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使用任何英特尔命令时都会出现同样的错误

tag-icon • tag-icon 18.04 intel-graphics gpu
使用任何英特尔命令时都会出现同样的错误

我有一块Intel Corporation UHD Graphics 620显卡。每当我尝试以下命令时sudo intel_backlight，sudo intel_gpu_top都会得到相同的错误：

(intel_gpu_top:1308) intel-mmio-CRITICAL: Test assertion failure function intel_mmio_use_pci_bar, file ../../lib/intel_mmio.c:145:
(intel_gpu_top:1308) intel-mmio-CRITICAL: Failed assertion: !(error != 0)
(intel_gpu_top:1308) intel-mmio-CRITICAL: Last errno: 1, Operation not permitted
(intel_gpu_top:1308) intel-mmio-CRITICAL: Couldn't map MMIO region
Stack trace:
  #0 [_init+0x7b87]
  #1 [_init+0x5420]
  #2 [_init+0xe85]
  #3 [__libc_start_main+0xe7]
  #4 [_init+0x1c92]
Test (null) failed.
**** DEBUG ****
(intel_gpu_top:1308) intel-chipset-DEBUG: Test requirement passed: pci_dev
(intel_gpu_top:1308) intel-mmio-CRITICAL: Test assertion failure function intel_mmio_use_pci_bar, file ../../lib/intel_mmio.c:145:
(intel_gpu_top:1308) intel-mmio-CRITICAL: Failed assertion: !(error != 0)
(intel_gpu_top:1308) intel-mmio-CRITICAL: Last errno: 1, Operation not permitted
(intel_gpu_top:1308) intel-mmio-CRITICAL: Couldn't map MMIO region
(intel_gpu_top:1308) igt-core-INFO: Stack trace:
(intel_gpu_top:1308) igt-core-INFO:   #0 [_init+0x7b87]
(intel_gpu_top:1308) igt-core-INFO:   #1 [_init+0x5420]
(intel_gpu_top:1308) igt-core-INFO:   #2 [_init+0xe85]
(intel_gpu_top:1308) igt-core-INFO:   #3 [__libc_start_main+0xe7]
(intel_gpu_top:1308) igt-core-INFO:   #4 [_init+0x1c92]
****  END  ****
FAIL (-1.000s)

为什么会发生这种情况？

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