错误：
ACPI: Video Device [VGA1] (multi-head: yes rom: no post: no)
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GP17.VGA.LCD._BCM.AFN7], AE_NOT_FOUND (20190816/psargs-330)
Initialized Local Variables for Method [_BCM]:
Local0: 00000000ea353c08 <Obj> Integer 00000000000000FF
Local1: 00000000418bc901 <Obj> Integer 0000000000000000
Initialized Arguments for Method [_BCM]: (1 arguments defined for method invocation)
Arg0: 00000000c180e4bd <Obj> Integer 0000000000000064
ACPI Error: Aborting method \_SB.PCI0.GP17.VGA.LCD._BCM due to previous error (AE_NOT_FOUND) (20190816/psparse-531)
ACPI Error: Evaluating _BCM failed (20190816/video-357)
我的系统：华擎 B450 PRO4 主板，AMD Ryzen 3 2200G，Ubuntu 18.04，内核 5.4.0-45-generic，amdgpu …