Hey there,
in case someone has/had the same problem, I just want to update you about my long lasting (>1 year!) problem with standby/sleep - basically I was unable to sleep or standby my PC (see .inxi below).
After I uselessly tried almost everything, thanks to your generous support and suggestions, I just chose to wait it out in the hope that some future update would have solved it…
Well, something seemingly did! 
Unfortunatly, I cannot say what did fix it (finger crossed!), but it has been in the last couple of days. I’d like to be more useful, I’m sorry!
Thanks again to all of you that helped me and keep up the good work on Garuda! 
System:
Kernel: 6.8.2-zen2-1-zen arch: x86_64 bits: 64 compiler: gcc v: 13.2.1
clocksource: tsc avail: hpet,acpi_pm
parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-zen
root=UUID=1930b164-e875-487b-9e15-d08dfb606021 rw rootflags=subvol=@
quiet quiet rd.udev.log_priority=3 vt.global_cursor_default=0 loglevel=3
ibt=off resume=UUID=290da5e7-6510-4b46-9fa1-14463cba09cf
Desktop: KDE Plasma v: 6.0.3 tk: Qt v: N/A info: frameworks v: 6.0.0
wm: kwin_x11 with: krunner vt: 2 dm: SDDM Distro: Arch Linux
Machine:
Type: Desktop Mobo: ASRock model: P67 Extreme4 serial: <superuser required>
uuid: <superuser required> BIOS: American Megatrends v: P3.10
date: 04/24/2012
Battery:
Device-1: hidpp_battery_0 model: Logitech G604 Wireless Gaming Mouse
serial: <filter> charge: 10% (should be ignored) rechargeable: yes
status: discharging
CPU:
Info: model: Intel Core i5-2500K bits: 64 type: MCP arch: Sandy Bridge
gen: core 2 level: v2 built: 2010-12 process: Intel 32nm family: 6
model-id: 0x2A (42) stepping: 7 microcode: 0x2F
Topology: cpus: 1x cores: 4 smt: <unsupported> cache: L1: 256 KiB
desc: d-4x32 KiB; i-4x32 KiB L2: 1024 KiB desc: 4x256 KiB L3: 6 MiB
desc: 1x6 MiB
Speed (MHz): avg: 1596 min/max: 1600/5900 scaling: driver: intel_cpufreq
governor: schedutil cores: 1: 1596 2: 1596 3: 1596 4: 1596 bogomips: 26339
Flags: avx ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Vulnerabilities: <filter>
Graphics:
Device-1: NVIDIA GM204 [GeForce GTX 970] vendor: ZOTAC driver: nvidia
v: 550.67 alternate: nouveau,nvidia_drm non-free: 545.xx+ status: current
(as of 2024-02; EOL~2026-12-xx) arch: Maxwell code: GMxxx
process: TSMC 28nm built: 2014-2019 pcie: gen: 2 speed: 5 GT/s lanes: 16
ports: active: none off: DP-1,DVI-I-1 empty: DVI-D-1,HDMI-A-1
bus-ID: 01:00.0 chip-ID: 10de:13c2 class-ID: 0300
Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.5
compositor: kwin_x11 driver: X: loaded: nvidia unloaded: modesetting
alternate: fbdev,nouveau,nv,vesa gpu: nvidia,nvidia-nvswitch
display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 97 s-size: 503x283mm (19.80x11.14")
s-diag: 577mm (22.72")
Monitor-1: DP-1 note: disabled model: Panasonic Panasonic-TV
serial: <filter> built: 2010 res: 1920x1080 dpi: 70 gamma: 1.2
size: 698x392mm (27.48x15.43") modes: max: 1920x1080 min: 640x480
Monitor-2: DVI-I-1 note: disabled pos: primary model: LG (GoldStar) W2363D
serial: <filter> built: 2011 res: 1920x1080 dpi: 96 gamma: 1.2
size: 510x287mm (20.08x11.3") diag: 582mm (22.9") ratio: 16:9 modes:
max: 1920x1080 min: 640x480
API: EGL v: 1.5 hw: drv: nvidia platforms: device: 0 drv: nvidia device: 2
drv: swrast gbm: drv: nvidia surfaceless: drv: nvidia x11: drv: nvidia
inactive: wayland,device-1
API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 550.67
glx-v: 1.4 direct-render: yes renderer: NVIDIA GeForce GTX 970/PCIe/SSE2
memory: 3.91 GiB
API: Vulkan v: 1.3.279 layers: 5 device: 0 type: discrete-gpu
name: NVIDIA GeForce GTX 970 driver: nvidia v: 550.67 device-ID: 10de:13c2
surfaces: xcb,xlib device: 1 type: cpu name: llvmpipe (LLVM 17.0.6 256
bits) driver: mesa llvmpipe v: 24.0.4-arch1.2 (LLVM 17.0.6)
device-ID: 10005:0000 surfaces: xcb,xlib
Audio:
Device-1: Intel 6 Series/C200 Series Family High Definition Audio
vendor: ASRock 6 driver: snd_hda_intel v: kernel bus-ID: 00:1b.0
chip-ID: 8086:1c20 class-ID: 0403
Device-2: NVIDIA GM204 High Definition Audio vendor: ZOTAC
driver: snd_hda_intel v: kernel pcie: gen: 2 speed: 5 GT/s lanes: 16
bus-ID: 01:00.1 chip-ID: 10de:0fbb class-ID: 0403
Device-3: M-Audio AIR 192 6 driver: snd-usb-audio type: USB rev: 2.0
speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 1-1.5:3 chip-ID: 0763:410c
class-ID: fe01
Device-4: Logitech G430 Surround Sound Gaming Headset
driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
lanes: 1 mode: 1.1 bus-ID: 2-1.2:4 chip-ID: 046d:0a4d class-ID: 0300
API: ALSA v: k6.8.2-zen2-1-zen status: kernel-api with: aoss
type: oss-emulator tools: N/A
Server-1: PipeWire v: 1.0.4 status: active with: 1: pipewire-pulse
status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
4: pw-jack type: plugin tools: pactl,pw-cat,pw-cli,wpctl
Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
vendor: ASRock driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1
port: b000 bus-ID: 0c:00.0 chip-ID: 10ec:8168 class-ID: 0200
IF: enp12s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Device-2: Realtek RTL88x2bu [AC1200 Techkey] driver: rtw_8822bu type: USB
rev: 2.1 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 1-1.6:4
chip-ID: 0bda:b812 class-ID: 0000 serial: <filter>
IF: wlp0s26u1u6 state: up mac: <filter>
Info: services: NetworkManager, systemd-timesyncd, wpa_supplicant
Bluetooth:
Device-1: Cambridge Silicon Radio Bluetooth Dongle (HCI mode) driver: btusb
v: 0.8 type: USB rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 2-1.3:5
chip-ID: 0a12:0001 class-ID: e001
Report: btmgmt ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 4.0
lmp-v: 6 status: discoverable: no pairing: no class-ID: 6c0104
Drives:
Local Storage: total: 2.85 TiB used: 213.53 GiB (7.3%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/sda maj-min: 8:0 vendor: Samsung model: SSD 860 EVO 1TB
size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
tech: SSD serial: <filter> fw-rev: 3B6Q scheme: MBR
ID-2: /dev/sdb maj-min: 8:16 vendor: Seagate model: ST2000DX001-1NS164
size: 1.82 TiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
tech: HDD rpm: 7200 serial: <filter> fw-rev: CC41 scheme: MBR
ID-3: /dev/sdc maj-min: 8:32 vendor: Crucial model: M4-CT128M4SSD2
size: 119.24 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
tech: SSD serial: <filter> fw-rev: 070H scheme: MBR
Partition:
ID-1: / raw-size: 50 GiB size: 46.57 GiB (93.13%) used: 39.46 GiB (84.7%)
fs: btrfs dev: /dev/sda2 maj-min: 8:2
ID-2: /home raw-size: 414.91 GiB size: 414.91 GiB (100.00%)
used: 174.07 GiB (42.0%) fs: btrfs dev: /dev/sda3 maj-min: 8:3
ID-3: /var/log raw-size: 50 GiB size: 46.57 GiB (93.13%)
used: 39.46 GiB (84.7%) fs: btrfs dev: /dev/sda2 maj-min: 8:2
ID-4: /var/tmp raw-size: 50 GiB size: 46.57 GiB (93.13%)
used: 39.46 GiB (84.7%) fs: btrfs dev: /dev/sda2 maj-min: 8:2
Swap:
Kernel: swappiness: 133 (default 60) cache-pressure: 100 (default) zswap: no
ID-1: swap-1 type: zram size: 15.58 GiB used: 1.16 GiB (7.4%)
priority: 100 comp: zstd avail: lzo,lzo-rle,lz4,lz4hc,842 max-streams: 4
dev: /dev/zram0
ID-2: swap-2 type: partition size: 16.6 GiB used: 0 KiB (0.0%)
priority: -2 dev: /dev/sda4 maj-min: 8:4
Sensors:
System Temperatures: cpu: 41.0 C mobo: N/A gpu: nvidia temp: 34 C
Fan Speeds (rpm): N/A gpu: nvidia fan: 32%
Info:
Memory: total: 16 GiB available: 15.58 GiB used: 8.31 GiB (53.3%)
Processes: 314 Power: uptime: 8h 17m states: freeze,standby,mem,disk
suspend: deep avail: s2idle,shallow wakeups: 1 hibernate: platform
avail: shutdown, reboot, suspend, test_resume image: 6.17 GiB
services: org_kde_powerdevil, power-profiles-daemon, upowerd Init: systemd
v: 255 default: graphical tool: systemctl
Packages: pm: pacman pkgs: 1702 libs: 515 tools: octopi,paru Compilers:
clang: 17.0.6 gcc: 13.2.1 Shell: garuda-inxi default: Bash v: 5.2.26
running-in: konsole inxi: 3.3.33
Garuda (2.6.23-1):
System install date: 2024-01-27
Last full system update: 2024-04-04 ↻
Is partially upgraded: No
Relevant software: snapper NetworkManager dracut nvidia-dkms
Windows dual boot: <superuser required>
Failed units: