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- 1 インストール
- 2 設定
- 3 Tweaking
- 3.1 GUI: nvidia-settings
- 3.2 Advanced: xorg.conf
- 3.2.1 Enabling desktop composition
- 3.2.2 Disabling the logo on startup
- 3.2.3 Enabling hardware acceleration
- 3.2.4 Overriding monitor detection
- 3.2.5 Enabling triple buffering
- 3.2.6 Using OS-level events
- 3.2.7 Enabling power saving
- 3.2.8 Forcing Powermizer performance level (for laptops)
- 3.2.9 Disable vblank interrupts (for laptops)
- 3.2.10 Enabling overclocking
- 3.2.11 Enable screen rotation through XRandR
- 4 Tips and tricks
- 5 Troubleshooting
- 5.1 Gaming using Twinview
- 5.2 Old Xorg Settings
- 5.3 Corrupted screen: "Six screens" issue
- 5.4 '/dev/nvidia0' Input/Output error
- 5.5 '/dev/nvidiactl' errors
- 5.6 32 bit applications do not start
- 5.7 Errors after updating the kernel
- 5.8 Crashing in general
- 5.9 Bad performance after installing a new driver version
- 5.10 CPU spikes with 400 series cards
- 5.11 Laptops: X hangs on login/out, worked around with Ctrl+Alt+Backspace
- 5.12 Refresh rate not detected properly by XRandR dependant utilities
- 6 External links
以下は、stock kernel26 パッケージを使っている人向けの指示です。カスタム kernel のセットアップには、next サブセクションまで読み飛ばしてください。
1. NVIDIA の driver download site を訪れて、お持ちのビデオカードに合ったドライバを見つけてください。
2. 新しめのビデオカード (GF FX の後に出た最新の GPU) 用のドライバをインストールします:
# pacman -S nvidia nvidia-utils
古めのビデオカード (Geforce FX シリーズ) をお持ちのユーザは以下をインストールします:
# pacman -S nvidia-173xx nvidia-173xx-utils
あるいは、(GF 4 までのビデオカードの場合):
# pacman -S nvidia-96xx nvidia-96xx-utils
ドライバがインストールされたら、続けて #設定 へと進んでください。
カスタム kernel の場合のインストール方法
以下の内容は、ABS を使用する NVIDIA ドライバのカスタムパッケージを作るための簡単なチュートリアルです:
# pacman -S abs # abs
$ mkdir -p ~/devel/abs
$ cp -r /var/abs/extra/nvidia/ ~/devel/abs/
$ cd ~/devel/abs/nvidia
$ uname -r
- nvidia.install にある、
- PKGBUILD にある,
- 一つ以上のカーネルが並行してシステムにインストールされてるなら、(デフォルトの －ARCH kernel とカスタムカーネルが並ぶように) PKGBUILD の
"pkgname=nvidia"変数を一意な識別子、例えば nvidia-2622 や nvidia-custom へと変更します。こうすることで、カスタム NVIDIA モジュールは異なるパッケージ名となり、オリジナルのパッケージを上書きしないようになるので、両方のカーネルが NVIDIA モジュールを使えるようにできます。
$ makepkg -ci
-c オプションは、NVIDIA ドライバのビルドが終わった後にファイルを片付けるように makepkg に伝え、また、
-i は makepkg が自動で pacman を起動して出来あがったパッケージをインストールするように指示するものです。
おそらく、ドライバをインストールした後に Xorg server の設定ファイルを作成する必要はないかもしれません。Xorg server が設定ファイルなしできちんと機能してるかどうか調べるために、 a test を実行することができます。しかし、様々な設定を調節するために、
/etc/X11/xorg.conf を作成することが要求されるかもしれません。この設定は NVIDIA Xorg 設定ツールで生成できますし、あるいは、手動でも作成できます。手動で作成された場合、最小の設定 (Xorg server に基本的なオプションだけを与えるという意味です。) となるか、自動検知されたか事前に設定された Xorg のオプションを迂回できる 設定を含みます。
The NVIDIA package includes an automatic configuration tool to create an Xorg server configuration file (
xorg.conf) and can be run by:
This command will auto-detect and create (or edit, if already present) the
/etc/X11/xorg.conf configuration according to present hardware.
If there are instances of DRI, ensure they are commented out:
# Load "dri"
Double check your
/etc/X11/xorg.conf to make sure your default depth, horizontal sync, vertical refresh, and resolutions are acceptable.
Automatic configuration with multiple monitors
The NVIDIA package provides Twinview. This tool will help by automatically configuring all the monitors connected to your video card. This only works for multiple monitors on a single card. To configure Xorg Server with Twinview run:
# nvidia-xconfig --twinview
To create a basic
/etc/X11/xorg.conf, as root:
# vi /etc/X11/xorg.conf
And add the driver:
Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" EndSection
The NVIDIA package includes the
nvidia-settings program that allows adjustment of several additional settings.
For the settings to be loaded on login, run this command from the terminal:
$ nvidia-settings --load-config-only
Or add it to the the desktop environment's auto-startup method.
/etc/X11/xorg.conf, and add the option to the correct section. NVIDIA tests and ships the drivers with the recommended setting so note that some edits may cause instability, tearing, among other problems. Since not all options may work for a given system, consider backing up
xorg.conf before making any edits. 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.]
Enabling desktop composition
As of NVIDIA driver version 180.44, support for GLX with the Damage and Composite X extensions is enabled by default. Refer to Composite for detailed instructions.
Disabling the logo on startup
"NoLogo" option under section
Option "NoLogo" "1"
Enabling hardware acceleration
"RenderAccel" option under section
Option "RenderAccel" "1"
Overriding monitor detection
"ConnectedMonitor" option under section
Device allows to override 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"
Enabling triple buffering
Enable the use of triple buffering by adding the
"TripleBuffer" Option under section
Option "TripleBuffer" "1"
Use this option if the graphics card has plenty of ram (equal or greater than 128MB). The setting only takes effect when syncing to vblank is enabled, one of the options featured in nvidia-settings.
Using OS-level events
Taken from the NVIDIA driver's README file: "[...] Use OS-level events to efficiently notify X when a client has performed direct rendering to a window that needs to be composited." It may help improving performance, but it is currently incompatible with SLI and Multi-GPU modes.
Add under section
Option "DamageEvents" "1"
Enabling power saving
Add under section
Option "DPMS" "1"
Forcing Powermizer performance level (for laptops)
Add under section
# Force Powermizer to a certain level at all times # level 0x1=highest # level 0x2=med # level 0x3=lowest
# AC settings: Option "RegistryDwords" "PowerMizerLevelAC=0x3" # Battery settings: Option "RegistryDwords" "PowerMizerLevel=0x3"
Settings are better explained in NVIDIA Driver for X.org:Performance and Power Saving Hints.
Letting the GPU set its own performance level based on temperature
Add under section
Option "RegistryDwords" "PerfLevelSrc=0x3333"
Disable vblank interrupts (for laptops)
When running the interrupt detection utility
powertop, it can be observed that the Nvidia driver will generate an interrupt for every vblank. To disable, place in the
Option "OnDemandVBlankInterrupts" "1"
This will reduce interrupts to about one or two per second.
To enable GPU and memory overclocking, place the following line in the
Option "Coolbits" "1"
This will enable on-the-fly overclocking within an X session by running:
Setting static 2D/3D clocks
Set the following string in the
Device section to enable PowerMizer at its maximum performance level:
Option "RegistryDwords" "PerfLevelSrc=0x2222"
Set one of the following two strings in the
Device section to enable manual GPU fan control within
Option "Coolbits" "4"
Option "Coolbits" "5"
Enable screen rotation through XRandR
Place the following line in the
Option "RandRRotation" "True"
After restarting Xorg:
$ xrandr -o left
The Screen should be rotated. To restore:
$ xrandr -o normal
Tips and tricks
Enabling Pure Video HD (VDPAU/VAAPI)
At least a video card with second generation PureVideo HD 
Nvidia video cards with the proprietary driver installed will provide video decoding capabilities with the VDPAU interface at different levels according to PureVideo generation.
You can also add support for the VA-API interface with:
# pacman -S vdpau-video
Check VA-API support with:
To take full advantage of the hardware decoding capability of your video card you will need a media player that supports VDPAU or VA-API.
To enable hardware acceleration in MPlayer edit ~/.mplayer/config
To enable hardware acceleration in VLC go:
Tools -> Settings -> Videos and codec -> check "Use GPU acceleration"
To enable hardware acceleration in smplayer go:
Options -> Preferences -> General -> Video Tab -> select vdpau as output driver
To enable hardware acceleration in gnome-mplayer go:
Edit -> Preferences -> set video output to vdpau
Playing HD movies on cards with low memory:
If your graphic card does not have a lot of memory(>521MB?), you can experience glitches when watching 1080p or even 720p movies. To avoid that start simple window manager like TWM or MWM.
Additionally increasing the MPlayer's cache size in ~/.mplayer/config can help, when your hard drive is spinning down when watching HD movies.
A good article on the subject can be found here
X with a TV (DFP) as the only display
The X server falls back to CRT-0 if no monitor is automatically detected. This can be a problem when using a DVI connected TV as the main display, and X is started while the TV is turned off or otherwise disconnected.
To force nvidia to use DFP, store a copy of the EDID somewhere in the filesystem so that X can parse the file instead of reading EDID from the TV/DFP.
To acquire the EDID, start nvidia-settings. It will show some information in tree format, ignore the rest of the settings for now and select the GPU (the corresponding entry should be titled "GPU-0" or similar), click the "DFP" section (again, "DFP-0" or similar), click on the "Acquire Edid" Button and store it somewhere, for example,
Edit xorg.conf by adding to the "Device" section:
Option "ConnectedMonitor" "DFP" Option "CustomEDID" "DFP-0:/etc/X11/dfp0.edid"
The "ConnectedMonitor" option forces the driver to recognize the DFP as if it were connected. The "CustomEDID" provides EDID data for the device, meaning that it will start up just as if the TV/DFP was connected during X the process.
This way, one can automatically start a display manager at boot time and still have a working and properly configured X screen by the time the TV gets powered on.
Displaying GPU temperature in the shell
Method 1 - nvidia-settings
To display the GPU temp in the shell, use nvidia-settings as follows:
$ nvidia-settings -q gpucoretemp
This will output something similar to the following:
Attribute 'GPUCoreTemp' (hostname:0.0): 41. 'GPUCoreTemp' is an integer attribute. 'GPUCoreTemp' is a read-only attribute. 'GPUCoreTemp' can use the following target types: X Screen, GPU.
The GPU temps of this board is 41 C.
In order to get just the temperature for use in utils such as rrdtool or conky, among others:
$ nvidia-settings -q gpucoretemp -t 41
Method 2 - nvidia-smi
Use nvidia-smi which can read temps directly from the GPU without the need to use X at all. This is important for a small group of users who do not have X running on their boxes, perhaps because the box is headless running server apps. To display the GPU temp in the shell, use nvidia-smi as follows:
$ nvidia-smi -a
This should output something similar to the following:
$ nvidia-smi -a ==============NVSMI LOG============== Timestamp : Mon Dec 13 20:11:28 2010 Driver Version : 260.19.29 GPU 0: Product Name : GeForce 8400 GS PCI Device/Vendor ID : 6e410de PCI Location ID : 0:1:0 Board Serial : 2648101198649 Display : Connected Temperature : 40 C Utilization GPU : 1% Memory : 8%
In order to get just the temperature for use in utils such as rrdtool or conky, among others:
$ nvidia-smi -a | grep Temp | cut -c17-18 40
Method 3 - nvclock
Use nvclock which is available from the [extra] repo. Note that nvclock cannot access thermal sensors on newer nvidia cards such as the G210/220.
There can be significant differences between the temperatures reported by nvclock and nvidia-settings/nv-control. According to this post by the author (thunderbird) of nvclock, the nvclock values should be more accurate.
Set Fan Speed at Login
You can adjust the fan speed on your graphics card with
nvidia-settings's console interface. First ensure that your Xorg configuration sets the Coolbits option to 4 or 5 in your
Device section to enable fan control.
Option "Coolbits" "4"
Place the following line in your
~/.xinitrc file to adjust the fan when you launch Xorg. Replace <n> with the fan speed percentage you want to set.
nvidia-settings -a "[gpu:0]/GPUFanControlState=1" -a "[fan:0]/GPUCurrentFanSpeed=<n>"
You can also configure a second GPU by incrementing the GPU and fan number.
nvidia-settings -a "[gpu:0]/GPUFanControlState=1" \ -a "[gpu:1]/GPUFanControlState=1" \ -a "[fan:0]/GPUCurrentFanSpeed=<n>" \ -a [fan:1]/GPUCurrentFanSpeed=<n>" &
If you use a login manager such as GDM or KDM, you can create a desktop entry file to process this setting. Create
~/.config/autostart/nvidia-fan-speed.desktop and place this text inside it. Again, change <n> to the speed percentage you want.
[Desktop Entry] Type=Application Exec=nvidia-settings -a "[gpu:0]/GPUFanControlState=1" -a "[fan:0]/GPUCurrentFanSpeed=<n>" X-GNOME-Autostart-enabled=true Name=nvidia-fan-speed
Gaming using Twinview
In case you want to play fullscreen games when using Twinview, you will notice that games recognize the two screens as being one big screen. While this is technically correct (the virtual X screen really is the size of your screens combined), you probably do not want to play on both screens at the same time.
To correct this behavior for SDL, try:
For OpenGL, add the appropiate Metamodes to your xorg.conf in section
Device and restart X:
Option "Metamodes" "1680x1050,1680x1050; 1280x1024,1280x1024; 1680x1050,NULL; 1280x1024,NULL;"
Another method that may either work alone or in conjunction with those mentioned above is starting games in a separate X server.
Old Xorg Settings
If upgrading from an old installation, please remove old
/usr/X11R6 paths as it can cause trouble during installation.
Corrupted screen: "Six screens" issue
For some users using Geforce GT 100M's, the screen turns out corrupted after X starts; divided into 6 sections with a resolution limited to 640x480.
To solve this problem, enable the Validation Mode
NoTotalSizeCheck in section
Section "Device" ... Option "ModeValidation" "NoTotalSizeCheck" ... EndSection
'/dev/nvidia0' Input/Output error
This error can occur for several different reasons, and the most common solution given for this error is to check for group/file permissions, which in almost every case is not the issue. The Nvidia documentation does not talk in detail on what you should do to correct this problem but there are a few things that have worked for some people. The problem can be a IRQ conflict with another device or bad routing by either the kernel or your BIOS.
First thing to try is to remove other video devices such as video capture cards and see if the problem goes away. If there are too many video processors on the same system it can lead into the kernel being unable to start them because of memory allocation problems with the video controller. In particular on systems with low video memory this can occur even if there's only one video processor. In such case you should find out the amount of your system's video memory (e.g. with lspci -v) and pass allocation parameters to the kernel, e.g.:
vmalloc=64M or vmalloc=256M
Another thing to try is to change your BIOS IRQ routing from Operating system controlled to BIOS controlled or the other way around. The first one can be passed as a kernel parameter:
The noacpi kernel parameter has also been suggested as a solution but since it disables ACPI completely it should be used with caution. Some hardware are easily damaged by overheating.
Trying to start an opengl application might result in errors such as:
Error: Could not open /dev/nvidiactl because the permissions are too restrictive. Please see the
FREQUENTLY ASKED QUESTIONSsection of
/usr/share/doc/NVIDIA_GLX-1.0/READMEfor steps to correct.
Solve by adding the appropiate user to the "video" group and relogin:
# gpasswd -a username video
32 bit applications do not start
Under 64 bit systems, installing
lib32-nvidia-utils that corresponds to the same version installed for the 64 bit driver fixes the issue.
Errors after updating the kernel
If a custom build of nvidia's module is used instead of the package from [extra], a recompile is required every time the kernel is updated. Rebooting is generally recommended after updating kernel and graphic drivers.
Crashing in general
- Try disabling
- If Xorg outputs an error about "conflicting memory type" or "failed to allocate primary buffer: out of memory", add
nopatat the end of the
- If the NVIDIA compiler complains about different versions of GCC between the current one and the one used for compiling the kernel, add in
- If Xorg is crashing with a "Signal 11" while using nvidia-96xx drivers, try disabling PAT. Pass the argument
More information about trouble-shooting the driver can be found in the NVIDIA forums.
Bad performance after installing a new driver version
If FPS have dropped in comparison with older drivers, first check if direct rendering is turned on:
$ glxinfo | grep direct
If the command prints:
direct rendering: No
then that could be an indication for the sudden FPS drop.
A possible solution could be to regress to the previously installed driver version and rebooting afterwards.
CPU spikes with 400 series cards
If you are experiencing intermittent CPU spikes with a 400 series card, it may be caused by PowerMizer constantly changing the GPU's clock frequency. Switching PowerMizer's setting from Adaptive to Performance, add the following to the Device section of your Xorg configuration:
Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x3322; PowerMizerDefaultAC=0x1"
Laptops: X hangs on login/out, worked around with Ctrl+Alt+Backspace
If while using the legacy nvidia drivers Xorg hangs on login and logout (particularly with an odd screen split into two black and white/gray pieces), but logging in is still possible via Ctrl-Alt-Backspace (or whatever the new "kill X" keybind is), try adding this in
options nvidia NVreg_Mobile=1
One user had luck with this instead, but it makes performance drop significantly for others:
options nvidia NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=33 NVreg_DeviceFileMode=0660 NVreg_SoftEDIDs=0 NVreg_Mobile=1
NVreg_Mobile needs to be changed according to the laptop:
- 1 for Dell laptops.
- 2 for non-Compal Toshiba laptops.
- 3 for other laptops.
- 4 for Compal Toshiba laptops.
- 5 for Gateway laptops.
See NVIDIA Driver's Readme:Appendix K for more information.
Refresh rate not detected properly by XRandR dependant utilities
The XRandR X extension is not presently aware of multiple display devices on a single X screen; it only sees the
MetaMode bounding box, which may contain one or more actual modes. This means that if multiple MetaModes have the same bounding box, XRandR will not be able to distinguish between them.
In order to support
DynamicTwinView, the NVIDIA driver must make each MetaMode appear to be unique to XRandR. Presently, the Nvidia driver accomplishes this by using the refresh rate as a unique identifier.
nvidia-settings -q RefreshRate to query the actual refresh rate on each display device.
The XRandR extension is currently being redesigned by the X.Org community, so the refresh rate workaround may be removed at some point in the future.
This workaround can also be disabled by setting the "DynamicTwinView" X configuration option to "false", which will disable NV-CONTROL support for manipulating MetaModes, but will cause the XRandR and XF86VidMode visible refresh rate to be accurate.