I’ve recently been having issues where the system becomes extremely laggy, taking 10-30 seconds to respond to clicks and update the screen. It also flips between older and newer screen states (e.g. a closed window appears again, then goes away again). This behavior persists even after I exit Blender and use other apps but it only starts when I’m using Blender. The only solution I have found is to reboot my computer.
It only happens when using Blender but It is not tied to complexity - I have had it happen almost immediately when launching Blender where only the default cube, light and camera exist in the scene.
I’m using Blender 4.5.5 with a 5090 and the latest drivers. CPU is i9 285k on an ASUS motherboard. I assume it’s a video card issue - somehow the card gets into a weird laggy state that requires a reboot.
Anybody have any suggestions on where to look to see what might be causing the issue?
Sounds like pain…
Two suggestions: if you use “game ready” driver for your 5090, test the studio driver (and vice versa).
If you use openGL for blenders GUI, try Vulcan (and vice versa).
And maybe test if the problem persists in newer Blender version (5.1).
You can validate if it is indeed a graphic driver issue by resetting the drivers ( Win + Ctrl + Shift + B) next time it happens. If it momentarily solves your problem, then you should do a fresh re-install of your graphic driver.
If you are using the nvdia app, you can do that by selecting “custom installation” then enable “clean installation”
Thanks for the replies - it seems it might have been related to my screen refresh rate. I have a 120 Hz monitor and run it at that rate for everything else but it seems the lagginess in Blender goes away when I run at 60 Hz. At least it has for the last few days - I’ll report back if it turns out that’s not the issue.
Created an account just to say thanks for this info, this ended up fixing my issue. It was bad, I could sometimes work for an hour, sometimes only 5 minutes before my entire pc basically became unusable.