topic Re:Intel ARC a750 Pixel Flickering - Acer Bifrost in Graphics

Intel ARC a750 Pixel Flickering - Acer Bifrost

synch — Fri, 01 Nov 2024 19:31:54 GMT

Random pixels flickering white

My System: Windows 11 Pro, Asus ROG Maximus Z690 Hero motherboard, 13900K CPU, latest BIOS and drivers

Issue reproduced in 4k, 1440, 1080

Biggest difference can be controlled with changes to Windows Night Light or f.lux app.

Changing Night Light to 47 removes some artifacts

Setting 36 removes more artifacts, but they seem to appear worse in other areas

Turning off completely gets rid of most issues.

Testing with f.lux has similar effect

Not random, seems to occur in same spots depending on settings. Issue will move with window when dragging around screen.

Re:Intel ARC a750 Pixel Flickering - Acer Bifrost

JedG_Intel — Fri, 08 Nov 2024 05:57:04 GMT

Hi synch,

For me to have a better approach with helping with your concern, I'd like to gather the information below.

1. Was the issue there when you first used the system?

2. Did you make any recent changes?

3. When do the pixels appear, does it appear when you are performing specific tasks or running applications?

4. What display cable are you using?

5. Have you tried using a different monitor?

Additionally, to have a better understanding of your system configuration and components please generate System Support Utility (SSU) report. Please follow instructions here and send the report - How to get the Intel® System Support Utility Logs on Windows*

I'll be waiting for your response. Thank you!

Best regards,

Jed G.

Intel Customer Support Technician

Re: Re:Intel ARC a750 Pixel Flickering - Acer Bifrost

synch — Fri, 08 Nov 2024 22:16:07 GMT

I disabled F.lux completely, reconnected the HDMI cable, installed the latest Windows preview update, and restarted.

The issue still occurs, but is much harder to reproduce. Turning off the Windows Night Light removes any artifacts. I will focus on testing the HDMI cable.

1. Was the issue there when you first used the system? Yes, this a new build.

2. Did you make any recent changes? This setup is the "starting point", so everything is new.

3. When do the pixels appear, does it appear when you are performing specific tasks or running applications? Not task related, but when artifacts appear they are "sticky" to the area .... observed areas: background near area where multiple windows intersect, videos, images (not all images or videos)

4. What display cable are you using? branded as Twisted Veins HDMI, I do not see specs. available, I will try a Cable Matters (https://www.amazon.com/gp/product/B005BZG8GO)

5. Have you tried using a different monitor? Initially, but I don't have results and will need to retest once the issue reproduces.

Currently I am having trouble reproducing the issue. I will also test if a reboot clears the issue after testing the cable / monitor combinations.

Monitor is a Vizio TV E43u-D2

Thanks for the feedback!

Re:Intel ARC a750 Pixel Flickering - Acer Bifrost

JedG_Intel — Fri, 15 Nov 2024 06:18:05 GMT

Hi synch,

Thanks for sharing the additional information.

Based on the SSU logs, I can see that you have an outdated driver version 101. 6083. I'd like to inform you that we have released a newer driver version 101.6297. Please try the steps below to see if it will also help.

1. Download the latest drivers here - Intel® Arc™ & Iris® Xe Graphics

2. Use DDU to uninstall the graphics driver - How to Use the Display Driver Uninstaller

3. Perform a clean installation - Clean Installation of Intel® Graphics Drivers

I'd also love to get your feedback once you are done trying different cable and monitor combinations to help with the investigation.

Best regards,

Jed G.

Intel Customer Support Technician

Re: Re:Intel ARC a750 Pixel Flickering - Acer Bifrost

synch — Fri, 15 Nov 2024 07:55:22 GMT

Since I haven't had the issue reoccur, I am thinking it was a loose cable.

I had the ARC updates set to WHQL, so I had not seen the 32.0.101.6297 update.

I ran a clean install, but did not go through the uninstall process.

Running multiple video streams and having the ARC control software running, I have not seen the pixel flickering.

If the issue reoccurs, I will retry the process including the uninstall step.

Thank you for the support!

Re:Intel ARC a750 Pixel Flickering - Acer Bifrost

JedG_Intel — Tue, 19 Nov 2024 04:53:19 GMT

Hi synch,

I appreciate the update and I'm glad to hear that the issue did not reoccur. Just in case that you encounter the same issue, please try to follow my recommendations.

Also, since the issue is fixed for now, I will close this inquiry. If you need further assistance, please submit a new question as this thread will no longer be monitored.

Best regards,

Jed G.

Intel Customer Support Technician