No Cycles render device found / No Cycles render engine #81498

New Issue

Meino Cramer · 2020-10-07T05:59:52+02:00

Meino Cramer commented

2020-10-07 05:59:52 +02:00

System Information
Operating system: GENTOO LInux / NVIDIA-Linux-x86_64-455.23.04 ( graphics driver installed via nvidia-installer )
Graphics card: NVIDIA Corporation TU106 [GeForce RTX 2060 SUPER] (rev a1)

Blender Version
Broken: Blender 2.91 alpha , versions affected (at least):
blender-2.91.0-099ce95ef36d-linux64
blender-2.91.0-2c317457cbf2-linux64
blender-2.91.0-3178dc25f6ed-linux64
blender-2.91.0-659f81f1cbc3-linux64
blender-2.91.0-6f3a9031f7b9-linux64
blender-2.91.0-743eca0f316d-linux64
blender-2.91.0-a4f8b2ad7653-linux64
blender-2.91.0-e5aa9decb23f-linux64
blender-2.91.0-edd1164575fe-linux64
Worked: Blender 2.90.1 (last stable)

Short description of error
No cycles render device found
Exact steps for others to reproduce the error
No blend file needed.
Start blender
Go User-Preferences->System
See top row: Cycles Render Devices is empty
Or check Render Properties tab for selection of available render engines: Only Eevee is displayed.

**System Information** Operating system: GENTOO LInux / NVIDIA-Linux-x86_64-455.23.04 ( graphics driver installed via nvidia-installer ) Graphics card: NVIDIA Corporation TU106 [GeForce RTX 2060 SUPER] (rev a1) **Blender Version** Broken: Blender 2.91 alpha , versions affected (at least): blender-2.91.0-099ce95ef36d-linux64 blender-2.91.0-2c317457cbf2-linux64 blender-2.91.0-3178dc25f6ed-linux64 blender-2.91.0-659f81f1cbc3-linux64 blender-2.91.0-6f3a9031f7b9-linux64 blender-2.91.0-743eca0f316d-linux64 blender-2.91.0-a4f8b2ad7653-linux64 blender-2.91.0-e5aa9decb23f-linux64 blender-2.91.0-edd1164575fe-linux64 Worked: Blender 2.90.1 (last stable) **Short description of error** No cycles render device found **Exact steps for others to reproduce the error** No blend file needed. Start blender Go User-Preferences->System See top row: Cycles Render Devices is empty Or check Render Properties tab for selection of available render engines: Only Eevee is displayed.

Meino Cramer commented

2020-10-07 05:59:52 +02:00

Added subscriber: @mcq

TheRedWaxPolice commented

2020-10-07 07:13:31 +02:00

Added subscriber: @TheRedWaxPolice

TheRedWaxPolice commented

2020-10-07 07:13:31 +02:00

The Cycles addon is enabled in the preferences?

Meino Cramer commented

2020-10-07 08:47:59 +02:00

No...it was not. I enabled it again and Cycles is there again.
BUT: I didn't disabled it. Is it now disabled by default with 2.91 alpha?

No...it was not. I enabled it again and Cycles is there again. BUT: I didn't disabled it. Is it now disabled by default with 2.91 alpha?

TheRedWaxPolice commented

2020-10-07 09:00:03 +02:00

There was a bug on previous builds....
#81405 (Cycles is not enabled by default on recent builds)
0bf12cb025

There was a bug on previous builds.... #81405 (Cycles is not enabled by default on recent builds) 0bf12cb025

Richard Antalik commented

2020-10-09 14:19:21 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-10-09 14:19:21 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Richard Antalik commented

2020-10-09 14:19:21 +02:00

Sometimes I get error when cycles addon have some problem with GPU and doesn't even load, so it can't be even enabled. This happens in 0.001% cases on Blender startup, I guess issue reported is not what I described here?

We need steps to reproduce this issue (not how to check if cycles is enabled) to fix this bug.

Sometimes I get error when cycles addon have some problem with GPU and doesn't even load, so it can't be even enabled. This happens in 0.001% cases on Blender startup, I guess issue reported is not what I described here? We need steps to reproduce this issue (not how to check if cycles is enabled) to fix this bug.

Richard Antalik commented

2020-10-13 17:50:09 +02:00

I just caught this issue in my case, here is console log output:

Traceback (most recent call last):
  File "C:\Blender-git\b1\bin\Debug\2.91\scripts\modules\addon_utils.py", line 382, in enable
    mod.register()
  File "C:\Blender-git\b1\bin\Debug\2.91\scripts\addons\cycles\__init__.py", line 132, in register
    engine.init()
  File "C:\Blender-git\b1\bin\Debug\2.91\scripts\addons\cycles\engine.py", line 131, in init
    _workaround_buggy_drivers()
  File "C:\Blender-git\b1\bin\Debug\2.91\scripts\addons\cycles\engine.py", line 46, in _workaround_buggy_drivers
    if _is_using_buggy_driver():
  File "C:\Blender-git\b1\bin\Debug\2.91\scripts\addons\cycles\engine.py", line 28, in _is_using_buggy_driver
    if bgl.glGetString(bgl.GL_VENDOR) == "ATI Technologies Inc.":
AttributeError: could not get opengl string
Vendor: ATI Technologies Inc.
Renderer: Radeon RX550/550 Series
Version: 4.5.14736 Core Profile Context 20.8.3 27.20.12027.1001
Warning! Dummy Version: 4.6.14736 Compatibility Profile Context 20.8.3 27.20.12027.1001
Context Version: 4.5

I just caught this issue in my case, here is console log output: ``` Traceback (most recent call last): File "C:\Blender-git\b1\bin\Debug\2.91\scripts\modules\addon_utils.py", line 382, in enable mod.register() File "C:\Blender-git\b1\bin\Debug\2.91\scripts\addons\cycles\__init__.py", line 132, in register engine.init() File "C:\Blender-git\b1\bin\Debug\2.91\scripts\addons\cycles\engine.py", line 131, in init _workaround_buggy_drivers() File "C:\Blender-git\b1\bin\Debug\2.91\scripts\addons\cycles\engine.py", line 46, in _workaround_buggy_drivers if _is_using_buggy_driver(): File "C:\Blender-git\b1\bin\Debug\2.91\scripts\addons\cycles\engine.py", line 28, in _is_using_buggy_driver if bgl.glGetString(bgl.GL_VENDOR) == "ATI Technologies Inc.": AttributeError: could not get opengl string Vendor: ATI Technologies Inc. Renderer: Radeon RX550/550 Series Version: 4.5.14736 Core Profile Context 20.8.3 27.20.12027.1001 Warning! Dummy Version: 4.6.14736 Compatibility Profile Context 20.8.3 27.20.12027.1001 Context Version: 4.5 ```

Robert Guetzkow commented

2020-11-06 13:59:04 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-11-06 13:59:04 +01:00

@mcq It sounds like the issue was resolved for you by 0bf12cb025, is that correct?

@iss Doesn't seem to be same issue, this should probably be a separate ticket.

@mcq It sounds like the issue was resolved for you by 0bf12cb025, is that correct? @iss Doesn't seem to be same issue, this should probably be a separate ticket.

Richard Antalik commented

2020-11-14 05:24:50 +01:00

Changed status from 'Needs User Info' to: 'Archived'

Richard Antalik closed this issue

2020-11-14 05:24:50 +01:00

Richard Antalik self-assigned this 2020-11-14 05:24:50 +01:00

Richard Antalik commented

2020-11-14 05:24:50 +01:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

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No Cycles render device found / No Cycles render engine #81498