我收到此消息"在啟動過程中無法關閉dGPU"。在我的日誌系統中（Ubuntu 18.04）。該錯誤導致我的獨立GPU（Nvidia 940mx）仍然可以運行，儘管我已切換到集成GPU（Intel HD 620）。因此，電池消耗更快。
我嘗試使用找出有關此錯誤的詳細信息，
systemctl status nvidia-prime-boot.service
結果是：
● nvidia-prime-boot.service - dGPU off during boot Loaded: loaded (/lib/systemd/system/nvidia-prime-boot.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Tue 2018-07-10 23:42:25 WIB; 27min ago Process: 996 ExecStart=/bin/sh -c echo OFF > /sys/kernel/debug/vgaswitcheroo/switch (code=exited, status=2) Main PID: 996 (code=exited, status=2) Jul 10 23:42:28 kharismaPC sh[996]: /bin/sh: 1: cannot create /sys/kernel/debug/vgaswitcheroo/switch: Directory nonexistent Jul 10 23:42:25 kharismaPC systemd[1]: Starting dGPU off during boot... Jul 10 23:42:25 kharismaPC systemd[1]: nvidia-prime-boot.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jul 10 23:42:25 kharismaPC systemd[1]: nvidia-prime-boot.service: Failed with result 'exit-code'. Jul 10 23:42:25 kharismaPC systemd[1]: Failed to start dGPU off during boot.
vgaswitcheroo
有問題請告訴我如何解決此問題
系統信息：
- Ubuntu 18.04
- Nvidia專有驅動程序390