On Mon, Jun 25, 2018 at 10:57 AM, Brian <a...@cityscape.co.uk> wrote:
> 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. > > I read in another place that adding a user to "audio" is a bad idea, because it doesn't really fix anything, and has the potential to break things. Accordingly, I've removed my user from "audio". In tinkering further, I find that when I run "alsamixer" from my normal user account, it shows my card and chip to be "PulseAudio", and if I press F6 to "Select sound card", I get an option of "- default" (where it's set), "0 HDA Intel PCH", and "1 HDA NVidia". If I run "alsamixer" from my root account, it shows my card and chip to be "HDA Intel PCH" and "Realtek ALC269VB". I suspect I'm on the trail to fixing my problem, but I can't figure out how to change my default sound card. I can change it in alsamixer, but as soon as I get out of alsamixer and then go back in, it's back to "- default". -- Kent West <")))>< Westing Peacefully - http://kentwest.blogspot.com
