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## page was renamed from Howto/NVIDIA_Optimus
## page was renamed from Howto/nVidia_Optimus
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There are additional steps needed to integrate the package with optimus. With Fedora 25 and later, NVIDIA Optimus devices are automatically detected.
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Also note that NVIDIA currently only support "outputsource" and not "offloadsink". It means that you cannot disable the dGPU (nvidia) This Howto is a subset of the main documentation, please read the [[Howto/NVIDIA|NVIDIA]] Howto first.
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!!! BIG FAT WARNING - This is still experimental documentation, only experimented users should follow.
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== GLVND enabled mesa ==
This will enable a version glvnd enabled mesa that will replace the fedora version.
== PRIME Synchronization ==
With Xorg server 1.19 (Fedora 25 and later), this feature allows buffer sharing between the Intel and the NVIDIA card. This is not enabled by default because it doesn't work for all cases.
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Note: Copr is not multilib compliant, you need to copy the x86_64 repo as a new file and replace "arch" to i386. if using 32bit programs.
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dnf copr enable kwizart/glvnd
dnf update
sudo grubby --update-kernel=ALL --args="nvidia-drm.modeset=1"
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== KMS for nvidia ==
Enable Kernel Mode Setting for nvidia-drm, this is needed for buffer sharing with the intel adapter:
Then you need to reboot with nvidia-drm modeset enabled
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grubby --update-kernel=$(uname -r) --args="nvidia-drm.modeset=1" --remove-args="video=vesa:off" randr --output <output> --set "PRIME Synchronization" 1
}}}
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 [ -f /boot/grub2/grub.cfg ] && grub2-mkconfig -o /boot/grub2/grub.cfg

 [ -f /boot/efi/EFI/fedora/grub.cfg ] && grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
If everything works as appropriate, you should consider to edit /etc/default/grub and add the ''nvidia-drm.modeset=1'' option to the GRUB_CMDLINE_LINUX_DEFAULT variable.
If something didn't get right. You can recover using ''e'' from the grub2 edit menu at boot time and manually remove that option. Then on the next boot, use:
{{{
sudo grubby --update-kernel=ALL --remove-args="nvidia-drm.modeset=1"
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== Additional Configuration ==
=== Fedora 25 ===
Not yet supported because xorg-server ABI but it should be simpler.

=== Fedora 24 ===
For Fedora 24, you still need a (complicated) xorg.conf:

'''Please verify to Update the BusID earch GPU, specially for the nvidia device.'''
{{{
cat>/etc/X11/xorg.conf<<EOF
# RPM Fusion - nvidia-xorg.conf
#

Section "ServerLayout"
    Identifier "layout"
    Screen 0 "nvidia"
    Inactive "intel"
EndSection

Section "Device"
    Identifier "intel"
    Driver "modesetting"
    # Change BusID if necessary. Tips: (lspci | grep VGA) (Change 00:02.0 to 0:2:0)
    BusID "PCI:0:2:0"
    Option "AccelMethod" "none"
EndSection

Section "Screen"
    Identifier "intel"
    Device "intel"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    # Change BusID if necessary. Tips: (lspci | grep 3D) (Change 01:00.0 to 1:0:0)
    BusID "PCI:1:0:0"
    Option "AllowEmptyInitialConfiguration"
EndSection

Section "Screen"
    Identifier "nvidia"
    Device "nvidia"
EndSection
EOF
== Known limitation ==
Please note that NVIDIA currently only support "outputsource" and not "offloadsink". It means that you cannot disable the dGPU (nvidia).
The current workaround is to reboot onto the free Software version using an alternative boot option menu.
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cat>/etc/X11/xinit/xinitrc.d/05-nvidia.sh<<EOF
#!/bin/bash
== Proprietary/FLOSS switch ==
At this time, this can be done by manually removing "rd.driver.blacklist=nouveau modprobe.blacklist=nouveau" from the grub2 cmdline.
The plan is to have a grub2 menu to have the choice. Please see [[https://bugzilla.rpmfusion.org/show_bug.cgi?id=4315|Bugzilla [RFE] Switcher for Xorg nvidia/FOSS config]]
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xrandr --setprovideroutputsource modesetting NVIDIA-0
xrandr --auto
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EOF
chmod +x /etc/X11/xinit/xinitrc.d/05-nvidia.sh

}}}

Others Display Manager tweaks, needed for GDM, KDM, LightDM, etc:

https://wiki.archlinux.org/index.php/NVIDIA_Optimus#Display_Managers
== FAQ ==
 *Q: Why there is no nvidia-prime package ?
 *A: nvidia-prime is not something from NVIDIA despite the name. It's a collection of integration scripts made by canonical for Ubuntu. Better to avoid using custom scripts and to have the driver to setup appropriately if on Optimus hardware or single GPU setup. With Fedora 25 and later, everything is automatically setup.

Introduction

With Fedora 25 and later, NVIDIA Optimus devices are automatically detected.

This Howto is a subset of the main documentation, please read the NVIDIA Howto first.

PRIME Synchronization

With Xorg server 1.19 (Fedora 25 and later), this feature allows buffer sharing between the Intel and the NVIDIA card. This is not enabled by default because it doesn't work for all cases.

sudo grubby --update-kernel=ALL --args="nvidia-drm.modeset=1"

Then you need to reboot with nvidia-drm modeset enabled

randr --output <output> --set "PRIME Synchronization" 1

If everything works as appropriate, you should consider to edit /etc/default/grub and add the nvidia-drm.modeset=1 option to the GRUB_CMDLINE_LINUX_DEFAULT variable. If something didn't get right. You can recover using e from the grub2 edit menu at boot time and manually remove that option. Then on the next boot, use:

sudo grubby --update-kernel=ALL --remove-args="nvidia-drm.modeset=1"

Known limitation

Please note that NVIDIA currently only support "outputsource" and not "offloadsink". It means that you cannot disable the dGPU (nvidia). The current workaround is to reboot onto the free Software version using an alternative boot option menu.

Proprietary/FLOSS switch

At this time, this can be done by manually removing "rd.driver.blacklist=nouveau modprobe.blacklist=nouveau" from the grub2 cmdline. The plan is to have a grub2 menu to have the choice. Please see Bugzilla [RFE] Switcher for Xorg nvidia/FOSS config

FAQ

  • Q: Why there is no nvidia-prime package ?
  • A: nvidia-prime is not something from NVIDIA despite the name. It's a collection of integration scripts made by canonical for Ubuntu. Better to avoid using custom scripts and to have the driver to setup appropriately if on Optimus hardware or single GPU setup. With Fedora 25 and later, everything is automatically setup.

References

Howto/Optimus (last edited 2023-11-14 09:37:58 by anonymous)