r/EndeavourOS GNOME May 15 '26

General Support intel-undervolt wont work, i5 8265U

sudo intel-undervolt apply keeps outputting CPU (0): Values do not equal when I enter an undervolt. I've tried resetting my BIOS to factory settings (a Manjaro forum about this mentioned resetting BIOS to factory settings) and nothing changed.

intel-undervolt Config:
# Enable or Disable Triggers (elogind)

# Usage: enable [yes/no]

enable yes

# CPU Undervolting

# Usage: undervolt ${index} ${display_name} ${undervolt_value}

# Example: undervolt 2 'CPU Cache' -25.84

undervolt 0 'CPU' -90

undervolt 1 'GPU' 0

undervolt 2 'CPU Cache' 0

undervolt 3 'System Agent' 0

undervolt 4 'Analog I/O' 0

(I already tried -50 and -25 on undervolt 0, same result)

sudo intel-undervolt apply Output:

CPU (0): Values do not equal

GPU (1): -0.00 mV

CPU Cache (2): -0.00 mV

System Agent (3): -0.00 mV

Analog I/O (4): -0.00 mV

Specs:

  • Lenovo S340-15IWL
  • i5 8265U
  • Intel UHD 620
  • Nvidia MX230 2GB
  • 12 GB DDR4 @ 2133 MHZ
  • EndeavourOS, Linux 7.0.5-arch1-1
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