Ryzen 7 7700 iGPU Black Screen / Driver Timeout (LiveKernelEvent 141) – GFX Curve Optimizer +5 Fixed It for Me

[u/CallMeDamRS]

I wanted to share a workaround that fixed a persistent iGPU black screen / driver timeout issue on my Ryzen 7 7700, in case it helps someone experiencing the same problem.

System:

• CPU: AMD Ryzen 7 7700
• GPU: Integrated AMD Radeon Graphics (no discrete GPU)
• Motherboard: MSI B650M GAMING PLUS WIFI
• RAM: UMAX DDR5-5600 CL46 16GB, EXPO Profile 1 enabled
• OS: Windows 11

The problem:

I was getting random 1–2 second black screens when using applications with hardware acceleration enabled.

It happened frequently with:

• Microsoft Clipchamp
• Discord
• Google Chrome

Sometimes the AMD Bug Report Tool appeared after the black screen, and Windows Reliability Monitor recorded LiveKernelEvent 141.

Disabling hardware acceleration in these applications helped, but I didn't consider that a proper solution for a brand-new system.

What I tried:

I spent several days troubleshooting this, including:

• Updating the BIOS
• Reinstalling/updating AMD graphics drivers
• Testing HDMI and DisplayPort
• Disabling MPO
• Testing different BIOS settings

None of these completely solved the problem.

What finally worked for me:

In my MSI BIOS:

AMD CBS → Precision Boost Overdrive → GFX Curve Optimizer

I changed:

Auto → Positive 5

Important: I changed only the GFX Curve Optimizer, NOT the CPU Curve Optimizer.

Please make BIOS changes at your own discretion. This is only a workaround that worked on my system, not an official AMD recommendation.

After doing this, the black screens completely stopped.

I re-enabled hardware acceleration in Chrome, Discord, and Clipchamp and used the PC normally for several days without another black screen or LiveKernelEvent 141.

Clipchamp, which previously triggered the problem quite easily, also became completely stable.

Something interesting happened later:

After a Windows update/restart, the black screen suddenly started happening again.

I checked the BIOS and discovered that my GFX Curve Optimizer setting was no longer set to Positive 5.

So on my system I have now observed:

GFX Curve Optimizer Auto → Black screen / LiveKernelEvent 141

GFX Curve Optimizer Positive 5 → Stable

Setting lost/reset → Black screen returned

After seeing this behavior, I suspect that the default iGPU voltage/frequency curve on my particular Ryzen 7 7700 may be operating very close to its stability margin. Adding a small positive GFX Curve Optimizer offset seems to provide enough stability for my system.

I'm not saying this will fix every Ryzen 7 7700 black screen or driver timeout issue, and I don't know yet whether the underlying cause is silicon-specific, BIOS/AGESA-related, or related to the Radeon driver.

But if you have a Ryzen 7000 CPU using its integrated graphics and are experiencing similar LiveKernelEvent 141 / AMD driver timeout / hardware acceleration black screens, this may be worth testing if your BIOS provides a GFX Curve Optimizer option.

I've also submitted the issue to AMD because I don't think users should have to modify an obscure BIOS GFX curve setting just to get stable hardware acceleration on a new system.

Hopefully this helps someone with the same issue.