Windows Manager on desktop shows excessive GPU consumption.
Windows Manager on desktop shows excessive GPU consumption.
Hello fellow linusians, I've encountered an unusual pattern with the dwm.exe process and wanted some guidance. A bit of context: I was attempting to optimize my system for smooth 4K@60 performance in Witcher 3 on ultra/high settings. My setup includes a Ryzen 3800X, 32GB RAM, and an RTX 2080 Super. While the game runs reasonably well—about 50 frames at ultra and 55-60 at high settings—I notice something odd. When no game is active, the GPU usage in Task Manager and MSI Afterburner spikes to 10-15%, split between Desktop Windows Manager and Client Server Runtime Process. I've researched these processes and believe they're likely causing the problem due to modern Windows behavior. My main concern is how dwm.exe handles GPU load during gameplay. Testing shows all the game's processing went through dwm.exe, while witcher.exe uses only a tiny fraction of GPU resources (around 0.1%). MSI Afterburner reports near-full utilization. Is this typical? If not, what steps can I take to resolve it? Thanks in advance for any insights. P.S. I tested on my monitor at 1080p, not a TV.
Everything is fine, but the task manager isn't displaying all GPU load categories.
Yes, you can track real GPU usage per process using tools like `GPU-Detect`, `nvprof`, or system monitoring utilities that expose GPU metrics.
It’s not everything being perfect. There’s been unusual behavior lately, possibly dating back to around Windows 1903 with DWM and Nvidia graphics. I’ve found a couple of relevant discussions online: one on Microsoft’s forum about high GPU usage in Windows 10 and another on Steam community threads. When searching for similar issues, the results are varied but generally point to DWM getting stuck in unexpected tasks, leading to excessive GPU activity when there should be none. Personally, I’m experiencing this too—before any DirectX game, my desktop freezes because of DWM. Even after closing games like Monster Hunter World or Rimworld, the issue persists. Exiting a game leaves the screen flickering and unresponsive until I log out and back in. Some users tried reverting to older versions or drivers, but that only delays the problem. I’m considering a full Windows reinstall now, though others have suggested rolling back to previous versions, which isn’t ideal.
There are no changes yet. The issue persists with dwm.exe consuming a large portion of your GPU when running rainmeter, but dropping to minimal usage when idle.
Has anyone resolved the problem? I've been experiencing the same issue for a few days now.
You're experiencing the same problem. Adjusting the priority of dwm.exe in Task Manager can provide temporary relief, and rebooting often resolves it briefly. Initially, your PC won't start properly because the GPU is overloaded. Restarting either fixes the issue temporarily or leads to crashes later. This cycle usually repeats daily.
I'm experiencing the same issue again today. What's going on?