Hello Notebook with Optimus (Intel and Nvidia) 1. Operation with Intel, login screen is visible. 2. Operation with Nvidia, login screen is black. It is however possible to log on blindly if the cursor is in the password field. Error occurs with sddm. Drivers are Intel = xf86-video-intel 1: 2.99.917 + 796 + g04b4f3b7-1 Nvidia = nvidia 387.12-2 OS = ArchLinux Config under Nvidia Section "OutputClass" Identifier "intel" MatchDriver "i915" Driver "modesetting" EndSection Section "OutputClass" Identifier "nvidia" MatchDriver "nvidia-drm" Driver "nvidia" "AllowEmptyInitialConfiguration" Option "PrimaryGPU" "yes" ModulePath "/ usr / lib / nvidia / xorg" EndSection Xsetup contains: xrandr --setprovideroutputsource modesetting NVIDIA-0 xrandr --listproviders returns: Providers: number: 2 Provider 0: id: 0x2d6 cap: 0x1, Source Output crtcs: 0 outputs: 0 associatedProviders: 1 name: NVIDIA-0 Provider 1: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 4 associated providers: 1 name: modesetting Is it a bug in sddm? greeting Google Translate.
This looks similar to what I experience Also an laptop with Intel and nvidia. sddm shows black screen but I still can type my password and login. After I logged in everything works fine. If I connect additional monitor, then usually I see the login prompt just on it while laptop display is black. I guess sddm uses X configuration and probably there is something wrong it, while after login some xrandr magic fixes displays configuration. In any case, showing the black screen is hardly a good option something is wrong with X config unless something is really terribly wrong. KDE 5.18.5, Gentoo Linux. $ cat /etc/X11/xorg.conf # nvidia-xconfig: X configuration file generated by nvidia-xconfig # nvidia-xconfig: version 440.82 # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 440.82 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" 0 0 Inactive "InactiveDevice1" Inactive "InactiveDevice1" InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" Option "Xinerama" "0" EndSection Section "Files" EndSection Section "InputDevice" # generated from data in "/etc/conf.d/gpm" Identifier "Mouse0" Driver "mouse" Option "Protocol" Option "Device" "/dev/input/mice" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection #Section "Monitor" # Identifier "Monitor0" # VendorName "Unknown" # ModelName "LG Electronics LG ULTRAWIDE" # HorizSync 30.0 - 90.0 # VertRefresh 56.0 - 75.0 # Option "DPMS" #EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce GTX 1660 Ti" BusID "PCI:1:0:0" EndSection Section "Device" Identifier "InactiveDevice1" Driver "modesetting" VendorName "Unknown" EndSection Section "Device" Identifier "InactiveDevice1" Driver "modesetting" VendorName "Unknown" EndSection Section "Screen" Identifier "Screen0" Device "Device0" #Monitor "Monitor0" DefaultDepth 24 Option "Stereo" "0" Option "nvidiaXineramaInfoOrder" "DFP-0" Option "metamodes" "nvidia-auto-select +1920+0" Option "SLI" "Off" Option "MultiGPU" "Off" Option "BaseMosaic" "off" Option "AllowEmptyInitialConfiguration" "True" SubSection "Display" Depth 24 EndSubSection EndSection $ xrandr --listproviders Providers: number : 2 Provider 0: id: 0x1b8 cap: 0x1, Source Output crtcs: 4 outputs: 3 associated providers: 1 name:NVIDIA-0 Provider 1: id: 0x1e3 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 1 associated providers: 1 name:modesetting
This was fixed in Plasma 5.21.