Package: openssh-server
Version: 1:9.9p1-3
Control: affects -1 bsdutils

Recently I've become aware of ssh sessions no longer showing a value for "TTY"
in w(1) and loginctl list-sessions. I think this leads to issues like wall(1) /
shutdown / ... not delivering messages to the terminals of users logged in via
ssh.

Just to clarify, what I'm seeing:

17:10 ch@tiksta:~ % w
 17:10:57 up  1:30,  3 users,  load average: 0.08, 0.04, 0.07
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
ch                -                15:48    1:30m  0.00s  0.10s 
/usr/lib/systemd/systemd --user
ch       tty2     -                17:02    8:57   0.05s  0.05s -zsh
ch                192.168.67.1     17:10    1:30m  0.00s  0.04s sshd-session: 
ch [priv]

The last of these entries is my session logged in via ssh. The running shell 
says:
17:10 ch@tiksta:~ % echo $TTY
/dev/pts/0

I would have expected w(1) to show pts/0 in the TTY column, like it did on
bookworm.  Local logins (using login) still show a TTY in w(1), for
example the second entry in above's output.

loginctl also has no info on the TTY:
17:13 ch@tiksta:~ % loginctl list-sessions
SESSION  UID USER SEAT  LEADER CLASS   TTY  IDLE SINCE
      2 1000 ch   -     796    manager -    no   -
      6 1000 ch   seat0 40849  user    tty2 no   -
      7 1000 ch   -     40920  user    -    no   -
(The last line should show pts/0 here.)

I don't know if the observed behaviour is an effect of utmp going
away, or caused by other changes in sshd. Could you please check
what's going on there?

Thanks,
Chris

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