iGPU–dGPU Driver Handshake Issues After Driver Separation (Arc B580 + i5 13th Gen) – OBS Encoding No

[the_felon]

please check this video to get the whole idea  

I’m currently facing a persistent issue with the coordination (“handshake”) between Intel iGPU and dGPU drivers after the recent separation of driver packages. I’d like to explain the situation clearly and request guidance or a fix.

System Configuration

• CPU: Intel Core i5 13th Gen (with integrated GPU)

• GPU: Intel Arc B580

• RAM: 32 GB

• OS: Windows 11

Background

Previously (e.g., driver version 6790), Intel provided a unified driver package for both iGPU and dGPU. During that time:

• Both GPUs worked seamlessly together

• Intel Graphics Software functioned correctly

• I was able to use the iGPU for encoding (OBS recording) while gaming on the dGPU without any issues

Current Issues After Driver Separation

Since Intel split iGPU and dGPU drivers into separate installations, I’ve been facing multiple problems:

1. Installation Instability

• Installing iGPU first, then dGPU → system freezes, black screens, or unresponsive behavior

• Installing dGPU first → Intel Graphics Software becomes unstable:

  • “Not Responding” errors

  • Fan control doesn’t work

  • Telemetry features fail

2. Only Temporary Workaround

The only way I can install both drivers somewhat successfully is:

1. Install iGPU driver

2. Without restarting, install dGPU driver

3. Then restart

This avoids crashes, but:

• Intel Graphics Software still doesn’t function properly

• Clean installation of dGPU driver is not possible

3. Major Functional Regression (Critical Issue)

The most important problem:

I can no longer use the iGPU for OBS encoding while gaming on the dGPU.

Before:

• iGPU handled recording/encoding

• dGPU handled gaming

• System ran smoothly with high-resolution recording

Now:

• OBS cannot properly utilize the iGPU

• There appears to be no coordination between iGPU and dGPU

• This defeats a major advantage of having an integrated GPU

Core Concern

There seems to be a lack of proper synchronization between iGPU and dGPU drivers after they were split.

This affects:

• Driver stability

• Intel Graphics Software functionality

• Multi-GPU workflows (especially encoding + gaming)

Request to Intel Team

I strongly request the Intel team to:

1. Restore proper coordination/handshake between iGPU and dGPU drivers

2. Ensure Intel Driver & Support Assistant installs both drivers seamlessly

3. Fix Intel Graphics Software so it works reliably with both GPUs active

4. Re-enable stable iGPU-based encoding alongside dGPU workloads (OBS use case)

Why This Matters

This setup is essential for:

• Content creators

• Streamers

• High-performance multitasking

Losing iGPU encoding capability is a significant regression from previous driver versions.

If there are any recommended configurations, BIOS settings, or specific driver versions that resolve this, I would really appreciate guidance.

Thank you

[the_felon]

someone help me ! intel ! 

[KentRusselP_Intel]

Hi the_felon,

Thank you for reaching out to the Intel Community Forum. I appreciate your message and want to assure you that I’m here to help address your concern. To better understand the issue and provide accurate support, could you please share the following details:

• What was the last driver version that worked correctly?
• Are you currently installing drivers from Intel’s website, Windows Update, or the Intel® Driver & Support Assistant (IDSA)?
• In the BIOS, how is your iGPU configured (e.g., Auto, Enabled, Disabled)?
• Is your primary display connected to the motherboard (iGPU) or the dedicated graphics card (dGPU)?
• When you mention that Intel Graphics Software becomes unstable, does it crash immediately upon launch or only during specific actions?
• Are you using Display Driver Uninstaller (DDU) to completely remove previous drivers before reinstalling?
• When installing the dGPU driver, are you using the full installer package or just the driver‑only component?
• Do you see any specific error messages or codes in the Windows Event Viewer related to the graphics drivers?
• When the system freezes during driver installation, does it require a hard reset, or does it eventually recover on its own?

Your responses will help determine whether the issue is related to a driver conflict, an installation sequence, or a hardware or BIOS configuration concern.

System Information Request (SSU Logs)

To further assist us in reviewing your system configuration and providing precise support, we kindly request that you share the Intel® System Support Utility (SSU) logs from your device. These logs contain essential hardware and software details that are critical for troubleshooting.

Steps to generate the SSU report:

1. Download and run the Intel® System Support Utility (SSU).
2. The tool will create a text file containing your system information.
3. Please refer to this guide for detailed instructions: Help Guide for the Intel® System Support Utility
4. Once completed, attach the generated file to your reply.

Important Advisory – Legacy Support Notice

For 11th Generation through 14th Generation Intel® Processor Graphics, please note the following:

As of September 19, 2025, Intel will move 11th-14th Gen Intel Processor Graphics and related Intel Atom®, Pentium®, and Celeron® processor graphics to a legacy software support model. Intel will provide software support for affected products only for critical fixes and security vulnerabilities. Software updates for these products will move to a quarterly release cadence with additional critical releases as needed.

Only critical fixes and security vulnerabilities will be addressed in quarterly driver releases going forward.

With this in mind, please let us know if you would like to continue with support under these conditions.

If you have any additional questions or need further assistance, please don’t hesitate to reach out.

Best regards,

Kent Russel P.

Intel Customer Support Technician

[the_felon]

just give me time i will reply all this with the ssu file ! i have to take an exam tomorrow. i will do that what you are asking

[the_felon]

please check this video to get the whole idea  

I’m currently facing a persistent issue with the coordination (“handshake”) between Intel iGPU and dGPU drivers after the recent separation of driver packages. I’d like to explain the situation clearly and request guidance or a fix.

System Configuration

• CPU: Intel Core i5 13th Gen (with integrated GPU)

• GPU: Intel Arc B580

• RAM: 32 GB

• OS: Windows 11

Background

Previously (e.g., driver version 6790), Intel provided a unified driver package for both iGPU and dGPU. During that time:

• Both GPUs worked seamlessly together

• Intel Graphics Software functioned correctly

• I was able to use the iGPU for encoding (OBS recording) while gaming on the dGPU without any issues

Current Issues After Driver Separation

Since Intel split iGPU and dGPU drivers into separate installations, I’ve been facing multiple problems:

1. Installation Instability

• Installing iGPU first, then dGPU → system freezes, black screens, or unresponsive behavior

• Installing dGPU first → Intel Graphics Software becomes unstable:

  • “Not Responding” errors

  • Fan control doesn’t work

  • Telemetry features fail

2. Only Temporary Workaround

The only way I can install both drivers somewhat successfully is:

1. Install iGPU driver

2. Without restarting, install dGPU driver

3. Then restart

This avoids crashes, but:

• Intel Graphics Software still doesn’t function properly

• Clean installation of dGPU driver is not possible

3. Major Functional Regression (Critical Issue)

The most important problem:

I can no longer use the iGPU for OBS encoding while gaming on the dGPU.

Before:

• iGPU handled recording/encoding

• dGPU handled gaming

• System ran smoothly with high-resolution recording

Now:

• OBS cannot properly utilize the iGPU

• There appears to be no coordination between iGPU and dGPU

• This defeats a major advantage of having an integrated GPU

Core Concern

There seems to be a lack of proper synchronization between iGPU and dGPU drivers after they were split.

This affects:

• Driver stability

• Intel Graphics Software functionality

• Multi-GPU workflows (especially encoding + gaming)

Request to Intel Team

I strongly request the Intel team to:

1. Restore proper coordination/handshake between iGPU and dGPU drivers

2. Ensure Intel Driver & Support Assistant installs both drivers seamlessly

3. Fix Intel Graphics Software so it works reliably with both GPUs active

4. Re-enable stable iGPU-based encoding alongside dGPU workloads (OBS use case)

Why This Matters

This setup is essential for:

• Content creators

• Streamers

• High-performance multitasking

Losing iGPU encoding capability is a significant regression from previous driver versions.

If there are any recommended configurations, BIOS settings, or specific driver versions that resolve this, I would really appreciate guidance.

Thank you

[RedCapsicum9]

Alright, here’s the real deal, you gotta do a proper clean reset this time, no shortcuts. I know you’ve already tried a bunch of steps, but this needs a full clean slate, not partial installs. Use DDU in Safe Mode and completely wipe both the Intel iGPU and Arc drivers. After that, disconnect your internet so Windows doesn’t mess things up by auto-installing drivers. Then install the iGPU driver first, restart, and only after that install the Arc (dGPU) driver and restart again. Don’t skip the restarts, they actually matter for getting everything initialized properly. At the same time, double-check your BIOS and Windows settings because they play a big role here. Make sure iGPU (or iGPU Multi-Monitor) is enabled in BIOS and your primary display is set to PCIe (dGPU). In Windows Graphics Settings, set OBS to use the iGPU (Power Saving GPU). Inside OBS, make sure the encoder is set to Intel Quick Sync (QSV), not Arc or x264. If QSV isn’t showing up, that usually means the iGPU isn’t being properly recognized by the system.

As for Intel Graphics Software acting up like fan control not working, telemetry failing, or the app freezing that’s usually a sign of a bad or mismatched driver install, not just a simple bug. And yeah, you’re right this does feel like a step back compared to the old unified drivers. The split driver setup still has some rough edges, especially for setups like yours where you’re gaming and encoding at the same time.

[the_felon]

Using DDU is a basic step, and I’ve already done all of that. I’ve also tried multiple restarts as suggested, but the issue still remains.
In fact, if I restart after installing the iGPU driver, the system becomes unusable—the PC fails to boot properly and only shows a black screen.
Regarding OBS running on the iGPU, I’ve thoroughly researched and tested different setups. The only version that works for me is 6790. After that version, none of the newer releases are able to run OBS on my system. But 6790 is a much older version for gaming

[TheExpertGuy]

Intel split the iGPU and dGPU drivers into separate packages, which broke the seamless “handshake” between them. Previously, the unified driver handled multi-GPU workflows (iGPU for OBS encoding, dGPU for gaming) smoothly.

,,,below outlines the persistent issues with iGPU and dGPU coordination, installation problems, and OBS recording functionality

Driver Order & Clean Installation

• Boot into Safe Mode and use DDU (Display Driver Uninstaller) to completely remove all Intel graphics drivers—this avoids leftover conflicts.
• Install the iGPU driver first (make sure it’s the latest version compatible with your CPU).
• Without restarting, immediately install the dGPU driver.
• Once both drivers are installed, restart your PC.

This sequence is currently the only reliable way to prevent crashes and black screens.

Intel Graphics Software Stability

• If the Intel Graphics Software shows “Not Responding”:
  • Right-click the app and choose Run as Administrator.
  • In the Intel Graphics Command Center, reset to default settings.
• Avoid using third-party GPU monitoring or RGB/fan utilities that might conflict with fan control.

OBS iGPU Encoding with dGPU Gaming

• In OBS:
  • Go to Settings → Output → Encoder and select Intel Quick Sync (iGPU).
• In BIOS:
  • Make sure iGPU Multi-Monitor / Integrated Graphics is enabled.
  • Set Primary Display to Auto or your dGPU if you want gaming performance prioritized.
• In Windows Device Manager:
  • Verify both GPUs are active and no warning symbols are present.

Well,,,,. Intel hasn’t fully restored the old seamless multi-GPU workflow this is a known limitation of the split drivers.

[the_felon]

I’ve already tried all the recommended steps for installing and running both drivers, but the issue still persists. The main problem seems to be with OBS—it fails to launch regardless of the driver combination I use.
From my understanding, the issue may be related to a lack of proper handshake or compatibility between the iGPU and dGPU when using the latest drivers.
I would like to report this issue to the Intel driver development team so they can investigate it further. Could you guide me on the proper way to submit this report to ensure it gets their attention?

[KentRusselP_Intel]

Hi the_felon,

I just wanted to follow up and check if you’ve had a chance to review the information I shared previously. Your feedback is important, and I’d appreciate it if you could share your thoughts at your earliest convenience.

Also, I want to reiterate an Important Advisory – Legacy Support Notice. For 11th Generation through 14th Generation Intel® Processor Graphics, please note the following:

As of September 19, 2025, Intel will move 11th-14th Gen Intel Processor Graphics and related Intel Atom®, Pentium®, and Celeron® processor graphics to a legacy software support model. Intel will provide software support for affected products only for critical fixes and security vulnerabilities. Software updates for these products will move to a quarterly release cadence with additional critical releases as needed.

Only critical fixes and security vulnerabilities will be addressed in quarterly driver releases going forward.

With this in mind, please let us know if you would like to continue with support under these conditions.

If you have any additional questions or need further assistance, please don’t hesitate to reach out.

Hi RedCapsicum9 and TheExpertGuy,

Thank you for joining the discussion and for your insights! appreciate it. If you need assistance or if you have concerns, please feel free to create a separate Intel Community post for accurate and effective assistance.

Best regards,

Kent Russel P.

Intel Customer Support Technician

[KentRusselP_Intel]

Hi the_felon,

As I haven’t received a response, I will proceed to close this inquiry. Should you require further assistance or have additional questions, please feel free to submit a new request. Kindly note that this thread will no longer be monitored once closed.

Best regards,

Kent Russel P.

Intel Customer Support Technician

[the_felon]

just clarify ! why i am not able to use igpu in the latest updates to run obs and recor or stream to offload task of my dgpu while gaming ? why ? so that means i paid for that igpu has no use anymore ? and why there is no particular guidline of intalling both igpu and dgpu at the same time ?