Hey,
Objective: when closing my laptop lid (on battery), I would like my system to suspend-then-hibernate
Running systemctl suspend-then-hibernate works like a charm (followed Power management - ArchWiki)
Still following the archwiki (Power management - ArchWiki) I uncommented HandleLidSwitch and set it to HandelLidSwitch=suspend-then-hibernate in /etc/systemd/logind.conf. Then I ran systemctl kill -s HUP systemd-logind to apply changes. Also rebooted just to be sure.
But it seems that kde plasma’s power management tool overrides systemd settings… Or something else, because it doesn’t work (I set a timeout to 60sec for hibernating so I can test it). I thought that the config files in /etc/systemd/* override any program’s own config? see systemd-sleep.conf(5) — Arch manual pages
So if anybody has an idea as to why it’s not working… 
Just in case:
$ inxi -Fazy
System:
Kernel: 5.10.2-2-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64
root=UUID=c9136c9f-47f5-4078-8d4c-af348b4a9581 rw quiet udev.log_priority=3
threadirqs resume=/dev/disk/by-uuid/c9136c9f-47f5-4078-8d4c-af348b4a9581
resume_offset=1169408
Desktop: KDE Plasma 5.20.4 tk: Qt 5.15.2 wm: kwin_x11 dm: SDDM
Distro: Manjaro Linux
Machine:
Type: Laptop System: LENOVO product: 24295F3 v: ThinkPad T530
serial: <filter> Chassis: type: 10 serial: <filter>
Mobo: LENOVO model: 24295F3 serial: <filter> UEFI [Legacy]: LENOVO
v: G4ET93WW (2.53 ) date: 02/22/2013
Battery:
ID-1: BAT0 charge: 67.5 Wh condition: 73.9/86.6 Wh (85%) volts: 12.1/11.1
model: LGC 45N1011 type: Li-ion serial: <filter> status: Discharging
Device-1: hidpp_battery_0 model: Logitech Wireless Mouse M315/M235
serial: <filter> charge: 100% (should be ignored) rechargeable: yes
status: Discharging
CPU:
Info: Quad Core model: Intel Core i7-3840QM bits: 64 type: MT MCP
arch: Ivy Bridge family: 6 model-id: 3A (58) stepping: 9 microcode: 21
L2 cache: 8 MiB
flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 44719
Speed: 1339 MHz min/max: 1200/3800 MHz Core speeds (MHz): 1: 1339 2: 1220
3: 1516 4: 1464 5: 1491 6: 1510 7: 1221 8: 1198
Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled
Type: l1tf
mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds status: Vulnerable: No microcode
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel 3rd Gen Core processor Graphics vendor: Lenovo driver: i915
v: kernel bus ID: 00:02.0 chip ID: 8086:0166
Device-2: Acer ThinkPad Integrated Camera type: USB driver: uvcvideo
bus ID: 1-1.6:6 chip ID: 5986:02d2
Display: x11 server: X.Org 1.20.10 compositor: kwin_x11 driver: intel
unloaded: modesetting alternate: fbdev,vesa display ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2")
s-diag: 582mm (22.9")
Monitor-1: LVDS1 res: 1920x1080 hz: 60 dpi: 143 size: 340x190mm (13.4x7.5")
diag: 389mm (15.3")
OpenGL: renderer: Mesa DRI Intel HD Graphics 4000 (IVB GT2)
v: 4.2 Mesa 20.3.1 compat-v: 3.0 direct render: Yes
Audio:
Device-1: Intel 7 Series/C216 Family High Definition Audio vendor: Lenovo
driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:1e20
Sound Server: ALSA v: k5.10.2-2-MANJARO
Network:
Device-1: Intel 82579LM Gigabit Network vendor: Lenovo driver: e1000e
v: kernel port: 5080 bus ID: 00:19.0 chip ID: 8086:1502
IF: enp0s25 state: down mac: <filter>
Device-2: Intel Centrino Advanced-N 6205 [Taylor Peak] driver: iwlwifi
v: kernel port: efa0 bus ID: 03:00.0 chip ID: 8086:0085
IF: wlp3s0 state: up mac: <filter>
Device-3: Ericsson Business Mobile Networks BV H5321 gw Mobile Broadband
Module
type: USB driver: cdc_acm,cdc_mbim,cdc_wdm bus ID: 3-4:3 chip ID: 0bdb:1926
serial: <filter>
IF: wwp0s20u4i6 state: down mac: <filter>
Drives:
Local Storage: total: 489.05 GiB used: 141.73 GiB (29.0%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/sda maj-min: 8:0 vendor: Crucial model: CT525MX300SSD1
size: 489.05 GiB block size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
serial: <filter> rev: R060
Partition:
ID-1: / raw size: 100 GiB size: 97.93 GiB (97.93%) used: 24.3 GiB (24.8%)
fs: ext4 dev: /dev/sda5 maj-min: 8:5
ID-2: /home raw size: 375.19 GiB size: 294.29 GiB (78.44%)
used: 117.43 GiB (39.9%) fs: ext4 dev: /dev/sda6 maj-min: 8:6
Swap:
Kernel: swappiness: 60 (default) cache pressure: 100 (default)
ID-1: swap-1 type: file size: 8 GiB used: 0 KiB (0.0%) priority: -2
file: /swapfile
Sensors:
System Temperatures: cpu: 49.0 C mobo: 0.0 C
Fan Speeds (RPM): cpu: 1977
Info:
Processes: 254 Uptime: 18m wakeups: 6 Memory: 15.34 GiB
used: 2.39 GiB (15.6%) Init: systemd v: 247 Compilers: gcc: 10.2.0 Packages:
pacman: 1445 lib: 476 Shell: Bash v: 5.1.0 running in: konsole inxi: 3.2.01