I tried something this morning, since I was convinced that this problem revolves around Nouveau power management.
I made a backup of prime-select,
# cp /usr/bin/prime-select /usr/bin/prime-select.orig
and replaced the parameter that disables Nouveau power management (as per https://nouveau.freedesktop.org/wiki/KernelModuleParameters/).
# sed -i "s/boot_params\['nouveau.runpm'\] = '0'/boot_params\['nouveau.runpm'\] = '-1'/" /usr/bin/prime-select
After restarting on the integrated GPU, I launched Powertop (sudo powertop) in a terminal to measure the power consumption at idle, and it was around 6W.
I tried something this morning, since I was convinced that this problem revolves around Nouveau power management.
I made a backup of prime-select, prime-select /usr/bin/ prime-select. orig
# cp /usr/bin/
and replaced the parameter that disables Nouveau power management (as per https:/ /nouveau. freedesktop. org/wiki/ KernelModulePar ameters/). params\ ['nouveau. runpm'\ ] = '0'/boot_ params\ ['nouveau. runpm'\ ] = '-1'/" /usr/bin/ prime-select
# sed -i "s/boot_
After restarting on the integrated GPU, I launched Powertop (sudo powertop) in a terminal to measure the power consumption at idle, and it was around 6W.