Unable to force integrated graphics after Windows 10 reinstall.

[JimmyDeemo]

I have an approximately 3 year old Optimus laptop and I'm having trouble getting the laptop to limit to integrated graphics when pressing the VGA button. I've spoken to technical support who helped me with other compatibility issues but not this one. Here is a brief summary;

I have reinstalled Windows 10 clean. I have used the 8.1 drivers from the PCS support section. When I press the VGA button it goes green and gives me the usual popup about restarting applications such that they take effect of the change. However the little LED indicator on the chassis is stuck on orange indicating dedicated graphics. I would expect this to switch to the green one and stay there. Battery usage suggest that it is indeed using dedicated graphics.

PCS support said that it was the Hotkey driver that had control of this so I found the latest versions which is the 64bit 8.1 driver with the number 8.0150. However this doesn't appear to work. The current version number for the Nvidia drivers is 361.43 if that makes a difference.

Any thoughts would be much appreciated; have posted the key parts of the spec below. The only thing I haven't done is upgrade the BIOS to the one in the PCS support section.

---------------

Chassis & Display
Optimus Series: 15.6" Matte Full HD LED Widescreen (1920x1080)
Processor (CPU)
Intel® Core™i7 Quad Core Mobile Processor i7-3630QM (2.40GHz) 6MB
Memory (RAM)
4GB SAMSUNG 1600MHz SODIMM DDR3 MEMORY (1 x 4GB) <-----Now 8GB
Graphics Card
NVIDIA® GeForce® GTX 660M - 2.0GB DDR5 Video RAM - DirectX® 11

 

[ubuysa]

These are known issues with NVIDIA optimus and Windows 10.

Even though everything works ok on my Optimus IV laptop with Windows 10 the VGA button no longer works - pressing it does nothing - in addition my dGPU light is permanently on as well. I believe that both these minor problems are related to the NVIDIA/Windows 10 issues. Hopefully they will get fixed, either by Microsoft or NVIDIA (when they finish blaming each other I guess) but it's very much a Windows 10 problem.

If this is a big deal for you then you have little choice but to go back to Windows 8.1.

BTW. It may have been a mistake to use the Windows 8.1 drivers with Windows 10 (they didn't work properly on my Optimus IV). The only Windows 8.1 driver I have had to use is the chipset driver (because there isn't a Windows 10 one available). You might want to reinstall Windows 10 and allow Windows Update to select all the drivers, you'll probably have to manually install the chipset driver afterwards. That won't fix your non-working VGA button nor the permanently lit dGPU light though.......

 

[JimmyDeemo]

Thanks for the response.

That is disappointing; is there currently a thread or reference to keep track of this issue for future reference?

It is a pretty big thing for the way I use the laptop...so I might have to downgrade. I'm actually coming from Windows 7 but was under the impression that 8.1 drivers would be fine so thanks for the tips on that.