[arch-general] [Bad fix?] was Re: No user sound - only root has access alsamixer on virtualbox?

David C. Rankin drankinatty at suddenlinkmail.com
Mon Feb 3 15:50:55 EST 2014

On 02/03/2014 09:05 AM, David C. Rankin wrote:
> On 02/02/2014 04:22 PM, Armin K. wrote:
>>>    According to
>>> https://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture (footnote
>>> [1] under Installation) sound access was provided to users via Consolekit in the
>>> past. Consolekit is no longer part of Arch. I have kept basic build of TDE for
>>> Arch totally reliant on Arch packages, so I would like to solve the sound
>>> problem in the proper way so that this desktop is a seamless addition to Arch.
>>> What is the best approach to finding a solution to this sound issue?
>> You shouldn't need to have user member of any group that granted access to the
>> any kind of hardware nowadays. That's handled by logind, which is a replacement
>> for ConsoleKit.
>> But, if you start your DE via .xinitrc, you need to make xserver start on the
>> same VT in order to preserve valid systemd session. Also, you should have a user
>> dbus daemon started, as I already pointed out.
>> If you are starting your DE via some kind of Display Manager, and given that it
>> uses PAM, its PAM file need to contain systemd pam file in session section,
>> unless you include system files.
>> https://wiki.archlinux.org/index.php/Xinitrc#Getting_started - Scroll down to
>> the note right before "Configuration"
>> https://wiki.archlinux.org/index.php/General_Troubleshooting#Session_permissions
> OK,
>   Now we are getting somewhere. Trinity desktop tdm.service is started by
> systemd on boot. tdm is an updated kde3/kdm desktop manager. tdm.service contains:
> [Unit]
> Description=TDE Display Manager
> After=systemd-user-sessions.service
> [Service]
> ExecStart=/opt/trinity/bin/tdm
> [Install]
> Alias=display-manager.service
>   On installation trinity also creates and installs a pam file in pam.d
> containing the following:
> /etc/pam.d/trinity
> #%PAM-1.0
> #auth       required     pam_securetty.so
> auth       requisite    pam_nologin.so
> auth       include      system-local-login
> account    include      system-local-login
> session    include      system-local-login
>   On login, dbus and pulseaudio are started from /etc/X11/xinit/xinitrc.d. The
> two files started are:
> 30-dbus
> pulseaudio
>   All of this looks exactly correct for what is described in
> https://wiki.archlinux.org/index.php/General_Troubleshooting#Session_permissions. Except
> for the response from loginctl. Checking loginctl I do not get Remote=no and
> Active=yes as suggested on the page, instead I get:
> 08:29 valhalla:~> loginctl show-session $XDG_SESSION_ID
> NAutoVTs=6
> KillExcludeUsers=root
> KillUserProcesses=no
> IdleHint=yes
> IdleSinceHint=0
> IdleSinceHintMonotonic=0
> InhibitDelayMaxUSec=5s
> HandlePowerKey=poweroff
> HandleSuspendKey=suspend
> HandleHibernateKey=hibernate
> HandleLidSwitch=suspend
> IdleAction=ignore
> IdleActionUSec=30min
> PreparingForShutdown=no
> PreparingForSleep=no
>   So, according to the Troubleshooting section -- If it does not [contain
> Remote=no and Active=yes], make sure that X runs on the same tty where the login
> occurred.
>   Here is where I need help. Systemd is doing the starting, so how can I make
> sure that X runs on the same tty where the login occurred? Where/how do I
> specify what vt X is running on?

Bad to reply-to-self, but I thought the following information would be helpful.
Here are the process started and running including dbus:

/usr/bin/VBoxService -f
/usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile
/sbin/agetty --noclear tty1
 \_ /usr/bin/X -br -nolisten tcp :0 vt7 -auth /var/run/xauth/A:0-LI4Qla
 \_ -:0
     \_ /bin/sh /opt/trinity/bin/starttde
         \_ /opt/trinity/bin/tdeinit_phase1
             \_ kwrapper ksmserver --windowmanager twin
/usr/bin/gpg-agent --daemon
/usr/bin/ssh-agent -s
dcopserver [tdeinit] --nosid --suicide
kded [tdeinit] --new-startup
start_tdeinit --new-startup +kcminit_startup
ksmserver [tdeinit] --windowmanager twin

David C. Rankin, J.D.,P.E.

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