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June 30, 2022 01:42
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Add systemd targets and services to set SB2 perf_mode
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#!/bin/sh | |
echo "Creating systemd ac.target." | |
cat > /etc/systemd/system/ac.target << 'EOF' | |
[Unit] | |
Description=On AC power | |
DefaultDependencies=no | |
StopWhenUnneeded=yes | |
EOF | |
echo "Creating systemd battery.target." | |
cat > /etc/systemd/system/battery.target << 'EOF' | |
[Unit] | |
Description=On battery power | |
DefaultDependencies=no | |
StopWhenUnneeded=yes | |
EOF | |
echo "Creating udev rule for systemd targets." | |
cat > /etc/udev/rules.d/99-powertargets.rules << 'EOF' | |
SUBSYSTEM=="power_supply", KERNEL=="ADP1", ATTR{online}=="0", RUN+="/usr/sbin/systemctl start battery.target" | |
SUBSYSTEM=="power_supply", KERNEL=="ADP1", ATTR{online}=="1", RUN+="/usr/sbin/systemctl start ac.target" | |
EOF | |
udevadm control --reload-rules | |
echo "Creating systemd powerdown.service." | |
cat > /etc/systemd/system/powerdown.service << 'EOF' | |
[Unit] | |
Description=Set power state to power-saving on battery | |
[Service] | |
Type=oneshot | |
ExecStart=/bin/bash -c "echo 2 | tee '/sys/devices/platform/MSHW0107:00/perf_mode'; echo 'PERFORMANCE STATE set to battery saver'" | |
[Install] | |
WantedBy=battery.target | |
EOF | |
echo "Creating systemd powerup.service." | |
cat > /etc/systemd/system/powerup.service << 'EOF' | |
[Unit] | |
Description=Set power state to best on AC | |
[Service] | |
Type=oneshot | |
ExecStart=/bin/bash -c "echo 4 | tee '/sys/devices/platform/MSHW0107:00/perf_mode'; echo 'PERFORMANCE STATE set to best'" | |
[Install] | |
WantedBy=ac.target | |
EOF | |
echo "Enabling services." | |
systemctl enable powerdown | |
systemctl enable powerup |
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