Nvidia optimus issues

Hello,

I recently upgraded my MSI gt70 0NE to a 970M, everything seems to be working fine, games run awesome, I'm getting decent temps. But I'm having a major issue where Optimus won't load any 64 bit applications on the GPU, even if I force it to use the GPU or set it globally to launch anything on the GPU, 64 bit applications just don't want to use it.

I've uninstalled and reinstalled both the Intel and Nvidia drivers.

Searches online pointed me to updated some registry keys:
https://thatonecomputerguy.wordpres...hd-graphics-nvidia-optimus-solved/#comment-94

Still no dice.

Anyone know what I can do?

I'm on Windows 8.1 by the way.

Thank you!

 

Clean install Windows 8.1 or use Windows repair - http://www.tweaking.com/content/page/windows_repair_all_in_one.html

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

 

Just tried windows repair, took an hour or so. Used the driver uninstaller and then reinstalled the drivers. Still no dice.

Any suggestions other than reformatting? I'm hoping to avoid that.

Thanks!

 

Try Recovery, and perform a refresh.

 

What card did you get and what vbios is it running?

 

Had the same problem with certain professional applications. Using hidden Power Options solved that (disable dGPU sleep):



Also, which programs? Some require special treatment to make DX11 work (core having been build in the 9.0c era ...).

 

Righto, going to try that. I need to create an image and such since I don't have the discs.

Here's the card and it's information

Just unhid those options and set them to what you have, it's still not loading my apps on the GPU. In that thread you linked, someone posted that turning off 'Panel Self-refresh' made the power options work. But I don't seem to have the 'Panel Self-refresh' option anywhere (Intel HD 4000)

And I'm mainly using DCC apps like Autodesk Maya and Mudbox,etc.

One way I can get it to work right now is to disable the integrated via the device manager, launch the application. Then it uses the GPU and then enable the Integrated again. But it's really a hassle and it seems to mess up my USB monitor after disabling, which then requires a restart.

 

PSR is not the issue here. See ' AutoCAD uses the wrong graphics card':

This situation applies to most, if not all, software-switching laptops. Compare performance ' iGPU disabled' vs. ' dGPU disabled', see if there's indeed a difference. And does gaming work while using the USB monitor?

There may also be a more simple workaround; launch Chrome before starting Maya et al. Set it to ' Use hardware acceleration' and force dGPU for Chrome via nvidia control panel. That setting is respected, at least.

Spoiler: Buying suggestion for the next laptop ...

Non-Optimus, which means desktop cpu or sli system (or, heck, both). Optimus spells nothing but trouble, and merely for a few watts saved; dGPU can also also downclock/undervolt, so the difference isn't all that, plus it requires a more intricate design with redundant routing. Intel made their onboard gpu to please their system-builder customers; cheaper systems by sacrificing dedicated gpu. But it really has no place in high-end laptops.

 

Urgh. You're right, it seems to be Autodesk related apps, Chrome and Unreal engine (both 64 bit) use the GPU. It's only the Autodesk apps that don't want to it seems. I've tried setting the Nvidia settings for them, but they still use the integrated . The reason I'm sure it's using it is due to Maya actually telling you which display adapter it's using when it loads up. But it's not only that, I get horrible slowdowns. If I disable the integrated via the device manager and launch maya, it says it's using the 970, as well as there are massive speed improvements.

The sad thing is, everything worked fine on the original GPU that came with the laptop (680m). It burnt out, so I had to replace it.

This is really the first laptop I've gotten and while it's great. The issues with graphics cards (even finding a proper replacement was a hassle) is just so annoying. Optimus as well. I hope the newer generation laptops have fixes some of these issues.

I tried launching chrome first and then Maya, but it's still not using the GPU. :/

Any suggestions? I'm waiting on my Windows 10 upgrade, I'm hoping that will fix it, but until then I'd really like to find a solution.

 

Oh and regarding the USB monitor, yup, works fine while gaming

 

Well most other laptops if the GPU toasted you would have had to replace the entire thing of course

 

Recall AutoDesk publishes ' optional add-ons' once in a blue moon, some of these included support for additional gpus. Likely, it's an id-only type of 'update' (970M device id not recognised). If they haven't published an add-on; try checking its ini'is, .inf's or registry. Failing that as well ... can't change device id without soldering different resistors on the mxm. Besides, can't change it to an 860M anyway (different core), might make it into the world's first Quadro K6000M though ... but don't suppose that would be validated either .

 

Well. The issue has been resolved.
I bit the bullet and did a clean install. Everything worked fine after (Thanks PCtech91). And further managed to narrow it down to what was actually causing it.

So the GPU was being used for Maya, all good. Then I installed the displaylink drivers for the USB monitor and BLAM! same issue. Uninstalled the drivers, and everything is working. Wish I narrowed it down before reformatting. but. Meh. At least it's resolved. I'll need to find out why the Displaylink drivers are interfering with Optimus, it was working fine with my old 680.

Thanks for all your help guys!

That is very true.

I couldn't find anything relating to the GTX's
Which is why I went the reformat route.

 

Clean install always saves the day lol!