib/udev/rules.d/70-uaccess.rules) and systemd-logind adding a locally loggedin user to the ACLs for the corresponding devices. brian@desktop:~$ ls -l /dev/snd/* crw-rw----+ 1 root audio 116, 2 Apr 22 14:21 /dev/snd/controlC0 crw-rw----+ 1 root audio 116, 4 May 26 10:40 /dev/snd/pcmC0D0c crw-rw----+ 1 root audio 116, 3 Jun 24 23:21 /dev/snd/pcmC0D0p crw-rw----+ 1 root audio 116, 6 Apr 22 14:21 /dev/snd/pcmC0D1c crw-rw----+ 1 root audio 116, 5 Apr 22 14:21 /dev/snd/pcmC0D1p crw-rw----+ 1 root audio 116, 1 Apr 22 14:21 /dev/snd/seq crw-rw----+ 1 root audio 116, 33 Apr 22 14:21 /dev/snd/timer brian@desktop:~$ getfacl /dev/snd/controlC0 getfacl: Removing leading '/' from absolute path names # file: dev/snd/controlC0 # owner: root # group: audio user::rw- user:brian:rw- group::rw- mask::rw- other::--- -- Brian.
