AMD published a new version of AMG GPU drivers for Ubuntu 18.04.2 (version 19.10) (https://www.amd.com/en/support/graphics/radeon-500-series/radeon-rx-500-series/radeon-rx-580).
I installed the OpenCL part only and it works well!!
I think you can close this task as resolved!

Please provide the blend file with the model to be exported for us to reproduce the issue

I think this is how the new undo and redo system works in 2.8. It does take into account also the switch between the nodes, and i like this feature.

Wow :D my first python fix! Thank you a lot, you are awesome!

And i found a solution to the problem:
just add these lines of code after line 53 of the script

I can confirm in Ubuntu 18.04, it gives this error in the terminal:

I can confirm in Ubuntu 18.04 with a new file using today's 2019-04-11 version

That circle you are getting is because you have the lamp positioned near the cube, so the threshold is not only for the shadows, but also for the lamp's light.

I can reproduce it, however, be aware that you are using Displacement for the ground material and Eevee doesn't support displacement, so i would suggest you to connect the noises textures to the bump node and to the normal of the principled.

Please, add all the missing information to your report: OS System, GPU, Detailed description of the error and exact steps for us to test.

Update: using the proprietary AMD GPU drivers (version 18.50) with the command

./amdgpu-pro-install -y --opencl=pal,legacy --headless

works only with Linux Kernel 4.15 (i tried with 4.18, 4.20 and 5 but i get the same error when installing) and i don't want to downgrade to 4.15 just for OpenCL support.
So is there any mesa repository that i can use to install OpenCL?
Otherwise i will go with proprietary AMDGPU 18.50 and i will continue to get the crash of the shadow cube size.

According to this (https://www.reddit.com/r/linux_gaming/comments/7lsday/psa_there_is_a_headless_install_available_for/) the answer to my question is yes maybe...

According to this documentation (https://amdgpu-install.readthedocs.io/en/latest/install-installing.html) using the command:

I want to test, so i installed Ubuntu 18.04.2 from zero, now there are no extra AMD drivers installed.
So, i downloaded the latest AMD drivers from their website: amdgpu-pro-18.50-756341-ubuntu-18.04.
According to the link you sent (https://linuxconfig.org/install-opencl-for-the-amdgpu-open-source-drivers-on-debian-and-ubuntu) when i run

sudo dpkg -i ...

i get the following error:

Yeah, it is
https://blendermarket.com/products/boxcutter
Clay, you have to report this to the boxcutter developer, not here.

Please provide a screenshot for us to understand exactly what your issue is

Please provide the blend file. Also i notice you are using Blender 2.79, try with Blender 2.8 beta

It works in Ubuntu 18.04.2 with AMD RX580

I think you have a non compatible GPU with OpenGL version 3.0 which is too old to run Blender 2.8 (it requires at least OpenGL 3.3)

Yes, i can reproduce it in the today's 2019-04-03 build

Oh man, you are using Blender 2.80.43 which is a really old build. Download the latest version from here:
https://builder.blender.org/download/

I can't reproduce the issue.

For me it doesn't crash on Ubuntu 18.04.2 with an AMD RX 580, but the Hair is not visible in edit mode.
Can you try to Load Factory Settings and try again?

It crashes. I can reproduce it on Ubuntu 18.04.2

And again, it doesn't work in today's 2019-03-25 build:

Please share a blend file for us to reproduce the issue

My proposal would be to have M+0 to move the selected object to the master collection instead of M+1.

Please send us a blend file to reproduce the issue, and use the latest build of Blender 2.8 (your is from the 22nd of March)

I don't have any issues with today's build 2019-03-25, please try to Load Factory Settings then try again. Maybe a video showing what is being done could help developers understand and maybe fix the issue.

I don't have this issue in Ubuntu 18.04 with the same graphics card, please try to use the latest build of Blender 2.8 and Load Factory Settings for a clear blender startup file.
Then try to open the blend file with Load UI disabled like in the screenshot below.

I confirm it crashes and i get this error:

I would suggest you to try with the latest AMD drivers (18.50) you can download here:
https://www.amd.com/en/support/graphics/radeon-400-series/radeon-rx-400-series/radeon-rx-480

It seems like you are using a really old version. Please try the latest Blender 2.8 build from here: https://builder.blender.org/download/

Please, give us a blend file to test the issue

Then what about the caustics enabled by default?

Nope, Clamp is set to 0.

I have exposure -6.781 there because i'm dealing with real world Sun and Sky values such as 700 of strength for Sun and 60 for Sky. Since the measurement unit of the strength value is W/m2

Brecht, you wrote it, "in production files the clamp is enabled".
Most work i do is not for a short film, i do still images and having Clamp 0 is necessary. By the way, you said you set it to 10 because of noise, well i don't think it is the case since there is the Denoisier. And anyway having it set to 0 as default could prevent people with no experience to see weird results.

Nono, the clamp value remained 0 from Blender 2.7.

I confirm this issue!

I confirm! It does happen only when adding a Text object, for all the other objects it works.

It works with today's 11th March 2019 build! The animated values correctly update the materials!

Like this
https://developer.blender.org/T62215

I can't reproduce the issue with today's 2019-03-07 build. Please download the today's build and load factory settings, then try again to see if the same issue happens

Please can you provide a blend file to test?

Please can you add a description of the error with some screenshots and a blend file to test the issue?

Please can you provide a blend file to test?

It doesn't happen in Ubuntu 18.04, all works fine, but it doesn't work on Windows

Blender 2.78 is old, you should download Blender 2.79b from here:
https://www.blender.org/download/

Left: 2.8
Right: 2.7
This limitation is present also in 2.7

Yeah, it does get weird results in your blend.
However, i tried with the latest build of today's 2019-02-18 and it seems to work properly now:

I can confirm, it is shifted

I confirm, it crashes

Please try this:

• enable contact shadows in the shadows tab of the light properties panel
• change the shadows method from ESM to VSM in the shadows tab of the render properties panel

This method will reduce the ghosting of the walls.
Also enable High Bitdepth and Soft Shadows to remove the ghosting even further

Please provide a detailed description of the crash, specify the exact steps to reproduce it and specify if you are using Cycles or Eevee and maybe provide also a .blend file so we can test it.

It works for me

Please try this: go to File and click Load Factory Settings. Then try to see if this worked

1. This is the Particles.blend file where i saved a particles system and assigned to a plane:

2. Open a new project, go to File > Append and choose the "Particles Test" ParticlesSettings from the blend file above:

3. Now add a plane, go to Particles Settings and choose the "Particles Test" particles system from the list

4. Switch to Cycles render, and enter in rendered mode for the viewport... CRASH

ok thank you

And for empty.001 you had just the Display Orthographic option enabled.

I think they fixed it