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Intel 10th gen Ice lake cpu extremely slow viewport performance(blender 2.8-2.81)
Open, Waiting for Developer to ReproducePublic

Description

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: Intel(R) Iris(R) Plus Graphics Intel 4.5.0 - Build 25.20.100.7011

Blender Version
Broken: version: 2.81 (sub 15), branch: master, commit date: 2019-10-17 15:40, hash: rB382e7ce9ecfb
Worked: (optional)

Short description of error
Viewport perfomance is 5-10fps with just a cube in scene. Runs smooth in 2.79 but extremely sluggish in 2.8-2.81

Exact steps for others to reproduce the error
Start default Blender 2.8 or 2.81 startup file. Navigate or move cube.
blender --debug-gpu-force-workarounds does not help.

/Nikolaj

Details

Type
Bug

Event Timeline

Germano Cavalcante (mano-wii) lowered the priority of this task from Needs Triage by Developer to Needs Information from User.EditedOct 21 2019, 7:41 PM

Have you tested with the latest graphics drivers on the intel website?
https://downloadcenter.intel.com/product/80939/Graphics-Drivers

I'm using the latest xxx.7323 driver from october. Stock driver from Lenovo gave same results.

Blender 2.79 runs smooth as does Houdini. But 2.8-81 is extremely slow. Moving a cube trails after the mouse.
Let me know if there is anything I can do.

Hello here's a screencapture of Blender 2.81 performance.
Unfortunately I'm not able to use Blender 2.8 on my new laptop.

Laptop model is Lenvo Yoga C940 14" 16gb ram, I7-1065-G7 cpu, fhd model, windows 10 64bit.

Philipp Oeser (lichtwerk) raised the priority of this task from Needs Information from User to Waiting for Developer to Reproduce.Fri, Nov 22, 12:44 PM

Same thing on my brand new Surface 7 Pro. Newest Intel Drivers 26.20.100.7463.
Intel® Core™ i7-1065G7 CPU
Blender 2.82Alpha has the same problem. 2.79 is smooth.
Moving the whole window is laggy, too.