Journal 2022-07-02
Hi, I’ve been following the topic for a while, trying to fix the crash on with sync (not reverse prime). I managed to make it work with the following config:
Video config configuration.nix
{ config
, pkgs
, lib
, ...
}: {
config = {
services.xserver.exportConfiguration = true;
services.xserver.videoDrivers = [
# "modesetting"
# "fbdev"
"amdgpu"
"nvidia"
];
hardware.opengl = {
enable = true;
extraPackages = with pkgs; [
rocm-opencl-icd
rocm-opencl-runtime
amdvlk
vaapiVdpau
];
driSupport = true;
};
hardware.nvidia = {
#powerManagement = {
# enable = true;
# finegrained = true;
#};
nvidiaPersistenced = true;
modesetting.enable = true;
prime = {
#offload.enable = true;
sync.enable = true;
amdgpuBusId = "PCI:5:0:0";
nvidiaBusId = "PCI:1:0:0";
};
};
environment.etc."X11/xorg.conf.d/10-amdgpu.conf".text = ''
Section "OutputClass"
Identifier "AMDgpu"
MatchDriver "amdgpu"
Driver "amdgpu"
EndSection
'';
environment.etc."X11/xorg.conf.d/10-radeon.conf".text = ''
Section "OutputClass"
Identifier "Radeon"
MatchDriver "radeon"
Driver "radeon"
EndSection
'';
environment.etc."X11/xorg.conf.d/10-nvidia.conf".text = ''
Section "OutputClass"
Identifier "nvidia"
MatchDriver "nvidia-drm"
Driver "nvidia"
Option "AllowEmptyInitialConfiguration"
Option "SLI" "Auto"
Option "BaseMosaic" "on"
EndSection
Section "ServerLayout"
Identifier "layout"
Option "AllowNVIDIAGPUScreens"
EndSection
'';
services.xserver.config = lib.mkForce ''
Section "ServerFlags"
Option "AllowMouseOpenFail" "on"
Option "DontZap" "on"
EndSection
Section "Module"
EndSection
Section "Monitor"
Identifier "Monitor[0]"
EndSection
# Additional "InputClass" sections
Section "InputClass"
Identifier "libinput mouse configuration"
MatchDriver "libinput"
MatchIsPointer "on"
Option "AccelProfile" "adaptive"
Option "LeftHanded" "off"
Option "MiddleEmulation" "on"
Option "NaturalScrolling" "off"
Option "ScrollMethod" "twofinger"
Option "HorizontalScrolling" "on"
Option "SendEventsMode" "enabled"
Option "Tapping" "on"
Option "TappingDragLock" "on"
Option "DisableWhileTyping" "off"
EndSection
Section "InputClass"
Identifier "libinput touchpad configuration"
MatchDriver "libinput"
MatchIsTouchpad "on"
Option "AccelProfile" "adaptive"
Option "LeftHanded" "off"
Option "MiddleEmulation" "on"
Option "NaturalScrolling" "off"
Option "ScrollMethod" "twofinger"
Option "HorizontalScrolling" "on"
Option "SendEventsMode" "enabled"
Option "Tapping" "on"
Option "TappingDragLock" "on"
Option "DisableWhileTyping" "off"
EndSection
Section "ServerLayout"
Identifier "Layout[all]"
Inactive "Device-amdgpu[0]"
# Reference the Screen sections for each driver. This will
# cause the X server to try each in turn.
Screen "Screen-nvidia[0]"
Screen "Screen-amdgpu[0]"
EndSection
# For each supported driver, add a "Device" and "Screen"
# section.
Section "Device"
Identifier "Device-nvidia[0]"
Driver "nvidia"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "Screen-nvidia[0]"
Device "Device-nvidia[0]"
Option "RandRRotation" "on"
Option "AllowEmptyInitialConfiguration"
EndSection
Section "Screen"
Identifier "Screen-amdgpu[0]"
Device "Device-amdgpu[0]"
EndSection
Section "Device"
Identifier "Device-amdgpu[0]"
Driver "amdgpu"
BusID "PCI:5:0:0"
EndSection
'';
services.xserver.displayManager.gdm.wayland = false;
};
}
Exported xorg.conf
Section "Files"
FontPath "/nix/store/qydzz8v6nl5n88aabc2glrayy3wd867q-unifont-14.0.04/share/fonts"
FontPath "/nix/store/23bir9f496d3q7z7r11l0139afm58ln3-font-cursor-misc-1.0.3/lib/X11/fonts/misc"
FontPath "/nix/store/zxg8rdv42bqs5rz4p7wwsdq9dlnp8qdp-font-misc-misc-1.1.2/lib/X11/fonts/misc"
FontPath "/nix/store/srf487s27nqn8vxxyv9jw9sl9fqif6b0-font-adobe-100dpi-1.0.3/lib/X11/fonts/100dpi"
FontPath "/nix/store/jsysicgm3ifrjzgvpwby4v9vsph3wkm8-font-adobe-75dpi-1.0.3/lib/X11/fonts/75dpi"
ModulePath "/nix/store/bji361pzh9knqbs182g0jgm22nw9wkgh-xf86-video-amdgpu-21.0.0/lib/xorg/modules/drivers"
ModulePath "/nix/store/bji361pzh9knqbs182g0jgm22nw9wkgh-xf86-video-amdgpu-21.0.0/lib/xorg/modules/drivers"
ModulePath "/nix/store/ib2y8r7s6xj408zgg9nsplcqsvpyykk9-nvidia-x11-515.48.07-5.18.6-bin/lib/xorg/modules/drivers"
ModulePath "/nix/store/ib2y8r7s6xj408zgg9nsplcqsvpyykk9-nvidia-x11-515.48.07-5.18.6-bin/lib/xorg/modules/extensions"
ModulePath "/nix/store/mjn47cwnwgy49zlcq7kv66smsy7r6ghv-xorg-server-1.20.14/lib/xorg/modules"
ModulePath "/nix/store/mjn47cwnwgy49zlcq7kv66smsy7r6ghv-xorg-server-1.20.14/lib/xorg/modules/drivers"
ModulePath "/nix/store/mjn47cwnwgy49zlcq7kv66smsy7r6ghv-xorg-server-1.20.14/lib/xorg/modules/extensions"
ModulePath "/nix/store/mrpw1zy65avf761yydyl5v2ya1247rs8-xf86-input-evdev-2.10.6/lib/xorg/modules/input"
ModulePath "/nix/store/cgrphl8qib783yp1g3xifsqv8bvksgsw-xf86-input-libinput-1.2.0/lib/xorg/modules/input"
FontPath "/nix/store/f741iiyrs9dj9rf5nzx0r33gfic0jd1f-X11-fonts/share/X11/fonts"
EndSection
Section "ServerFlags"
Option "AllowMouseOpenFail" "on"
Option "DontZap" "on"
EndSection
Section "Module"
EndSection
Section "Monitor"
Identifier "Monitor[0]"
EndSection
# Additional "InputClass" sections
Section "InputClass"
Identifier "libinput mouse configuration"
MatchDriver "libinput"
MatchIsPointer "on"
Option "AccelProfile" "adaptive"
Option "LeftHanded" "off"
Option "MiddleEmulation" "on"
Option "NaturalScrolling" "off"
Option "ScrollMethod" "twofinger"
Option "HorizontalScrolling" "on"
Option "SendEventsMode" "enabled"
Option "Tapping" "on"
Option "TappingDragLock" "on"
Option "DisableWhileTyping" "off"
EndSection
Section "InputClass"
Identifier "libinput touchpad configuration"
MatchDriver "libinput"
MatchIsTouchpad "on"
Option "AccelProfile" "adaptive"
Option "LeftHanded" "off"
Option "MiddleEmulation" "on"
Option "NaturalScrolling" "off"
Option "ScrollMethod" "twofinger"
Option "HorizontalScrolling" "on"
Option "SendEventsMode" "enabled"
Option "Tapping" "on"
Option "TappingDragLock" "on"
Option "DisableWhileTyping" "off"
EndSection
Section "ServerLayout"
Identifier "Layout[all]"
Inactive "Device-amdgpu[0]"
# Reference the Screen sections for each driver. This will
# cause the X server to try each in turn.
Screen "Screen-nvidia[0]"
Screen "Screen-amdgpu[0]"
EndSection
# For each supported driver, add a "Device" and "Screen"
# section.
Section "Device"
Identifier "Device-nvidia[0]"
Driver "nvidia"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "Screen-nvidia[0]"
Device "Device-nvidia[0]"
Option "RandRRotation" "on"
Option "AllowEmptyInitialConfiguration"
EndSection
Section "Screen"
Identifier "Screen-amdgpu[0]"
Device "Device-amdgpu[0]"
EndSection
Section "Device"
Identifier "Device-amdgpu[0]"
Driver "amdgpu"
BusID "PCI:5:0:0"
EndSection
I’m on nixpkgs unstable with the latest kernel. The thing I noticed trying to fix the crash were:
- You need both the
amdgpuandnvidiavideo driver, or the explicit dependencies. (xf86videoamdgpu,…) - The order in which you declare and the drivers and the
Screen/Devicesections are not the same. Theamdgpuwill always be the first, resulting in errors. - The NVIDIA Screen must be the first with sync enabled. I would guess it should be the other way around for Reverse Prime.
I’m not sure whether this is the cause of the crash, but I think the problem
lies in how the dependencies and the final xorg.conf is generated.