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OpenGL driver lost connection

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I use Windows 7 64 bit Version 6.1.7601 Service Pack 1. I have a DELL laptop (Inspiron 17R SE 7720) with two GPUs Inter(R) HD Graphics 4000 and  NVIDIA GeForce GT 650M. Processor Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz 2.39 GHz. 8GB RAM. For the past few months after I turn on the laptop after around 15 minutes (always approximately the same time after starting the system) I keep getting this BSOD with DRIVER_POWER_STATE_FAILURE caused by ntoskrnl.exe and ntkrnlmp.exe (almost all the time the reason is ntoskrnl.exe). Sometimes it crashes because of both ntoskrnl.exe and ntkrnlmp.exe at the same time, but when crash is caused by ntkrnlmp.exe it never creates minidump, it creates only usual dump.


On Sat 20.02.2021 21:17:58 your computer crashed or a problem was reported
crash dump file: C:\Windows\Minidump\022021-33353-01.dmp

This was probably caused by the following module: ntoskrnl.exe (nt+0x93EA0)
Bugcheck code: 0x9F (0x3, 0xFFFFFA800A000A10, 0xFFFFF80000B9E428, 0xFFFFFA800CF62AF0)
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the driver is in an inconsistent or invalid power state. A device object has been blocking an IRP for too long a time.
This is likely to be caused by a hardware problem.

The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.




Event log states critical error with Kernel-Powel code 41 task (63). I also noticed that right after these crashes my discrete GPU disappears from Device Manager. After that without this NVIDIA GPU I can use the computer for the entire day but it lags a lot. Then I turn it off at night, the next morning the situation with BSOD repeats. There were days when I ran it and everything worked very fast with no BSOD. During these times I tried not to turn my laptop off for a weeks and it worked perfect. But after a couple of weeks it usually didn't go out of sleeping mode properly (laptop wakes up but the screen remains dark) so I had to reboot it and get these BSODs again.


I deleted all the drivers for both Intel and NVIDIA GPUs using DDU and then installed them again from DELL website. Also I updated all the drivers for chipset and etc from there. I checked memory and it is ok. I checked SSD and HDD they are also fine. Used /scannow and it didnt show any errors. Checked the viruses with cureit and didn't find any. The problem remained. Then I took out the battery and noticed that problem was suddenly solved (for one day) and I stopped getting any BSOD. 

After one day BSOD DRIVER_POWER_STATE_FAILURE with NVIDIA GPU disappearing also came back again. I checked unsigned drivers with verifier.exe. Only igdkmd64.sys (Intel Graphics Kernel Mode Driver) and intcdaud.sys (Intel(R) Display Audio Driver) are unsigned. So I tried to disable Driver Signature Verification and it didn't help. I also changed stuff like PCI Express in Power settings to maximum performance, also didn't help. 

Somehow I managed to solve the problem with BSOD, but now I noticed that if I use apps with DirectX (for example games) everything works fine and nothing crashes, but when I start using something based on OpenGL (for example 3D modeling programs) the program crashes with the message "The NVIDIA OpenGL driver lost connection with the display driver and is unable to continue. The application must close. Error code: 2".  After that crashes NVIDIA GPU was showing 99% load constantly. When I tried to reboot the laptop, it couldn't turn off so I had to turn it off with holding power button. OpenGL Extensions Viewer shows that my OpenGL driver is Intel Graphics Drivers, not NVIDIA. It is the latest one from DELL for my laptop. 

I would really appreciate if you help me with that problem. Thank you.


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2 Replies

Hello nnnkz1,

Thank you for posting on the Intel* Community.


Unfortunately, the Intel® HD Graphics 4000 was discontinued, Intel Customer Service no longer supports inquiries for it, but perhaps fellow community members have the knowledge to jump in and help. You may also find the Discontinued Products website ( helpful to address your request.


You can verify this product's discontinuance status at the Intel® Product Specifications website > Product Status > "Discontinued".

Please keep in mind that this thread will no longer be monitored by Intel. Thank you for your understanding.



Best regards,

Maria R.

Intel Customer Support Technician

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Honored Contributor II

"OpenGL Extensions Viewer shows that my OpenGL driver is Intel Graphics Drivers, not NVIDIA"

Like most GPU tools it cannot handle NVIDIA Optimus technology properly.

Right-click program icon and select "run with discrete GPU".


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