[Bug 1785761] Re: Wrong driver shown as active; Selecting proprietary driver seems to have no effect

[Yann Salmon]

I managed to activate NVIDIA driver instead of nouveau by adding
"blacklist=nouveau rdblacklist=nouveau" to my kernel parameters.

But KDE Driver Manager still claims that nouveau is in use, when it is
not the case :

compare kcmshell5 kcm_driver_manager

Dev(
  id: "/sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0"
  modalias: "pci:v000010DEd000013BBsv000010DEsd00001098bc03sc00i00"
  model: "GM107GL [Quadro K620]"
  vendor: "NVIDIA Corporation"
  driver("nvidia-340" recommended[false] free[true] fromDistro[false] builtin[false] manualInstall[false] fuzzyActive[false] package[0x0])
  driver("nvidia-driver-390" recommended[false] free[true] fromDistro[false] builtin[false] manualInstall[false] fuzzyActive[false] package[0x0])
  driver("nvidia-driver-396" recommended[true] free[true] fromDistro[false] builtin[false] manualInstall[false] fuzzyActive[false] package[0x0])
  driver("xserver-xorg-video-nouveau" recommended[false] free[true] fromDistro[true] builtin[true] manualInstall[false] fuzzyActive[false] package[0x0])
)


with /var/log/gpu-manager.log : 
…
Is nvidia loaded? yes
Was nvidia unloaded? no
Is nvidia blacklisted? no
Is intel loaded? yes
Is radeon loaded? no
Is radeon blacklisted? no
Is amdgpu loaded? no
Is amdgpu blacklisted? no
Is amdgpu versioned? no
Is amdgpu pro stack? no
Is nouveau loaded? no
Is nouveau blacklisted? yes
Is nvidia kernel module available? yes
Is amdgpu kernel module available? no
Vendor/Device Id: 8086:191d
BusID "PCI:0 at 0:2:0"
Is boot vga? no
Vendor/Device Id: 10de:13bb
BusID "PCI:1 at 0:0:0"
Is boot vga? yes
Skipping "/dev/dri/card1", driven by "i915"
Skipping "/dev/dri/card0", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "i915"
Skipping "/dev/dri/card0", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "i915"
Skipping "/dev/dri/card0", driven by "nvidia-drm"


** Summary changed:

- Selecting proprietary driver seems to have no effect
+ Wrong driver shown as active; Selecting proprietary driver seems to have no effect

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https://bugs.launchpad.net/bugs/1785761

Title:
  Wrong driver shown as active; Selecting proprietary driver seems to
  have no effect

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