Blur effect wrong about gnome-shell-extension-blyr

[nokyan]

The new version seems to have fixed the driver crash, it's working completely fine now.
Well, it's extremely laggy, but on the other hand... that's pretty much everything on my PC... :D

[yozoon]

That's very interesting. I currently have no idea what could cause this bug, as the shader seems to completely remove the blue and green channels. What version of cogl is installed on your system?

[yozoon]

Okay, now I was able to reproduce the issue with VMWare. This is indeed a very weird behaviour of the shader.

[yozoon]

@Warmuser I just uploaded an updated version of the shader which fixed the strange coloring issue in VMWare Player for me. Would be great if you could test the changes on your system as well!

[Warmuser]

Ok, this is the resoult.. Anyway I suggest to leave these effect for an alternative Halloween setting.. It looks creepy. xD

[yozoon]

To make the shader debugging process more efficient I created a stand-alone GJS app, which uses the current GLSL shader from the extension. As of the moment the issue seems to be AMD graphics specific, so my hands are a little tied in this regard because I can only test on Intel and Nvidia Systems. I'd really appreciate it if you tried to play around with the shader source in the repository of the stand-alone app. My current suspicion is that the GLSL compiler on AMD systems interprets some GLSL commands in an unintended way, but unfortunately I have been unable to find similar bug reports when I googled the topic. Please report your findings in the Issues section of the stand-alone app!

[ewlsh]

My red tint is gone. 👍

[webmastak]

cogl 1.22.2

If comment line shader.glsl color.rgb = color.rgb * brightness; It works, but the colors are wrong.

I have the same issue on Antergos. Also with Gnome 3.24.2 and cogl 1.22.2. If it helps, I have an RX 480 GPU with AMDGPU 1.2.0-1

[yozoon]

@webmastak could you explain what you mean by "it works"? Because on the screenshots you uploaded the blur seems to work, but the colors are wrong, so I don't quite understand what changed when you commented out the mentioned line in the shader.

[webmastak]

With a commented line color.rgb = color.rgb * brightness; It does not work in red, but colors are not natural!

[nokyan]

I also have that issue plus it's crashing my GPU or GPU driver... using the radeon driver on an AMD Radeon HD 8400, this is the crashlog from journalctl: https://pastebin.com/93UZT8mi
EDIT: Changed the paste exposure from Private to Unlisted... oops...

[ewlsh]

Same issue here. AMD Radeon R9 M370X.

[Warmuser]

I got a similar problem, same distro specs but with the integrate graphic chip:

http://imgbox.com/6aRW2tG9
http://imgbox.com/trKSj6M7

[nokyan]

@Warmuser I got a similar result when I tried that extension in a virtual machine, using the VirtualBox drivers.

[Warmuser]

@ManicRobot these extension was work really well on ubuntu 16.10 with Virtualbox . But a month I switched to Manjaro 17.0.2 on VMWare Workstation 12 Player which is much stable then VB for me. Thats because up to now I'm doing testing to learn Linux before to install the Distro as my main system. In the future I will install it to my physical machine. But I don't think the bug depends directly from te VM :)

[Warmuser]

@yozoon Thanks, I will update the extension and give you a response! :)

[webmastak]

Not works

[Warmuser]

I got Intel graphics HD4000 only.. It should work? :/

[yozoon]

Since there was no new report of this issue for nearly a year, I'm closing it now.