Systemd does not fiddle with those settings. It's more likely a tool like laptop-mode-tools or pm-utils. I suggest looking in that direction.
Am 26. März 2015 23:26:19 MEZ, schrieb Simon Richter <[email protected]>: >Package: systemd >Version: 215-12 >Severity: normal > >Hi, > >suspecting systemd, as it worked before installing systemd, and that >sounds >like a typical power management thing: > >After installing systemd, often dirty pages stop being flushed out and >remain dirty for minutes, then the first read access to a sector that >is >not cached then writes out all buffers synchronously. > >While that is somewhat sensible for a laptop with a harddisk on battery >power, I find it quite annoying as I have an SSD and enough memory for >it >to collect a few hundred MB of unwritten data. > >File system is ext4 with trim option set. > > Simon > >-- Package-specific info: > >-- System Information: >Debian Release: 8.0 > APT prefers testing > APT policy: (990, 'testing'), (500, 'stable') >Architecture: amd64 (x86_64) >Foreign Architectures: i386 > >Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores) >Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8) >Shell: /bin/sh linked to /bin/dash >Init: systemd (via /run/systemd/system) > >Versions of packages systemd depends on: >ii acl 2.2.52-2 >ii adduser 3.113+nmu3 >ii initscripts 2.88dsf-58 >ii libacl1 2.2.52-2 >ii libaudit1 1:2.4-1+b1 >ii libblkid1 2.25.2-5 >ii libc6 2.19-15 >ii libcap2 1:2.24-7 >ii libcap2-bin 1:2.24-7 >ii libcryptsetup4 2:1.6.6-5 >ii libgcrypt20 1.6.2-4+b1 >ii libkmod2 18-3 >ii liblzma5 5.1.1alpha+20120614-2+b3 >ii libpam0g 1.1.8-3.1 >ii libselinux1 2.3-2 >ii libsystemd0 215-12 >ii mount 2.25.2-5 >ii sysv-rc 2.88dsf-58 >ii udev 215-12 >ii util-linux 2.25.2-5 > >Versions of packages systemd recommends: >ii dbus 1.8.16-1 >ii libpam-systemd 215-12 > >Versions of packages systemd suggests: >pn systemd-ui <none> > >-- Configuration Files: >/etc/systemd/logind.conf changed: >[Login] >HandleLidSwitch=ignore > > >-- no debconf information -- Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet.

