sujet Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics] dans Intel® Arc™ Discrete Graphics

Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

AstroNommy — Tue, 24 Mar 2026 10:40:01 GMT

Hello Intel,

IntelGraphicsSoftware_26.4.2155.3 came with packed with latest driver gfx_win_101.8626 is not working correctly, the Performance Tab values showing erratic behavior and values changing rapidly, and also CPU Utilization has been removed from the list which was present in previous WHQL 101.8509.

Right now, I am using the latest driver with older IGS _25.52.2110.4 and everything seems to be working fine.

Just reporting this and waiting for this problem to be fixed in future update.

Thanks

Kind Regards.

NIUH

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

Mike_Intel — Thu, 02 Apr 2026 00:20:01 GMT

Hello AstroNommy,

Thank you for posting in Intel community Forum.

For me to better understand and diagnose the issue further, let me ask you to provide detailed responses to the following questions. This information will help me isolate the problem and determine the most appropriate course of action moving forward.

What is the model of your Graphics controller?
Please tell me how did you update the driver?
What are the troubleshooting steps that you tried so far?
For me to review the hardware and the driver installed, please help generate the SSU logs of your system. Kindly refer to the link below for the steps:

How to get the Intel® System Support Utility Logs on Windows*

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

Re: Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

AstroNommy — Thu, 02 Apr 2026 00:55:54 GMT

Hello Michael,

Good day!

1) Intel Arc B580 Challenger.

2) Downloaded the driver from Official Intel Page; DDU'ed previous driver in safe mode and clean installed latest 8626.

3) I usually handle the troubleshooting process on my own because I am an experienced user, but for this specific issue I tried the driver on another drive with WIN10 installed but the issue still persists.

4) I have attached SSU for better understanding.

P.s: I personally don't have any major issue with this brilliant series of GPU's created by Intel, either with Games or Ai generated stuff.

Cut to the chase: for such brilliance I also bought another LE (as a backup).

Best regards,

NIUH.

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

Mike_Intel — Thu, 02 Apr 2026 02:21:48 GMT

Hello AstroNommy,

Thank you for the quick reply.

Let me gather additional details about the issue.

Kindly provide screenshots and videos of the issue.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

Re: Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

AstroNommy — Fri, 03 Apr 2026 00:20:04 GMT

Hello Michael,

Good day!

I'm attaching 2 videos, one with older IGS and the other with newer version.

Driver version is 8626 on both videos.

You can clearly see the difference in newer IGS. It has missing CPU Utilization TAB and GPU, WATT, UTIL tab values are changing erratically.

Such issues were not present in previous IGS version 25.52.2110.4.

Best regards,

NIUH.

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

Mike_Intel — Fri, 03 Apr 2026 00:34:44 GMT

Hello AstroNommy,

Thank you for the information provided.

I will do further research on this matter and post the response on this thread once it is available.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

Mike_Intel — Fri, 03 Apr 2026 23:42:56 GMT

Hello AstroNommy,

I hope this message finds you well.

Kindly try the following steps and update this thread if this will help fix the issue:

1) Uninstall the Intel Graphics Software (IGS).

Go to Add or remove programs.
Look for Intel Graphics Software and uninstall it.

2) Proceed with clean installation of the latest graphics driver version 32.0.101.8626 using Display Driver Uninstaller (DDU) in safe mode.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

Re: Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

AstroNommy — Sat, 04 Apr 2026 03:33:09 GMT

1) Uninstall the Intel Graphics Software (IGS).
Go to Add or remove programs.
Look for Intel Graphics Software and uninstall it.

Hello Michael,

Good day!

I did what you've asked of me and the problem still remains.

I think that it has something to do only with IGS bundled with latest driver package.

I hope it will get fixed with the next update.

Best regards,

NIUH.

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

JedG_Intel — Mon, 06 Apr 2026 01:49:42 GMT

Hi AstroNommy,

Thank you for trying the recommendations we shared, and I’m sorry to hear that the issue is still persisting. We will continue looking into this and will provide you with an update as soon as possible.

Best regards

Jed G.

Intel Customer Support Technician

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

Mike_Intel — Wed, 22 Apr 2026 20:47:26 GMT

Hello AstroNommy,

I hope this message finds you well.

We are still in the process of reviewing and investigating this issue.

However, let me also ask you. For this thread, you reported 2 issues and they are the folloiwng:

IntelGraphicsSoftware_26.4.2155.3 came with packed with latest driver gfx_win_101.8626 is not working correctly, the Performance Tab values showing erratic behavior and values changing rapidly,
and also CPU Utilization has been removed from the list which was present in previous WHQL 101.8509.

Due to system limitation, we can only attend with one issue per thread. Please tell me which issue would you like us to focus.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

Re: Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

AstroNommy — Sat, 25 Apr 2026 20:14:12 GMT

Hello Michael,

Good day!

Sorry for replying late, I just got the Email notification for your reply.

Well, I think the glitchy behavior issue needs a fix.

Best regards,

NIUH.

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

BuenoS_Intel — Mon, 27 Apr 2026 02:42:09 GMT

Hi AstroNommy,

Thank you for your response! No worries about the delay.

Before we proceed with thorough troubleshooting, I’d like to ask if you could try installing the latest driver (version 32.0.101.8735) and let me know if the issue persists. Sometimes, updating the driver can resolve certain glitchy behaviors, and this step will help us determine if that’s the case here.

Once you’ve had a chance to test it, please let me know the results, and we can continue from there.

Looking forward to hearing from you. Thank you for your cooperation!

Best regards,

Bueno S.

Intel Customer Support Technician

Re: Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

AstroNommy — Mon, 27 Apr 2026 22:50:56 GMT

Hello Bueno S.

Good day!

I have clean installed latest version 8735 but it has same problem.

However, I noticed that fast pacing values have slowed down a bit (30%) but still it's not perfect as IGS came with version 8509 and

CPU Utilization is still missing.

Best regards,

NIUH.

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

Mike_Intel — Tue, 28 Apr 2026 20:58:49 GMT

Hello AstroNommy,

Thank you for the update.

Let me check, did you use DDU method to install version 8735?

As I have mentioned in my previous post, we can only support 1 issue per thread.

Kindly create a new thread for the missing CPU Utilization.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

Re: Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

AstroNommy — Wed, 29 Apr 2026 06:19:41 GMT

Hello Michael,

Good day!

did you use DDU method to install version 8735?

Yes. I always use DDU in Safe Mode before installing new driver.

Kindly proceed with irregular behavior of Metric values.

p.s: for CPU Utilization I will create a separate thread.

Thanks a lot.

Best regards,

NIUH.

Re:Bug Report: IGS 26.4.2155.3 [Rapidly changing values + Missing Metrics]

Mike_Intel — Wed, 29 Apr 2026 21:01:31 GMT

Hello AstroNommy,

Thank you for the update

Let me continue to further check this issue and post the response on this thread once it is available.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician