All displays periodically blink for a few seconds on my Yoga Pro 9 16IMH9

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All displays periodically blink for a few seconds on my Yoga Pro 9 16IMH9

MarkMc-8359 20

I have 2 external monitors attached to my Yoga Pro 9 16IMH9. All displays, including the one on the Yoga periodically blinks for a few seconds. One display is currently attached by USB-C and one by HDMI. At one point I had both attached via USB-C, but it didn't seem to make any difference in the blink behavior. When in Teams meetings, remote participants can see my screen blink as well. The frequency of the issue varies, but I have not been able to correlate it to anything. My system is up to date on the OS and Lenovo Vantage says my system is up to date. I am running Windows 11 Pro version 25H2 build 26200.7840. Any thoughts about what might be causing this?

Although they may be unrelated, other symtoms my laptop is experiencing is that the clock time and date in the lower right corner of the screens freezes for long periods of time. Another issue is that when I click on program icons in the tray, windows displays the wrong program.

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Answer 1

Hello Mark Mc,

This issue is not related to Windows for Business or Windows 365 Enterprise. What you are experiencing is a hardware/driver-level problem on a Lenovo Yoga Pro 9 running Windows 11 Pro. The blinking across all displays, including the internal panel, indicates that the graphics subsystem is resetting momentarily. Because remote participants in Teams can see the blink, it confirms that the GPU driver is losing sync and reinitializing the frame buffer, not just the external monitor link.

The fact that you are also seeing the system clock freeze and tray icons mapping incorrectly points to a broader graphics stack or shell process instability. On Windows 11 build 26200.7840, Lenovo systems with hybrid graphics (Intel iGPU + NVIDIA dGPU) have had reported issues with display driver timeouts (TDR events). These manifest as short black screens or blinking when the GPU driver resets. You can confirm this by checking Event Viewer > Windows Logs > System for events with source Display and ID 4101 (“Display driver nvlddmkm stopped responding and has successfully recovered”) or similar Intel driver resets.

The recommended steps are: ensure you are running the latest Intel and NVIDIA drivers directly from Lenovo’s support site, not just Windows Update. Lenovo Vantage sometimes lags behind, so cross-check with Lenovo’s official driver matrix for your Yoga Pro 9 16IMH9. If the issue persists, disable hybrid graphics switching in BIOS (forcing either iGPU or dGPU) to see if stability improves. Another mitigation is to increase the TDR delay value in the registry at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers by adding a DWORD named TdrDelay with a value of 10. This gives the GPU more time to recover before Windows resets it.

The frozen clock and tray misbehavior are secondary symptoms of the shell (explorer.exe) not refreshing properly after the GPU reset. If driver updates and TDR adjustments do not resolve the issue, you should capture a Windows Performance Recorder trace during the blink and submit it to Lenovo or Microsoft support, as this may be a firmware-level bug in the Yoga Pro 9 series.

I hope you've found something useful here. If it helps you get more insight into the issue, it's appreciated to accept the answer. Should you have more questions, feel free to leave a message. Have a nice day!

Domic Vo.

MarkMc-8359 20 Reputation points

2026-02-18T00:19:20.82+00:00

Thank you. That all makes sense. I'll test it all out this evening!

Answer 2

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The issue you are experiencing with your Yoga Pro 9 16IMH9, where all displays periodically blink, could be related to several factors. Here are some potential causes and solutions:

Display Drivers: Ensure that your display drivers are up to date. Sometimes, outdated or incompatible drivers can cause display issues. You can check for updates through the Device Manager or the manufacturer's website.
USB-C and HDMI Connections: Since you mentioned using both USB-C and HDMI connections, try using only one type of connection at a time to see if the issue persists. Sometimes, conflicts between different types of connections can lead to display problems.
Hardware Acceleration: If you are using applications that utilize hardware acceleration (like Teams), try disabling hardware acceleration in those applications to see if it resolves the blinking issue.
Windows Settings: Check your display settings in Windows. Go to Settings > System > Display and ensure that the resolution and refresh rates are set correctly for each monitor.
System Performance: The freezing clock and incorrect program displays could indicate performance issues. Check if your system is under heavy load or if there are background processes consuming resources. You can use Task Manager to monitor CPU and memory usage.
Windows Updates: Although you mentioned your system is up to date, ensure that all optional updates are also installed, as they may contain important fixes.

If the problem continues after trying these steps, it may be beneficial to contact Lenovo support for further assistance, as they can provide more specific troubleshooting for your hardware.

MarkMc-8359 20 Reputation points

2026-02-17T17:12:46.22+00:00
Thank you for your input. Yes, I've considered many of those things and here are a few thoughts.

If it was a a display driver issue, I wouldn't think it would affect all 3 displays, but it does. Is my assumption correct ?

I previously had both external monitors on USB-C. The occurred then as well.

I'll look to check my applications, but I'm not using any applications which likely have hw acceleration enabled. I don't do anything that is graphics intensive which would even have this as an option.

As with #1, even if one or more of the display settings was wrong, would the behavior affect all 3 displays at the same time (which it does).

The clock freeze is not a temporary freeze. it's a permanant freeze until reboot. I don't think a performance based freeze would be permanent.

I'll go back and check for more windows updates, but I think I installed everything I could find.
Domic Vo 17,745 Reputation points Independent Advisor

2026-02-17T17:21:12.38+00:00

Hello,

Your assumption that a pure display driver issue would typically affect only one output is reasonable, but in practice the GPU driver reset affects the entire graphics stack. When the graphics subsystem encounters a timeout or fault, Windows triggers a TDR (Timeout Detection and Recovery) event. That reset reinitializes the GPU pipeline globally, which is why all three displays—including the internal panel—blink simultaneously. The fact that Teams participants see the blink confirms it is not just a physical connector issue but a full frame buffer reset.

Running both monitors on USB‑C versus HDMI does not change the underlying GPU reset behavior, so the symptom persists regardless of connection type. Hardware acceleration in applications is not required to trigger this; even desktop composition and shell rendering rely on GPU acceleration in Windows 11. That explains why you see the tray misbehavior and frozen clock—those are shell processes tied to the graphics stack, and once the GPU reset occurs, explorer.exe can lose synchronization with the rendering pipeline.

The permanent freeze of the clock is particularly telling. That suggests the shell process is not refreshing after the GPU reset, which is more severe than a temporary performance hiccup. It points to either a driver bug or a firmware/BIOS interaction where the GPU does not fully recover from sleep states.

Since you are already on the latest OS build and Lenovo Vantage shows up to date, I would recommend cross‑checking Lenovo’s support site directly for the Yoga Pro 9 16IMH9 to ensure you have the most recent Intel and NVIDIA drivers, not just the ones pushed through Windows Update. If the issue persists, disabling hybrid graphics in BIOS to force either the iGPU or dGPU can help isolate whether the instability is tied to the switching logic.

If none of these steps resolve the issue, the next step is to capture a Windows Performance Recorder trace during the blink and submit it to Lenovo or Microsoft support. This will confirm whether the resets are TDR events or a deeper firmware issue. Given the combination of blinking, frozen clock, and shell misbehavior, I lean toward a driver or firmware bug rather than a simple misconfiguration.

Domic Vo.
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All displays periodically blink for a few seconds on my Yoga Pro 9 16IMH9

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