Add optimus manager and full GPU power off config

etc/optimus-manager/nvidia-disable.sh

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+sudo sh -c 'echo "\\_SB.PCI0.GPP0.PG00._OFF" > /proc/acpi/call'

etc/optimus-manager/nvidia-enable.sh

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+sudo sh -c 'echo "\\_SB.PCI0.GPP0.PG00._ON" > /proc/acpi/call'

etc/optimus-manager/optimus-manager.conf

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+[optimus]
+switching=none
+pci_power_control=no
+pci_remove=no
+pci_reset=no
+auto_logout=yes
+startup_mode=amd
+
+[nvidia]
+modeset=yes
+PAT=yes
+options=overclocking

etc/optimus-manager/xorg-amd.conf

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+# You can use this file to add Xorg options which are not covered in the configuration file.
+#
+# Everything you put here will go to the "Device" section corresponding
+# to the AMD GPU in the Xorg configuration.
+# Lines starting with # are ignored.
+#
+# Example :
+#
+# Option "Backlight" "amdgpu_bl1"

etc/optimus-manager/xorg-intel.conf

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+# You can use this file to add Xorg options which are not covered in the configuration file.
+#
+# Everything you put here will go to the "Device" section corresponding
+# to the Intel GPU in the Xorg configuration.
+# Lines starting with # are ignored.
+#
+# Example :
+#
+# Option "Backlight" "intel_backlight"

etc/optimus-manager/xorg-nvidia.conf

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+# You can use this file to add Xorg options which are not covered in the configuration file.
+#
+# Everything you put here will go to the "Device" section corresponding
+# to the Nvidia GPU in the Xorg configuration.
+# Lines starting with # are ignored.
+#
+# Example :
+#
+# Option "ConnectToAcpid" "0" 

etc/optimus-manager/xsetup-amd.sh

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+#!/bin/sh
+
+# Everything you write here will be executed by the display manager when setting up the login screen in AMD mode.
+#sudo sh -c 'echo "\\_SB.PCI0.GPP0.PG00._OFF" > /proc/acpi/call'

etc/optimus-manager/xsetup-intel.sh

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+#!/bin/sh
+
+# Everything you write here will be executed by the display manager when setting up the login screen in Intel mode.

etc/optimus-manager/xsetup-nvidia.sh

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+#!/bin/sh
+
+# Everything you write here will be executed by the display manager when setting up the login screen in Nvidia mode.
+# (but before optimus-manager sets up PRIME with xrandr commands).
+#sudo sh -c 'echo "\\_SB.PCI0.GPP0.PG00._ON" > /proc/acpi/call'