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:ASRock B450 PRO4 主板、AMD Ryzen 3 2200G、Ubuntu 18.04、内核 5.4.0-45-generic、amdgpu 已加载...也许有人可以帮忙。
lshw -c video
*-display
description: VGA compatible controller
product: Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:09:00.0
version: c8
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix vga_controller bus_master cap_list rom
configuration: driver=amdgpu latency=0
resources: irq:63 memory:c0000000-cfffffff memory:d0000000-d01fffff ioport:f000(size=256) memory:fce00000-fce7ffff memory:c0000-dffff
答案1
ACPI 驱动程序尝试评估(执行)屏幕的 ACPI 亮度控制方法,但失败了,因为固件中的 ACPI AML 字节代码由于某种原因没有定义对象 _SB.PCI0.GP17.VGA.LCD._BCM.AFN7。所有这些的结果是 ACPI 亮度控制无法工作。这是一个固件问题,除了检查是否可以获得可以修复此问题的更新的 BIOS 固件外,我不知道有任何解决方法。