Can't render with the GPU in cycle anymore

[War.io]

I don't know why, it was working fine in the 4.1, but now, even by saying that I want him to use the GPU, he is still using the cpu...

[War.io]

Welp

[basti3001]

well well well.

you have been visiting the preferences > System and selected CUDA / OptiX / HIP / oneAPI? And checked one of the two Boxes under the selectables?

(depending on your System settings which would be "better" in most cases)

(Blender 4.2 Update sucks sadly)

[War.io]

引用自 basti3001：

well well well.

you have been visiting the preferences > System and selected CUDA / OptiX / HIP / oneAPI? And checked one of the two Boxes under the selectables?

(depending on your System settings which would be "better" in most cases)

(Blender 4.2 Update sucks sadly)

Lmao of course, I ain't a newbie anymore on Blender.

BUt idk why, even by checking those with the GPU, blender just RESUFES using my rtx! Idk why!

[ZergSquad]

just turn off CPU rendering in options also.

PS had not this, but similar bug long time ago
Fixed by leaving only CPU render in system preferences, save setting and relaunch blender, then turn off CPU and click only GPU then save and relaunch again, got fixed

[basti3001]

Does it work maybe on older Versions lol?

[War.io]

引用自 basti3001：

Does it work maybe on older Versions lol?

Ah it's was working fine in the 4.1. Jesus, that update is strange

[basti3001]

Yes it is. It broke my Blender completly lol. If it helps, I had to delete everything from Blender, including in Data Roaming / Program Files etc. Now my Blender works again

[ILoveFlowers]

I'm having exactly the same problem. Every time I start a render, it hangs at 20%. And the program slows to a crawl when I use viewport shading.

[War.io]

引用自 ZergSquad：

just turn off CPU rendering in options also.

PS had not this, but similar bug long time ago
Fixed by leaving only CPU render in system preferences, save setting and relaunch blender, then turn off CPU and click only GPU then save and relaunch again, got fixed

I'll try

[ILoveFlowers]

In case anyone is still interested, I discovered that the problem was with the viewport denoiser. Once I unchecked 'Denoise' under viewport settings, the performance drastically improved, and it stopped maxing out my CPU.

[beholder]

Thank you guys, all of you are my saviours <3
And official blender™ advice was "Update your drivers, dummy", implying this ever helps.