Freezing lag of HD4600 in Win10 with Nvidia Optimus laptop

[AScis1]

(System Used: clevo p157SM-A

CPU SKU: i7-4800MQ
GPU SKU: HD4600 OPTIMUS + nvidia GTX 970M
Processor Line: I7 mobile quad
System BIOS Version: latest
CMOS settings: default
Graphics Driver Version: 20.19.15.4300
GOP/VBIOS Version: 5.5.1032
Operating System:  Windows 10 64 bit
OS Version:
API: DX11
Occurs on non-Intel GPUs?: don't know

I have a Clevo P157SM-A with Optimus (HD4600 + 970M) Windows 10 64bit here, with nvidia 358.50 using mainly on AC power.

dGPU is activating itself when Windows Aero UI request some effects or animations: it happens ( STEPS TO REPRODUCE)
1.(sometimes) clicking on Start button when I have some animated squares
2.(always=way to replicate this problem) clicking on BATTERY icon (it pops up power settings with an animation)
3.(sometimes) clicking on volume icon (volume bar shows up with an animatio)
4. ALWAYS REPLICATES WHEN CLICKING "NEXT WALLPAPER" in desktop with right click if a Windows aero theme is selected.

Activating dGPU for just 1 second or so, in coincidence with UI effects, then dGPU turns off.
IT GENERATES TERRIBLE LAG (I cannot move cursor and system is freezed for  1 second)

When the lag generates, the dgpu led is lighting up for 1 second so it's like turning on dGPU for no reason (integrated graphics can handle these effects EASLY) then turn it off all in one second.
Nvidia gpu activity shows "no program" using it , altough it's active for 1 second.
Therefore I haven't managed to track a specific app that causes it.

RC6 RENDER STANDBY Enable or Disabled, doesn't make any difference
 

This problem has been reported by many users on notebookreview forum and on nvidia forum. Always same simpthoms, but IN WINDOWS 8.1 EVERYTHING IS WORKING perfectly with proper Win8.1 drivers.

It is a problem of INTEL Graphics because it asks the discrete GPU for help in really simple 2D rendering situations. Seems not NVIDIA fault.

[Michael_C_Intel2]

Hi Alberto,

You need to go to our support community: https://communities.intel.com/community/tech

You can report your issue and get support in the Graphics forum.  This forum is devoted to game developers working on Intel Graphics.

-Michael

[AScis1]

My fault 😞
That section you indicated me doesn't have a bug report thread thou.

Could you indicate me one or escalate this bug report to Windows 10 drivers developers?
Thank you

[Michael_C_Intel2]

The graphics forum I sent you too is correct. A sub forum for graphics driver issues is a unique to my game developer forum. Post in the forum and a member of Intel Customer Support will respond.

-Michael

[NNach]

Hi Alberto, did you solve the problem?

I just bought a new HP Wave 600 desktop computer (i5 6ºgen with Intel Graphics 5300+AMD R9 M470 for 3D )

Exactly what you described in your post occurs in my system. Sometimes when clicking in Start. Always when changing desktip background...

- All drivers and Bios are up to date.

- Win 10 x64 up to date.

- Intel graphic driver: 

• 15.45.10.4542 

Those short mouse freezes are very anoying.

Any help would be really apreciated.

Thanks

[JLiu87]

Does right-clicking a program shortcut show "Run with graphics processor" option in the context menu? I find that can cause this problem. You can disable it by opening NVIDIA Control Panel, opening Desktop menu and unchecking: Add "Run with graphics processor" to Context Menu.