Bug#1074073: systemctl: some lines flash for no apparent reason

[Michael Gold]

Package: systemd
Version: 256.1-1
Severity: minor

Dear Maintainer,

When I run systemctl, some lines are under-lined; and since some time
within the last year, these have flashed at about 1 Hz.  It's annoying
and makes them difficult to read.

For example, these lines are affected:
  proc-sys-fs-binfmt_misc.automount
  user.slice

I'm using urxvt, but xterm and mlterm behave the same way.

The under-lining seems non-sensical, although the manual explains it:
  The header and the last unit of a given type are underlined

I find no mention of what the flashing is meant to indicate.  If it's
intentional, it should be explained and there should be some way way to
disable it.

- Michael


-- Package-specific info:

-- System Information:
Debian Release: trixie/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.8.12-amd64 (SMP w/32 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages systemd depends on:
ii  libacl1            2.3.2-2
ii  libapparmor1       3.1.7-1
ii  libaudit1          1:3.1.2-4
ii  libblkid1          2.40.1-8.1
ii  libc6              2.38-13
ii  libcap2            1:2.66-5
ii  libmount1          2.40.1-8.1
ii  libpam0g           1.5.3-7
ii  libseccomp2        2.5.5-1
ii  libselinux1        3.5-2+b2
ii  libssl3t64         3.2.2-1
ii  libsystemd-shared  256.1-1
ii  libsystemd0        256.1-1
ii  mount              2.40.1-8.1

Versions of packages systemd recommends:
ii  chrony [time-daemon]            4.5-2
ii  dbus [default-dbus-system-bus]  1.14.10-4+b1
ii  libzstd1                        1.5.5+dfsg2-2
pn  systemd-cryptsetup              <none>

Versions of packages systemd suggests:
ii  libcryptsetup12       2:2.7.2-2
ii  libgcrypt20           1.10.3-3
ii  libidn2-0             2.3.7-2
ii  liblz4-1              1.9.4-2
ii  liblzma5              5.6.2-1
pn  libtss2-rc0t64        <none>
pn  libtss2-tcti-device0  <none>
ii  polkitd               124-2
pn  systemd-boot          <none>
pn  systemd-container     <none>
pn  systemd-homed         <none>
pn  systemd-repart        <none>
pn  systemd-resolved      <none>
pn  systemd-userdbd       <none>

Versions of packages systemd is related to:
ii  dbus-user-session  1.14.10-4+b1
pn  dracut             <none>
ii  initramfs-tools    0.142
pn  libnss-systemd     <none>
ii  libpam-systemd     256.1-1
ii  udev               256.1-1

-- no debconf information
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