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"WebGL creation failed" strings on about:support in Firefox 67.0 with Mesa 19.0.5 for WebGL 2

Submitted by kay..@..il.com

Assigned to Default DRI bug account

Link to original bug (#110837)

Description

Steps to reproduce:

  1. Start Firefox.
  2. Open about:support in a Firefox.
  3. Look at "WebGL 2" info strings (search for a "webgl 2" substring).

Info strings contains "WebGL creation failed: * " or no info at all.

Expected Results: info strings contains descriptions, as it is with a "WebGL 1".

System: openSUSE 15.0 + Mesa 19.0.5 + Firefox 67.0. ATI (AMD) Radeon Evergreen Cedar, TeraScale 2. AFAIR Mesa 19.0.4 and before works well.

Firefox works, but supposedly has some issues.

:~>glxinfo | grep OpenGL OpenGL vendor string: X.Org OpenGL renderer string: AMD CEDAR (DRM 2.50.0 / 4.12.14-lp150.12.61-default, LLVM 7.0.1) OpenGL core profile version string: 3.3 (Core Profile) Mesa 19.0.5 OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.1 Mesa 19.0.5 OpenGL shading language version string: 1.40 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.1 Mesa 19.0.5 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10 OpenGL ES profile extensions:

Version: 19.0

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