Arch Linux

IgnI

Member

Registered: 2023-10-18

Posts: 2

Unknown watt consumption Asus zenbook duo UX482EG

I don't want to sound stupid, but I've been trying to get at least 70% windows autonomy in linux for 2 years.

I have a laptop Asus Zenbook Duo UX482EG.

• I noticed a strange pattern. If you disable nvidia, the consumption grows up to 20W, and if you select hybrid mode (nvidia + intel), the consumption drops to 11W while idle.

• I tried TLP - consumption doesn't change much 1-2 watt. It kind of worked. Changed schedulers, but no strong effect. I would even say that there is no effect.

• I tried laptop-tools - no changes.

• Tried everything my brain could think of - no luck.

• intel rapl also didn't have any strong effect. Again TLP + rapl with a limit to 5W on everything literally gave a profit.... at 0W according to powertop and turbostat.

• Tried thermald and no effect either.

• Tried acpi_cpufreq governor - temperatures became a little better, but the autonomy is also 2-4 hours doing nothing.

• Tried to adjust intel_pstate manually. Turn on/off HWP. Make passive mode or active mode.

• I put EPP in 15. I put pcie_aspm.policy=powersupersave and just nothing.

• Tried different environments to reduce the load. Only tried xorg or Wayland. KDE/GNOME/Hyprland/SwayWM. Autonomy is the same, i.e. 99999999999999999999W per nanosecond

Laptop with all this goodness eats 11W at idle and lives max 4 hours, when on windows it lives 6 to 10 when watching youtube videos in chrome.

Where am I wrong or can you somehow point me in the right direction? Thank you all very much in advance
I hope that the environment of all archlinux users, I can find someone who will give me a nudge to help. I am ready to dedicate poetry to you personally

neofetch

OS: Arch Linux x86_64 
Host: ZenBook UX482EG_UX482EG 1.0 
Kernel: 6.5.7-arch1-1 
Uptime: 51 mins 
Packages: 729 (pacman) 
Shell: bash 5.1.16 
Resolution: 1920x515 
DE: hyprland 
Theme: Adwaita [GTK2/3] 
Icons: Adwaita [GTK2/3] 
Terminal: kitty 
CPU: 11th Gen Intel i5-1135G7 (8) @ 4.200GHz 
GPU: NVIDIA GeForce MX450 
GPU: Intel TigerLake-LP GT2 [Iris Xe Graphics] 
Memory: 2815MiB / 15722MiB 

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

suspended

cpupower frequency-info

analyzing CPU 0:
  driver: intel_pstate
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency:  Cannot determine or is not supported.
  hardware limits: 400 MHz - 4.20 GHz
  available cpufreq governors: performance powersave
  current policy: frequency should be within 400 MHz and 2.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 1.18 GHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes

upower -i /org/freedesktop/UPower/devices/battery_BAT0

  
native-path:          BAT0
  vendor:               ASUSTeK
  model:                ASUS Battery
  power supply:         yes
  updated:              Wed 18 Oct 2023 06:06:34 AM MSK (0 seconds ago)
  has history:          yes
  has statistics:       yes
  battery
    present:             yes
    rechargeable:        yes
    state:               discharging
    warning-level:       none
    energy:              34.937 Wh
    energy-empty:        0 Wh
    energy-full:         60.052 Wh
    energy-full-design:  70.001 Wh
    energy-rate:         17.989 W
    voltage:             15.037 V
    charge-cycles:       283
    time to empty:       1.9 hours
    percentage:          58%
    capacity:            85.7873%
    technology:          lithium-ion
    icon-name:          'battery-good-symbolic'
  History (charge):
    1697598394	58.000	discharging
    1697598394	0.000	unknown
  History (rate):
    1697598394	17.989	discharging
    1697598394	0.000	unknown

https://i.postimg.cc/MW9hXhbV/image.png

Last edited by V1del (2023-10-18 10:40:46)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,766

Re: Unknown watt consumption Asus zenbook duo UX482EG

Please use code and not quote tags for outputs and post textual representation as text instead of an image (and if it must be an image, link to it rather than embedding)

The nvidia observation is normal and expected. Nvidia has facilities to properly power down a card under the driver's control assuming nothing else is using it. (unless you are talking about a UEFI setting, in which case this power increase would indeed be strange) imo 11 watt is quite low already for the system we have here. And it sounds like you tried most things that are feasible. Maybe test e.g. the LTS or even linux-mainline kernels.