Latest Windows 11 24/H2 Release and Graphics Issues

We experienced the same issues. Davinci Resolve 18.6 editing H.265 Quick Sync dissapeared from the preferences menu. By comparison out editing performance slowed to a crawl on custom build from Puget Systems with i9-14900k / NVIDIA RTX4090. intel and NVIDIA both were sending out multiple updates every week. So you have Win. 11 / 24H2 followed by CPU & GPU updates trying to fix a problem, yet claim nobody knows about it.

I uninstalled drivers and restored Win. 11 to previous date but still lagging compared to before.

Going to uninstall all updates back to first of Dec. 2024and turn off auto update till this is resolved.

Thanks Microsoft. . .

Ever since Win11 24H2 my RTX 3060 12gb just thinks the monitor is disconnected when the screen comes back on and my Windows all get unmaximized.

I have Intel i7-12700k with iGPU enabled and two RTX 3060 cards for dev reasons (so 3 GPUs). Will see what happens when I disable it but very annoying. Wish I never updated.

I noticed the WDDM updated which I'm guessing broke a bunch of stuff.

Looks like Windows 11 24H2 has really messed up iGPU Quick Sync. Adobe still 'Investigating' with Intel on this issue - but I think there are two issues at play for Adobe customers (can't say for Resolve editors.

I have stuck with Win 11 23H2 and as mentioned above iGPU still OK for H265 but NOT H264. This is on Premiere Pro 25.1.

Version 25.0 is OK

Members of Adobe community reprt similar issues to your yourself that Win 11 24H2 adds another dimension to the mess - H265 not working either on Quick Sync

As you correctly report - we have total silence from Microsoft on this.

Intel appear to be a little bit more proactive but have not nailed any apparent issues on their drivers - so assume Intel are clean on this one.

I'm using xxx .6449 driver on my iGPU with Win 11 23H2 and it is OK for H265 and H264 on Premiere Pro 25.0

25.1 messes up H264.

I've raised a request on Microsoft (via their Feedback mechanism ) that when they introduce a new major release like Win 11 24H2 that they DO NOT remove the ability for a user to download thye previous version eg Win 11 23H2 from their website (Media Creator)

They remove it straight away which is a ridiculous thing to do until the new version is proved to be stable in the field for at least 6 months.

Having similar issues with ASUS ROG SCAR 18 (2023) with i9-13980HX + 4090 laptop.

Since I updated to Win11 24H2 in December I noticed crashes related to Intel iGPU drivers and NVidia drivers I NEVER experienced before with 23H2. Typical random login (silent) crash, logged by Reliability Monitor and Event Viewer, related to iGPU as emerged by WinDbg on the dump file:

I also sent an NVidia survey form reporting strange issues with Advanced Optimus MUX switch iGPU --> dGPU, sometimes failing and being stuck with freezed iGPU screen (instead of switching to the dGPU virtual display as it should), related to random dwm.exe crashes when this happens. Again, never happened with 23H2, before I updated to 24H2 in December.

In this case, one solution I found ATM seems to be to completely uninstall NVidia App.

NVidia recently informed me they've been able to reproduce this issue.... So we can confirm this 24H2 has serious problems with iGPU and dGPU video drivers.

Honestly 24H2 should have NEVER been released to the public since wasn't beta-tested enough and was still full of major bugs, causing conflicts with programs/games and drivers that were working perfectly fine up to 23H2.

Agree. . .

Windows should allow a roll back to 23H2 for those having problems. But they locked us out after upgrade to 24H2.