终于解决了我笔记本无法合盖休眠的问题, 我还以为要从底层编写驱动, 最终还是通过python代码加上systemd系统服务的方式解决了. 太难了, 困扰了我一年多的问题.
首先, 肯定是没有网上说的改一个配置就行那么简单, 要不然我也不会忙活这么久了.
1. 代码
/opt/lid_signal.py
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import subprocess
import time
def get_lid_state():
output = subprocess.check_output("cat /proc/acpi/button/lid/LID0/state", shell=True)
state_bytes = output.split(b":")[-1].strip()
state = state_bytes.decode()
return state
def main():
print("Starting lid signal detection...")
while True:
lid_state = get_lid_state()
if lid_state == "closed":
subprocess.run(["systemctl", "suspend"]) # call systemctl suspend command
time.sleep(5)
if __name__ == "__main__":
main()
/etc/systemd/system/lid_signal.service
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[Unit]
Description=Lid Signal Detection
After=multi-user.target
[Service]
Type=simple
ExecStart=/usr/bin/python3 /opt/lid_signal.py
Restart=always
[Install]
WantedBy=multi-user.target
2. 修改权限
根据情况看需不需要改service文件
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sudo chmod 755 /opt/lid_signal.py
3. 启动服务
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sudo systemctl daemon-reload
sudo systemctl enable lid_signal.service
sudo systemctl start lid_signal.service
