How to change refresh rate from 120hz to 60hz

Hi, recently i bought new laptop with 120hz screen but wanted to change to 60hz to save on battery. I tried to go in Display Configuration but cant change it, and also in NVIDIA X Server Settings dont have option to change refresh rate?


System:
Kernel: 6.0.10-zen2-1-zen arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-zen
root=UUID=ae6ec92c-85fc-4592-aece-f1af02f9355d rw [email protected]
quiet quiet splash rd.udev.log_priority=3 vt.global_cursor_default=0
resume=UUID=1680612d-450f-4e58-900d-57db2acea1f4 loglevel=3
Desktop: KDE Plasma v: 5.26.3 tk: Qt v: 5.15.7 info: latte-dock
wm: kwin_x11 vt: 1 dm: SDDM Distro: Garuda Linux base: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 82K2 v: IdeaPad Gaming 3 15ACH6
serial: <superuser required> Chassis: type: 10 v: IdeaPad Gaming 3 15ACH6
serial: <superuser required>
Mobo: LENOVO model: LNVNB161216 v: No DPK serial: <superuser required>
UEFI: LENOVO v: H3CN32WW(V2.02) date: 02/23/2022
Battery:
ID-1: BAT1 charge: 24.9 Wh (52.1%) condition: 47.8/45.0 Wh (106.2%)
volts: 11.6 min: 11.5 model: 0x53 0x4D 0x50 0x00 0x32 0x30 0x 0x4C 0x32
0x30 0x4D 0x33 0x50 0x4500 type: Li-ion serial: <filter>
status: discharging cycles: 7
CPU:
Info: model: AMD Ryzen 5 5600H with Radeon Graphics bits: 64 type: MT MCP
arch: Zen 3 gen: 4 level: v3 note: check built: 2021-22
process: TSMC n7 (7nm) family: 0x19 (25) model-id: 0x50 (80) stepping: 0
microcode: 0xA50000C
Topology: cpus: 1x cores: 6 tpc: 2 threads: 12 smt: enabled cache:
L1: 384 KiB desc: d-6x32 KiB; i-6x32 KiB L2: 3 MiB desc: 6x512 KiB
L3: 16 MiB desc: 1x16 MiB
Speed (MHz): avg: 3141 high: 3300 min/max: 1200/4280 boost: enabled
scaling: driver: acpi-cpufreq governor: performance cores: 1: 3300 2: 3300
3: 1397 4: 3300 5: 3300 6: 3300 7: 3300 8: 3300 9: 3300 10: 3300 11: 3300
12: 3300 bogomips: 79050
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Vulnerabilities:
Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: mmio_stale_data status: Not affected
Type: retbleed status: Not affected
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
prctl
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
sanitization
Type: spectre_v2 mitigation: Retpolines, IBPB: conditional, IBRS_FW,
STIBP: always-on, RSB filling, PBRSB-eIBRS: Not affected
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: NVIDIA TU117M [GeForce GTX 1650 Mobile / Max-Q] vendor: Lenovo
driver: nvidia v: 520.56.06 alternate: nouveau,nvidia_drm non-free: 520.xx+
status: current (as of 2022-10) arch: Turing code: TUxxx
process: TSMC 12nm built: 2018-22 pcie: gen: 3 speed: 8 GT/s lanes: 8
link-max: gen: 4 speed: 16 GT/s lanes: 16 bus-ID: 01:00.0
chip-ID: 10de:1f9d class-ID: 0302
Device-2: AMD Cezanne [Radeon Vega Series / Radeon Mobile Series]
vendor: Lenovo driver: amdgpu v: kernel arch: GCN-5.1 code: Vega-2
process: TSMC n7 (7nm) built: 2018-21 pcie: gen: 3 speed: 8 GT/s lanes: 16
link-max: gen: 4 speed: 16 GT/s ports: active: eDP-1 empty: HDMI-A-1
bus-ID: 05:00.0 chip-ID: 1002:1638 class-ID: 0300 temp: 39.0 C
Device-3: IMC Networks Integrated Camera type: USB driver: uvcvideo
bus-ID: 1-3:2 chip-ID: 13d3:56ff class-ID: 0e02
Display: x11 server: X.Org v: 21.1.4 with: Xwayland v: 22.1.5
compositor: kwin_x11 driver: X: loaded: amdgpu,nvidia
unloaded: modesetting,nouveau alternate: fbdev,nv,vesa dri: radeonsi
gpu: amdgpu display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.00x11.22")
s-diag: 582mm (22.93")
Monitor-1: eDP-1 mapped: eDP model: BOE Display 0x0a81 built: 2021
res: 1920x1080 hz: 120 dpi: 142 gamma: 1.2 size: 344x194mm (13.54x7.64")
diag: 395mm (15.5") ratio: 16:9 modes: max: 1920x1080 min: 640x480
API: OpenGL v: 4.6 Mesa 22.2.3 renderer: AMD Radeon Graphics (renoir LLVM
14.0.6 DRM 3.48 6.0.10-zen2-1-zen) direct render: Yes
Audio:
Device-1: AMD Renoir Radeon High Definition Audio vendor: Lenovo
driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
link-max: gen: 4 speed: 16 GT/s bus-ID: 05:00.1 chip-ID: 1002:1637
class-ID: 0403
Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor vendor: Lenovo driver: N/A
alternate: snd_pci_acp3x, snd_rn_pci_acp3x, snd_pci_acp5x, snd_pci_acp6x,
snd_acp_pci, snd_rpl_pci_acp6x, snd_sof_amd_renoir pcie: gen: 3
speed: 8 GT/s lanes: 16 link-max: gen: 4 speed: 16 GT/s bus-ID: 05:00.5
chip-ID: 1022:15e2 class-ID: 0480
Device-3: AMD Family 17h/19h HD Audio vendor: Lenovo driver: snd_hda_intel
v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16 link-max: gen: 4
speed: 16 GT/s bus-ID: 05:00.6 chip-ID: 1022:15e3 class-ID: 0403
Sound API: ALSA v: k6.0.10-zen2-1-zen running: yes
Sound Server-1: PulseAudio v: 16.1 running: no
Sound Server-2: PipeWire v: 0.3.60 running: yes
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1
port: 2000 bus-ID: 02:00.0 chip-ID: 10ec:8168 class-ID: 0200
IF: enp2s0 state: down mac: <filter>
Device-2: MEDIATEK MT7921 802.11ax PCI Express Wireless Network Adapter
vendor: Lenovo driver: mt7921e v: kernel pcie: gen: 2 speed: 5 GT/s lanes: 1
bus-ID: 03:00.0 chip-ID: 14c3:7961 class-ID: 0280
IF: wlo1 state: up mac: <filter>
Bluetooth:
Device-1: Foxconn / Hon Hai Wireless_Device type: USB driver: btusb v: 0.8
bus-ID: 1-4:3 chip-ID: 0489:e0cd class-ID: e001 serial: <filter>
Report: bt-adapter ID: hci0 rfk-id: 2 state: down
bt-service: enabled,running rfk-block: hardware: no software: yes
address: <filter>
Drives:
Local Storage: total: 704.24 GiB used: 192.58 GiB (27.3%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung
model: MZALQ256HBJD-00BL2 size: 238.47 GiB block-size: physical: 512 B
logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
rev: 5L2QFXM7 temp: 36.9 C scheme: GPT
ID-2: /dev/sda maj-min: 8:0 vendor: HGST (Hitachi) model: HTS725050A7E630
size: 465.76 GiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
type: HDD rpm: 7200 serial: <filter> rev: B550
Partition:
ID-1: / raw-size: 229.37 GiB size: 229.37 GiB (100.00%)
used: 33.7 GiB (14.7%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
used: 608 KiB (0.2%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
ID-3: /home raw-size: 229.37 GiB size: 229.37 GiB (100.00%)
used: 33.7 GiB (14.7%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
ID-4: /var/log raw-size: 229.37 GiB size: 229.37 GiB (100.00%)
used: 33.7 GiB (14.7%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
ID-5: /var/tmp raw-size: 229.37 GiB size: 229.37 GiB (100.00%)
used: 33.7 GiB (14.7%) fs: btrfs dev: /dev/nvme0n1p2 maj-min: 259:2
Swap:
Kernel: swappiness: 133 (default 60) cache-pressure: 100 (default)
ID-1: swap-1 type: zram size: 7.12 GiB used: 240 MiB (3.3%) priority: 100
dev: /dev/zram0
ID-2: swap-2 type: partition size: 8.8 GiB used: 0 KiB (0.0%) priority: -2
dev: /dev/nvme0n1p3 maj-min: 259:3
Sensors:
System Temperatures: cpu: 47.4 C mobo: N/A gpu: amdgpu temp: 39.0 C
Fan Speeds (RPM): N/A
Info:
Processes: 311 Uptime: 53m wakeups: 1 Memory: 7.12 GiB
used: 3.33 GiB (46.7%) Init: systemd v: 252 default: graphical
tool: systemctl Compilers: gcc: 12.2.0 Packages: 1866 pm: pacman pkgs: 1860
libs: 521 tools: octopi,paru pm: flatpak pkgs: 6 Shell: fish v: 3.5.1
default: Bash v: 5.1.16 running-in: konsole inxi: 3.3.23
Garuda (2.6.9-1):
System install date:     2022-11-25
Last full system update: 2022-11-28
Is partially upgraded:   No
Relevant software:       NetworkManager
Windows dual boot:       No/Undetected
Snapshots:               Snapper
Failed units:            plymouth-deactivate.service plymouth-start.service

Hi there, welcome to the forum!
Maybe you could try with this procedure (valid also for refresh rates):
https://wiki.archlinux.org/title/Xrandr#Adding_undetected_resolutions

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Your display is driven by AMD, Nvidia settings panel won't work. To save battery, ensure that Nvidia GPU is sleeping. You can check is your GPU is sleeping by running

cat /sys/bus/pci/devices/0000:01:00.0/power/runtime_status

a few times. You should see "suspended".

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