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24

Short answer: It doesn't "switch" and you can't disable the Intel IGP. Long answer: From a hardware point of view the Intel IGP is always handling image output to the laptop's LCD screen. The NVIDIA GPU copies rendered graphics into the Intel IGP's frame buffer (which resides in system memory) when it is active. The Optimus software makes certain programs ...


10

I figured out a workaround for this, if you create a hard-link to chrome.exe in the same directory, you can set a profile for that executable independently. C:\Program Files (x86)\Google\Chrome\Application>mklink /H gpu-chrome.exe chrome.exe Hardlink created for gpu-chrome.exe <<===>> chrome.exe You'll need to run cmd.exe in administrator ...


7

According to NVIDIA, chrome and firefox both have been disabled from using the Nvidia GPU by design. This is a death blow to WebGL in web browsers on optimus laptops and I have no idea why they decided to do this. "Radium3D said: I have an ASUS N53SV laptop which features GPU switching and I have an issue with 326.80 drivers not allowing Firefox or ...


6

Process Explorer can show GPU usage. It is not shown by default, right click the columns and select "Select Columns" then use the dialog that comes up to add them. While it won't show which GPU, the process using the most GPU resources is likely on the discrete one. A common task that uses the GPU is DWM (Desktop Window Manager).


4

I am not familiar with this particular laptop, but there is very often an option in the BIOS to specify either Optimus graphics, or to force either the Intel or Nvidia card to be dominant. That would completely disable the one chipset.


4

For Windows users: Recommended method The simplest method is to head over to LG's UK site for the LGP990 and grab the "WINDOWS USB Driver". Make sure your phone isn't plugged in before installing the drivers; you can plug it in once the installation wizard finishes. Alternative method If that doesn't work for you, LG also provides a software updater from ...


4

Ok, so it turns out that I don't need to use the developer drivers to compile OpenCV after all! I had somehow messed up my software sources such that I wasn't updating from ppa:ubuntu-x-swat/x-updates any more. When I fixed that I was able to update my NVIDIA drivers to 304.43 from 295.49. I think that might have been the critical factor for getting OpenCV ...


3

A virtual machine does not get direct access to your hardware. The hypervisor emulates hardware, what hardware that is emulated depends on which hypervisor you are using. The Vmware Compatibility Guide includes details about exactly what Guest Operating systems are supported. Windows 8 is not on the list. For supported guest operating systems VMware ...


3

I don't understand why DWM is different from any other 3D application, and hence why it has to be special. It's a bit painful, but you might want to take a look at where all this information is stored (it might be in the C:\ProgramData\NVIDIA Corporation\Drs folder) and then try modifying it with a hex editor to see if you can enable the combo box. If ...


3

The Asus K43SJ does not use the integrated Intel HD graphics (whether it's on the CPU or not), so you're not going to be able to use Optimus. I came to this conclusion by the fact that the Intel Graphics are mentioned nowhere on the support page for that model, and the fact that they ONLY offer the nVidia driver (where as the K53SC does provide both the ...


3

If you activate the dedicated graphics the graphics driver starts to redirect all incomming instructions to the NVidia chip. The computed image data is then written into the memory of the Intel GMA which does nothing else than to take care of the output. It does not render anything at all. I'm not sure if this satisfies your question. Ask if you wan't to ...


3

With my Latitude E6520 with Intel HD Graphics 3000, NVIDIA NVS 4200M, and Windows 7 Enterprise, I can use the NVIDIA Control Panel to force a specific processor per-application or globally. Try either: Right clicking on the Desktop and selecting NVIDIA Control Panel Navigating to the Control Panel and searching for NVIDIA Control Panel If you don't have ...


2

found it myself, it's Nvidia Inspector, it can override nvidia optimus and force applications to nvidia GPU on all processes. note: when I find answers to my own questions I often get downvotes, but whatever. somebody may look for it and it may be useful for someone in the future.


2

Okay, I found the fix, someone else posted it on askubuntu: http://askubuntu.com/questions/125040/after-installation-of-bumblebee-i386-opengl-apps-stopped-working If you haven't yet installed bumblebee, simply install libgl1-mesa-glx:i386 before you install bumblebee and you should be fine. If you have already installed bumblebee, install ...


2

You might have a look at this patch to the Nvidia drivers : Hybrid PhysX mod v1.03 / v1.04ff, which seems to be related to your problem. Better read the comments as well. Towards the end, one comment confirms v1.04ff as working for version 270.61 that you are using. If you decide to try it out, first take some good backups.


2

There is no Windows 8 drivers for nVidia optimus cards, your computer will probably not boot to Windows 8 after you install the drivers or if you upgrade from Windows 7 with the drivers installed. My m14x does not boot into Windows 8 with the Windows 7 drivers installed, the screen just flickers on and off. No safe mode, no low resolution mode, nothing. ...


1

I tried both an upgrade and a fresh install of windows 8 on my laptop and it worked perfectly both times. I have an m14x like John A so I don't know where his problems came from but my computer boots without complications and supports laptop + 2 extra monitors just fine.


1

You might read this question (and its answers), which I posed in May 2011 and have not yet received a satisfactory answer for. The short version is: Optimus allows mixed-mode rendering by allowing the powerful Nvidia GPU to write (e.g. output video) directly into the frame buffer of the Intel IGP. Based on my experience with optimus, it is possible that the ...


1

Your virtual machine doesn't have a virtual nVidia card to use. The physical machine has a physical nVidia card, and presumably it's using it. Virtual machines operate on virtual hardware or physical hardware that is virtualized. The video card is not virtualized.


1

For Linux users: the LG Optimus 2X works out of the box, but debugging does not. Follow the instructions on this blog to get that working correctly. In case that link goes down, it boils down to: Open a text editor with administrative permissions and edit /etc/udev/rules.d/90-android.rules Enter the following line: BUS=="usb", SYSFS{idVendor}=="1004", ...


1

Optimus CAN be disabled in the BIOS, only problem is you need to UNLOCK the default BIOS. I have an Alienware and unlocked the A08 BIOS, and there you can disable the IGP. I only run on NVIDIA and it is much smoother now.


1

I wonder if your computer may use Optimus and use two video cards, one on-board and the other that of Nvidia. If that's not the case, please indicate your computer model and that of the Nvidia card. If that is the case, one solution would be to go to the Nvidia control panel. In Manage 3D settings, click the Global tab, and set the prefered graphics ...


1

Screensavers are pretty much just renamed executables - with the filenames foo.scr which are launched by some process. I assume you installed the screensavers yourself and would know where they are- else they seem to be in c:\windows\system32 in windows XP C:\Windows\winsxs\ in a folder with some name like ...


1

Sadly there are no out-of-the-box working Nvidia Optimus drivers available at all. I am facing the same problem with my laptop. It is said that nvidia puts the blame on X11 and the impossibility to develop an optimus driver for it. (X is pretty messy as far as I know - old and a lot of patchwork - there are a lot of people that demand a total revamp). One ...


1

Nvidia Optimus will send graphics to either the onboard GPU, or the Nvidia GPU, not to both. The purpose of Optimus is to allow 2D graphics to be processed on the onboard low power GPU and not run them on the power hungry 3D GPU. This allows the laptop battery life to be extended with minimal performance loss. Individual applications can be assigned to ...


1

Follow the link listed below and chose the appropriate options. The drivers appear to have been updated this year and they should work assuming the file download hasn't been corrupted. Otherwise you may have conflicting or corrupted drivers installed on your computer which you can attempt to fix by trying to uninstall the current drivers and reinstall them ...


1

The problem was the X server was trying to load the NVIDIA GLX module, and not the one for the Intel GPU. All you have to do is add the following section to your xorg.conf: Section "Module" Load "/usr/lib64/xorg/modules/extensions/libglx.so" EndSection After a reboot Gnome won't start in fallback mode, and you can use both GPUs.


1

Download and use the latest drivers from the notebook manufacturer website, both Intel first and the Nvidia. Once installed, download the latest driver from Nvidia. Start the program and after it does the compatibility check, cancel the installer. Click start, right click "My Computer" and select properties. In the popup window on the top left side, ...


1

When rendering to your laptop's integrated screen, both video cards will (or at least can) be active at the same time. Optimus begins to run into problems when multiple outputs are involved, though. My personal experience has been that only the integrated screen's framebuffer is shared by the two GPUs, and external connectors such as HDMI or DisplayPort are ...


1

Yes, the switch is supposed to be instantaneous. You shouldn't even know it's happening.



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