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programming.devCan't undervolt on laptopsubmitted by thesupertechie to linux 3 points | 1 comments cross-posted from: lemmy.blahaj.zone/post/49549442 > I have an HP ENVY Laptop 16-h1055cl. I was trying to use `intel-undervolt` to undervolt my laptop, but whenever I start the service, it fails with: > > > Oct 22 15:10:50 aurorabook systemd[1]: Starting Intel Undervolt Service... > Oct 22 15:10:50 aurorabook intel-undervolt[1773]: CPU (0): Values do not equal > Oct 22 15:10:50 aurorabook intel-undervolt[1773]: GPU (1): -0.00 mV > Oct 22 15:10:50 aurorabook intel-undervolt[1773]: CPU Cache (2): Values do not equal > Oct 22 15:10:50 aurorabook intel-undervolt[1773]: System Agent (3): -0.00 mV > Oct 22 15:10:50 aurorabook intel-undervolt[1773]: Analog I/O (4): -0.00 mV > Oct 22 15:10:50 aurorabook systemd[1]: intel-undervolt.service: Main process exited, code=exited, status=1> > Oct 22 15:10:50 aurorabook systemd[1]: intel-undervolt.service: Failed with result 'exit-code'. > Oct 22 15:10:50 aurorabook systemd[1]: Failed to start Intel Undervolt Service. > > > The values that “do not equal” is -100 mV. I’ve even reset my UEFI settings to no avail. Am I doing something wrong? > > The whole reason I started this research on undervolting is because battery life has become far worse recently. With the NVIDIA GPU switched off using `envycontrol`, I get 8-10 W browsing and near 22 when watching a YouTube video using mpv.

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