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# NVIDIA (Magyar)

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Fordítás állapota: Ez az oldal az angol NVIDIA című oldal magyar nyelvre lefordított változata. Utolsó fordítás dátuma: 2025.11.27. Amennyiben a lefordítás időpontja óta az angol nyelvű oldalon történtek újabb módosítások, akkor Ön segíthet hozzászinkronizálni az angolhoz ezt a magyar nyelvű fordítást.

Adott témakörhöz kapcsolódó oldalak

- NVIDIA/Tips and tricks
- NVIDIA/Troubleshooting
- Nouveau
- NVIDIA Optimus
- PRIME
- Bumblebee
- nvidia-xrun
- Xorg (Magyar)
- Vulkan (Magyar)

This article covers the official NVIDIA graphics card drivers. For the community open-source driver, see Nouveau. If you have a laptop with hybrid graphics, see also NVIDIA Optimus.

## Telepítés

Figyelmeztetés Avoid installing the NVIDIA driver through the package provided from the NVIDIA website. Installation through pacman allows upgrading the driver together with the rest of the system.
Megjegyzés When dual booting on a system with hybrid graphics, enabling Windows or third-party apps Eco mode (like ASUS Eco mode) may fully disable the NVIDIA discrete GPU, making it undetectable.

First, find the family of your card (e.g. NV110, NVC0, etc.) on nouveau wiki's code names page corresponding to its model/official name obtained with:

    $ lspci -k -d ::03xx

Then, install the appropriate driver for your card:

GPU family | Driver | Status
--- | --- | ---
Turing (NV160/TUXXX) and newer | nvidia-open for linux nvidia-open-lts for linux-lts nvidia-open-dkms for any kernel(s) | Recommended by upstream Current, supported1 Possible power management issue on Turing2
Maxwell (NV110/GMXXX) through Ada Lovelace (NV190/ADXXX) | nvidia[Hibás hivatkozás: package not found] for linux nvidia-lts[Hibás hivatkozás: package not found] for linux-lts nvidia-dkms[Hibás hivatkozás: replaced by nvidia-open-dkms] for any kernel(s) | Current, supported1
Kepler (NVE0/GKXXX) | nvidia-470xx-dkmsAUR | Legacy, unsupported3,4
Fermi (NVC0/GF1XX) | nvidia-390xx-dkmsAUR
Tesla (NV50/G80-90-GT2XX) | nvidia-340xx-dkmsAUR
Curie (NV40/G70) and older | No longer packaged

1. If these packages do not work, it is usually due to new hardware releases. nvidia-open-betaAUR may have a newer driver version that offers support.
2. NVIDIA's open kernel modules cannot enable D3 Power Management on Turing. This reduces battery life on notebooks with Turing in an NVIDIA Optimus configuration. Use the proprietary module (e.g. nvidia[Hibás hivatkozás: package not found]) with module parameter `NVreg_EnableGpuFirmware=0` instead. More information about this issue.
3. May not function correctly on Linux 5.18 (or later) on systems with Intel CPUs 11th Gen and newer due an incompatibility with Indirect Branch Tracking. You can disable it by setting the `ibt=off` kernel parameter from the boot loader. Be aware, this security feature is responsible for mitigating a class of exploit techniques.
4. NVIDIA no longer actively supports these cards and their drivers may not officially support the current Xorg version. It might be easier to use the nouveau driver; however, NVIDIA's legacy drivers are still available and might provide better 3D performance/stability.

  Megjegyzés
  - When installing dkms, read Dynamic Kernel Module Support#Installation.
  - The DKMS variants are not tied to a specific kernel, as they recompile the NVIDIA kernel module for each kernel for which header files are installed.

For 32-bit application support, also install the corresponding lib32 package from the multilib repository (e.g. lib32-nvidia-utils).

The nvidia-utils package contains a file which blacklists the `nouveau` module once you reboot. Optionally, you can also remove `kms` from the `HOOKS` array in `/etc/mkinitcpio.conf` and regenerate the initramfs. This will prevent the initramfs from containing the `nouveau` module making sure the kernel cannot load it during early boot.

Megjegyzés If you are using Wayland you should not restart until after following #DRM kernel mode setting or you may end up with a black screen.

Once the driver has been installed, continue to #Xorg configuration or #Wayland configuration.

### Custom kernel

Ensure your kernel has `CONFIG_DRM_SIMPLEDRM=y`, and if using `CONFIG_DEBUG_INFO_BTF` then this is needed in the PKGBUILD (since kernel 5.16):

    install -Dt "$builddir/tools/bpf/resolve_btfids" tools/bpf/resolve_btfids/resolve_btfids

If your kernel is compiled with `CONFIG_NOVA_CORE` enabled, you may need to prevent the new NVIDIA GPU driver Nova from loading. nvidia-utils adds it to the blacklist by default. You can check this by running systemd-analyze. If you have installed a different version of the driver, you may need to blacklist the `nova_core` and `nova_drm` modules manually.

### DRM kernel mode setting

Since NVIDIA does not support automatic KMS late loading, enabling DRM (Direct Rendering Manager) kernel mode setting is required to make Wayland compositors function properly.

Starting from nvidia-utils 560.35.03-5, DRM defaults to enabled.[1] For older drivers, set the `modeset=1` kernel module parameter for the `nvidia_drm` module.

To verify that DRM is actually enabled, execute the following:

    # cat /sys/module/nvidia_drm/parameters/modeset

Which should now return `Y`, and not `N`.

Megjegyzés Kernels officially supported by Arch enable `simpledrm`, while NVIDIA driver requires `efifb` or `vesafb` when `nvidia_drm.fbdev` is disabled/unavailable (version < 545).

#### Early loading

For basic functionality, just adding the kernel parameter should suffice. If you want to ensure it is loaded as early as possible, or you are noticing startup issues (such as the `nvidia` kernel module being loaded after the display manager), you can add `nvidia`, `nvidia_modeset`, `nvidia_uvm` and `nvidia_drm` to the initramfs. See Kernel module#Early module loading to learn how to configure your initramfs generator. mkinitcpio users after v40 version does not need to perform manual initramfs regeneration as built-in hook will already do this automatically.

### Hardware accelerated video decoding

Accelerated video decoding with VDPAU is supported on GeForce 8 series cards and newer. Accelerated video decoding with NVDEC is supported on Fermi (~400 series) cards and newer. See Hardware video acceleration for details.

### Hardware accelerated video encoding with NVENC

NVENC requires the `nvidia_uvm` module and the creation of related device nodes under `/dev`.

The latest driver package provides a udev rule which creates device nodes automatically, so no further action is required.

If you are using an old driver (e.g. nvidia-340xx-dkmsAUR), you need to create device nodes. Invoking the `nvidia-modprobe` utility automatically creates them. You can create `/etc/udev/rules.d/70-nvidia.rules` to run it automatically:

    /etc/udev/rules.d/70-nvidia.rules

    ACTION=="add", DEVPATH=="/bus/pci/drivers/nvidia", RUN+="/usr/bin/nvidia-modprobe -c 0 -u"

## Wayland configuration

Regarding Xwayland take a look at Wayland#Xwayland.

For further configuration options, take a look at the wiki pages or documentation of the respective compositor.

Megjegyzés Prior to driver version 555.xx, or when using a Wayland compositor that does not support Explicit Sync via the `linux-drm-syncobj-v1` protocol, the NVIDIA driver can have major issues manifesting as flickering, out of order frames, and more, in both native Wayland and Xwayland applications.

### Basic support

There are two kernel parameters for the `nvidia_drm` module to be considered: `modeset` and `fbdev`. Both are enabled by default when using the nvidia-utils package. NVIDIA also plans to enable them by default in a future release.

#### modeset

Enabling `modeset` is necessary for all Wayland configurations to function properly.

For unsupported drivers, where `modeset` needs to be enabled manually, see #DRM kernel mode setting, and Wayland#Requirements for more information.

#### fbdev

This article or section is out of date.

Reason: As of linux 6.14.2 and nvidia[Hibás hivatkozás: package not found] 570.133.07 Wayland seems to work well with fbdev disabled and the `cat` command can return `N`, so this section is probably only relevant for older versions of the driver. (Discuss in Talk:NVIDIA (Magyar))

Enabling `fbdev` is necessary for some Wayland configurations.

It is specifically a hard requirement on Linux 6.11 and later, but it is currently unclear whether this is intended behavior or a bug, see [2] for more details.

It can be set the same way as the modesetting parameter, with the difference that executing:

    # cat /sys/module/nvidia_drm/parameters/fbdev

Will return a missing file error if it is not set at all, instead of `N`.

### Suspend support

Wayland suspend can suffer from the defaults more than X does, see /Tips and tricks#Preserve video memory after suspend for details.

If you use GDM, also see GDM#Wayland and the proprietary NVIDIA driver.

### nvidia-application-profiles-rc.d

Some wayland compositors will consume a large quantity of VRAM by default if the GLVidHeapReuseRatio application profile key is not applied against their process name. For example, niri users can free up to ~2.5GiB of idle vram consumption with the following:

    /etc/nvidia/nvidia-application-profiles-rc.d/50-limit-free-buffer-pool-in-wayland-compositors.json

    {
        "rules": [
            {
                "pattern": {
                    "feature": "procname",
                    "matches": "niri"
                },
                "profile": "Limit free buffer pool on Wayland compositors"
            }
        ],
        "profiles": [
            {
                "name": "Limit free buffer pool on Wayland compositors",
                "settings": [
                    {
                        "key": "GLVidHeapReuseRatio",
                        "value": 0
                    }
                ]
            }
        ]
    }

## Xorg configuration

The proprietary NVIDIA graphics card driver does not need any Xorg server configuration file. You can start X to see if the Xorg server will function correctly without a configuration file. However, it may be required to create a configuration file (prefer `/etc/X11/xorg.conf.d/20-nvidia.conf` over `/etc/X11/xorg.conf`) in order to adjust various settings. This configuration can be generated by the NVIDIA Xorg configuration tool, or it can be created manually. If created manually, it can be a minimal configuration (in the sense that it will only pass the basic options to the Xorg server), or it can include a number of settings that can bypass Xorg's auto-discovered or pre-configured options.

Tipp For more configuration options, see NVIDIA/Troubleshooting.

### Automatic configuration

The NVIDIA package includes an automatic configuration tool to create an Xorg server configuration file (`xorg.conf`) and can be run by:

    # nvidia-xconfig

This command will auto-detect and create (or edit, if already present) the `/etc/X11/xorg.conf` configuration according to present hardware.

Double-check your `/etc/X11/xorg.conf` to make sure your default depth, horizontal sync, vertical refresh, and resolutions are acceptable.

### nvidia-settings

The nvidia-settings tool lets you configure many options using either CLI or GUI. Running `nvidia-settings` without any options launches the GUI, for CLI options see nvidia-settings(1).

You can run the CLI/GUI as a non-root user and save the settings to `~/.nvidia-settings-rc` by using the option Save Current Configuration under nvidia-settings Configuration tab.

To load the `~/.nvidia-settings-rc` for the current user:

    $ nvidia-settings --load-config-only

See Autostarting to start this command on every boot.

Megjegyzés Xorg may not start or crash on startup after saving `nvidia-settings` changes. Adjusting or deleting the generated `~/.nvidia-settings-rc` and/or Xorg file(s) should recover normal startup.

### Manual configuration

Several tweaks (which cannot be enabled automatically or with nvidia-settings) can be performed by editing your configuration file. The Xorg server will need to be restarted before any changes are applied.

See NVIDIA Accelerated Linux Graphics Driver README and Installation Guide for additional details and options.

#### Minimal configuration

A basic configuration block in `20-nvidia.conf` (or deprecated in `xorg.conf`) would look like this:

    /etc/X11/xorg.conf.d/20-nvidia.conf

    Section "Device"
            Identifier "NVIDIA Card"
            Driver "nvidia"
            VendorName "NVIDIA Corporation"
            BoardName "GeForce GTX 1050 Ti"
    EndSection

#### Disabling the logo on startup

If you are using an old driver (nvidia-340xx-dkmsAUR), you may want to disable the NVIDIA logo splash screen that is displayed at X startup. Add the `"NoLogo"` option under section `Device`:

    Option "NoLogo" "1"

#### Overriding monitor detection

The `"ConnectedMonitor"` option under section `Device` allows overriding monitor detection when X server starts, which may save a significant amount of time at start up. The available options are: `"CRT"` for analog connections, `"DFP"` for digital monitors and `"TV"` for televisions.

The following statement forces the NVIDIA driver to bypass startup checks and recognize the monitor as DFP:

    Option "ConnectedMonitor" "DFP"

Megjegyzés Use "CRT" for all analog 15 pin VGA connections, even if the display is a flat panel. "DFP" is intended for DVI, HDMI, or DisplayPort digital connections only.

#### Enabling brightness control

This article or section is out of date.

Reason: Potentially obsolete[3], upstream package also seems to be ancient. (Discuss in Talk:NVIDIA (Magyar))

Add to kernel parameters:

    nvidia.NVreg_RegistryDwords=EnableBrightnessControl=1

Alternatively, add the following under section `Device`:

    Option "RegistryDwords" "EnableBrightnessControl=1"

If brightness control still does not work with this option, try installing nvidia-bl-dkmsAUR.

Megjegyzés Installing nvidia-bl-dkmsAUR will provide a `/sys/class/backlight/nvidia_backlight/` interface to backlight brightness control, but your system may continue to issue backlight control changes on `/sys/class/backlight/acpi_video0/`. One solution in this case is to watch for changes on, e.g. `acpi_video0/brightness` with inotifywait and to translate and write to `nvidia_backlight/brightness` accordingly. See Backlight#sysfs modified but no brightness change.

#### Enabling SLI

This article or section is out of date.

Reason: Since version 455.23.04, some SLI modes are no longer supported. (Discuss in Talk:NVIDIA (Magyar))
Figyelmeztetés Since the GTX 10xx Series (1080, 1070, 1060, etc) only 2-way SLI is supported. 3-way and 4-way SLI may work for CUDA/OpenCL applications, but will most likely break all OpenGL applications.

Taken from the NVIDIA driver's README Appendix B: This option controls the configuration of SLI rendering in supported configurations. A "supported configuration" is a computer equipped with an SLI-Certified Motherboard and 2 or 3 SLI-Certified GeForce GPUs.

Find the first GPU's PCI Bus ID using `lspci`:

    # lspci -d ::03xx

    00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09)
    03:00.0 VGA compatible controller: NVIDIA Corporation GK107 [GeForce GTX 650] (rev a1)
    04:00.0 VGA compatible controller: NVIDIA Corporation GK107 [GeForce GTX 650] (rev a1)
    08:00.0 3D controller: NVIDIA Corporation GM108GLM [Quadro K620M / Quadro M500M] (rev a2)

Add the BusID (3 in the previous example) under section `Device`:

    BusID "PCI:3:0:0"

Megjegyzés The format is important. The BusID value must be specified as `"PCI:<BusID>:0:0"`

Add the desired SLI rendering mode value under section `Screen`:

    Option "SLI" "AA"

The following table presents the available rendering modes.

Value | Behavior
--- | ---
0, no, off, false, Single | Use only a single GPU when rendering.
1, yes, on, true, Auto | Enable SLI and allow the driver to automatically select the appropriate rendering mode.
AFR | Enable SLI and use the alternate frame rendering mode.
SFR | Enable SLI and use the split frame rendering mode.
AA | Enable SLI and use SLI antialiasing. Use this in conjunction with full scene antialiasing to improve visual quality.

Alternatively, you can use the nvidia-xconfig utility to insert these changes into `xorg.conf` with a single command:

    # nvidia-xconfig --busid=PCI:3:0:0 --sli=AA

To verify that SLI mode is enabled from a shell:

    $ nvidia-settings -q all | grep SLIMode

      Attribute 'SLIMode' (arch:0.0): AA
        'SLIMode' is a string attribute.
        'SLIMode' is a read-only attribute.
        'SLIMode' can use the following target types: X Screen.

Figyelmeztetés After enabling SLI, your system may become frozen/non-responsive upon starting xorg. It is advisable that you disable your display manager before restarting.

If this configuration does not work, you may need to use the PCI Bus ID provided by `nvidia-settings`,

    $ nvidia-settings -q all | grep -i pcibus

    Attribute 'PCIBus' (host:0[gpu:0]): 101.
      'PCIBus' is an integer attribute.
      'PCIBus' is a read-only attribute.
      'PCIBus' can use the following target types: GPU, SDI Input Device.
    Attribute 'PCIBus' (host:0[gpu:1]): 23.
      'PCIBus' is an integer attribute.
      'PCIBus' is a read-only attribute.
      'PCIBus' can use the following target types: GPU, SDI Input Device.

and comment out the PrimaryGPU option in your xorg.d configuration,

    /usr/share/X11/xorg.conf.d/10-nvidia-drm-outputclass.conf

    ...

    Section "OutputClass"
    ...
        # Option "PrimaryGPU" "yes"
    ...

Using this configuration may also solve any graphical boot issues.

### Multiple monitors

See Multihead for more general information.

#### Using nvidia-settings

The nvidia-settings tool can configure multiple monitors.

For CLI configuration, first get the `CurrentMetaMode` by running:

    $ nvidia-settings -q CurrentMetaMode

    Attribute 'CurrentMetaMode' (hostnmae:0.0): id=50, switchable=no, source=nv-control :: DPY-1: 2880x1620 @2880x1620 +0+0 {ViewPortIn=2880x1620, ViewPortOut=2880x1620+0+0}

Save everything after the `::` to the end of the attribute (in this case: `DPY-1: 2880x1620 @2880x1620 +0+0 {ViewPortIn=2880x1620, ViewPortOut=2880x1620+0+0}`) and use to reconfigure your displays with `nvidia-settings --assign "CurrentMetaMode=your_meta_mode"`.

Tipp You can create shell aliases for the different monitor and resolution configurations you use.

#### ConnectedMonitor

This article or section is out of date.

Reason: `Option "TwinView"` is removed in 302.07, and TwinView is always enabled, this configuration needs to be rewritten. (Discuss in Talk:NVIDIA (Magyar))

If the driver does not properly detect a second monitor, you can force it to do so with ConnectedMonitor.

    /etc/X11/xorg.conf

    Section "Monitor"
        Identifier     "Monitor1"
        VendorName     "Panasonic"
        ModelName      "Panasonic MICRON 2100Ex"
        HorizSync       30.0 - 121.0 # this monitor has incorrect EDID, hence Option "UseEDIDFreqs" "false"
        VertRefresh     50.0 - 160.0
        Option         "DPMS"
    EndSection

    Section "Monitor"
        Identifier     "Monitor2"
        VendorName     "Gateway"
        ModelName      "GatewayVX1120"
        HorizSync       30.0 - 121.0
        VertRefresh     50.0 - 160.0
        Option         "DPMS"
    EndSection

    Section "Device"
        Identifier     "Device1"
        Driver         "nvidia"
        Option         "NoLogo"
        Option         "UseEDIDFreqs" "false"
        Option         "ConnectedMonitor" "CRT,CRT"
        VendorName     "NVIDIA Corporation"
        BoardName      "GeForce 6200 LE"
        BusID          "PCI:3:0:0"
        Screen          0
    EndSection

    Section "Device"
        Identifier     "Device2"
        Driver         "nvidia"
        Option         "NoLogo"
        Option         "UseEDIDFreqs" "false"
        Option         "ConnectedMonitor" "CRT,CRT"
        VendorName     "NVIDIA Corporation"
        BoardName      "GeForce 6200 LE"
        BusID          "PCI:3:0:0"
        Screen          1
    EndSection

The duplicated device with `Screen` is how you get X to use two monitors on one card without `TwinView`. Note that `nvidia-settings` will strip out any `ConnectedMonitor` options you have added.

#### TwinView

This article or section is out of date.

Reason: `Option "TwinView"` is removed in 302.07, and TwinView is always enabled. (Discuss in Talk:NVIDIA (Magyar))

You want only one big screen instead of two. Set the `TwinView` argument to `1`. This option should be used if you desire compositing. TwinView only works on a per-card basis, when all participating monitors are connected to the same card.

    Option "TwinView" "1"

Example configuration:

    /etc/X11/xorg.conf.d/10-monitor.conf

    Section "ServerLayout"
        Identifier     "TwinLayout"
        Screen         0 "metaScreen" 0 0
    EndSection

    Section "Monitor"
        Identifier     "Monitor0"
        Option         "Enable" "true"
    EndSection

    Section "Monitor"
        Identifier     "Monitor1"
        Option         "Enable" "true"
    EndSection

    Section "Device"
        Identifier     "Card0"
        Driver         "nvidia"
        VendorName     "NVIDIA Corporation"

        #refer to the link below for more information on each of the following options.
        Option         "HorizSync"          "DFP-0: 28-33; DFP-1: 28-33"
        Option         "VertRefresh"        "DFP-0: 43-73; DFP-1: 43-73"
        Option         "MetaModes"          "1920x1080, 1920x1080"
        Option         "ConnectedMonitor"   "DFP-0, DFP-1"
        Option         "MetaModeOrientation" "DFP-1 LeftOf DFP-0"
    EndSection

    Section "Screen"
        Identifier     "metaScreen"
        Device         "Card0"
        Monitor        "Monitor0"
        DefaultDepth    24
        Option         "TwinView" "True"
        SubSection "Display"
            Modes          "1920x1080"
        EndSubSection
    EndSection

Device option information.

If you have multiple cards that are SLI capable, it is possible to run more than one monitor attached to separate cards (for example: two cards in SLI with one monitor attached to each). The "MetaModes" option in conjunction with SLI Mosaic mode enables this. Below is a configuration which works for the aforementioned example and runs GNOME flawlessly.

    /etc/X11/xorg.conf.d/10-monitor.conf

    Section "Device"
            Identifier      "Card A"
            Driver          "nvidia"
            BusID           "PCI:1:00:0"
    EndSection

    Section "Device"
            Identifier      "Card B"
            Driver          "nvidia"
            BusID           "PCI:2:00:0"
    EndSection

    Section "Monitor"
            Identifier      "Right Monitor"
    EndSection

    Section "Monitor"
            Identifier      "Left Monitor"
    EndSection

    Section "Screen"
            Identifier      "Right Screen"
            Device          "Card A"
            Monitor         "Right Monitor"
            DefaultDepth    24
            Option          "SLI" "Mosaic"
            Option          "Stereo" "0"
            Option          "BaseMosaic" "True"
            Option          "MetaModes" "GPU-0.DFP-0: 1920x1200+4480+0, GPU-1.DFP-0:1920x1200+0+0"
            SubSection      "Display"
                            Depth           24
            EndSubSection
    EndSection

    Section "Screen"
            Identifier      "Left Screen"
            Device          "Card B"
            Monitor         "Left Monitor"
            DefaultDepth    24
            Option          "SLI" "Mosaic"
            Option          "Stereo" "0"
            Option          "BaseMosaic" "True"
            Option          "MetaModes" "GPU-0.DFP-0: 1920x1200+4480+0, GPU-1.DFP-0:1920x1200+0+0"
            SubSection      "Display"
                            Depth           24
            EndSubSection
    EndSection

    Section "ServerLayout"
            Identifier      "Default"
            Screen 0        "Right Screen" 0 0
            Option          "Xinerama" "0"
    EndSection

##### Vertical sync using TwinView

If you are using TwinView and vertical sync (the Sync to VBlank option in `nvidia-settings`), you will notice that only one screen is being properly synced, unless you have two identical monitors. Although `nvidia-settings` does offer an option to change which screen is being synced (the Sync to this display device option), this does not always work. A solution is to add the following environment variables at startup, for example append in `/etc/profile`:

    export __GL_SYNC_TO_VBLANK=1
    export __GL_SYNC_DISPLAY_DEVICE=DFP-0
    export VDPAU_NVIDIA_SYNC_DISPLAY_DEVICE=DFP-0

You can change `DFP-0` with your preferred screen (`DFP-0` is the DVI port and `CRT-0` is the VGA port). You can find the identifier for your display from `nvidia-settings` in the X Server XVideoSettings section.

##### Játszás TwinView használatával

Abban az esetben, ha Ön teljes képernyős játékokat szeretne játszani TwinView használata közben, észre fogja venni, hogy a játékok a két képernyőt egy nagy képernyőként ismerik fel. Bár ez technikailag helyes (a virtuális X képernyő valóban az Ön képernyőinek kombinált mérete), valószínűleg nem szeretne egyszerre mindkét képernyőn játszani.

Az SDL 1.2 esetében a viselkedés korrigálásához próbálja meg:

    export SDL_VIDEO_FULLSCREEN_HEAD=1

OpenGL esetében adja hozzá a megfelelő Metamodes beállításokat az Ön xorg.conf fájljában a `Device` szekcióhoz, majd indítsa újra az X-szervert:

    Option "Metamodes" "1680x1050,1680x1050; 1280x1024,1280x1024; 1680x1050,NULL; 1280x1024,NULL;"

Egy másik módszer, amely önmagában vagy a fent említettekkel együtt is működhet, a játékok indítása külön X-szerveren.

#### Mosaic mode

Mosaic mode is the only way to use more than 2 monitors across multiple graphics cards with compositing. Your window manager may or may not recognize the distinction between each monitor. Mosaic mode requires a valid SLI configuration. Even if using Base mode without SLI, the GPUs must still be SLI capable/compatible.

##### Base Mosaic

Base Mosaic mode works on any set of Geforce 8000 series or higher GPUs. It cannot be enabled from within the nvidia-setting GUI. You must either use the nvidia-xconfig command line program or edit `xorg.conf` by hand. Metamodes must be specified. The following is an example for four DFPs in a 2x2 configuration, each running at 1920x1024, with two DFPs connected to two cards:

    # nvidia-xconfig --base-mosaic --metamodes="GPU-0.DFP-0: 1920x1024+0+0, GPU-0.DFP-1: 1920x1024+1920+0, GPU-1.DFP-0: 1920x1024+0+1024, GPU-1.DFP-1: 1920x1024+1920+1024"

Megjegyzés While the documentation lists a 2x2 configuration of monitors, GeForce cards are artificially limited to 3 monitors in Base Mosaic mode. Quadro cards support more than 3 monitors. As of September 2014, the Windows driver has dropped this artificial restriction, but it remains in the Linux driver.

##### SLI Mosaic

If you have an SLI configuration and each GPU is a Quadro FX 5800, Quadro Fermi or newer, then you can use SLI Mosaic mode. It can be enabled from within the nvidia-settings GUI or from the command line with:

    # nvidia-xconfig --sli=Mosaic --metamodes="GPU-0.DFP-0: 1920x1024+0+0, GPU-0.DFP-1: 1920x1024+1920+0, GPU-1.DFP-0: 1920x1024+0+1024, GPU-1.DFP-1: 1920x1024+1920+1024"

## NVswitch

This article or section needs language, wiki syntax or style improvements. See Help:Style for reference.

Reason: Multiple little fixes needed, the instructions about fabric manager should be made into an AUR package. (Discuss in Talk:NVIDIA (Magyar))

For systems with NVswitch, like H100x8 on AWS, the following is need.

- install nvidia-fabricmanager
- install matching kernel module needed by the fabric manager

With the fabricmanager, pytorch would report no GPU is found.

To install the fabric manager:

1. download the tarball from nvidia. here
2. version 555.42.02 works well
3. modify the install script in sbin/fm_run_package_installer.sh to fix the installed file path

To get the matching kernel driver:

1. git clone the AUR for nvidia-beta-dkms and nvidia-utils-beta
2. change the PKGBUILD to use version 555.42.02
3. build and install them
4. reboot

finally, `systemctl enable nvidia-fabricmanager` and `systemctl start nvidia-fabricmanager`, then pytorch should work.

## Tippek és trükkök

Tekintse meg az NVIDIA/Tips and tricks című leírást.

## Troubleshooting

See NVIDIA/Troubleshooting.

## További olvasnivaló a témában

- Current graphics driver releases in official NVIDIA Forum
- NVIDIA Developers Forum - Linux Subforum

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- X server (Magyar)

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