NVIDIA: Difference between revisions
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====External Displays==== | |||
In the event that your dedicated GPU has display outputs inaccessible to the internal GPU you need to configure Xorg Displays and set output providers using xrandr. | |||
An example Xorg configuration is below: | |||
{{file|/etc/nixos/configuration.nix|nix|<nowiki> | |||
{ | |||
services.xserver.config = '' | |||
Section "ServerLayout" | |||
Identifier "layout" | |||
Screen 0 "dGPU" | |||
Inactive "iGPU" | |||
EndSection | |||
Section "Device" | |||
Identifier "iGPU" | |||
Driver "modesetting" | |||
BusID "PCI:0:2:0" | |||
EndSection | |||
Section "Device" | |||
Identifier "dGPU" | |||
Driver "nvidia" | |||
BusID "PCI:1:0:0" | |||
EndSection | |||
Section "Screen" | |||
Identifier "dGPU" | |||
Device "dGPU" | |||
Option "AllowEmptyInitialConfiguration" "Yes" | |||
#Option "UseDisplayDevice" "none" | |||
EndSection | |||
Section "Screen" | |||
Identifier "iGPU" | |||
Device "iGPU" | |||
EndSection | |||
''; | |||
}</nowiki>}} | |||
To configure the output sources, first list the providers: | |||
<nowiki> | |||
xrandr --listproviders | |||
Providers: number : 2 | |||
Provider 0: id: 0x1b8 cap: 0x1, Source Output crtcs: 4 outputs: 3 associated providers: 0 name:NVIDIA-0 | |||
Provider 1: id: 0x202 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 0 associated providers: 1 name:modesetting | |||
</nowiki> | |||
You should see two providers, one for the external GPU and one for the internal GPU. | |||
Then run xrandr to set: | |||
<nowiki>xrandr --setprovideroutputsource 1 0</nowiki> | |||
=== Bumblebee === | === Bumblebee === | ||