1213265 - Failure to create WebGL context in 43.0a2

Status: RESOLVED WORKSFORME

(Core :: Graphics: CanvasWebGL, defect)

Description

[Christiane Ruetten [INACTIVE]]

I'm observing this on Aurora 43.0a2 on Mac OS X 10.9.5. It's working fine on both Stable and Nightly.

STR:

1. open http://cr.github.io/WebGLedSLed/

Expected result:
- No error, a working WebGL context

Actual Result:
- Error: WebGL: Error during native OpenGL init. WebGLedSLed:234:4
- Error: WebGL: WebGL creation failed. WebGLedSLed:234:4

This is the code that fails:

233    gl = canvas.getContext("webgl") ||
234         canvas.getContext("experimental-webgl");

Comment 1

[Christiane Ruetten [INACTIVE]]

This is the setup I'm using (triple display on Retina Mac 15")

NVIDIA GeForce GT 650M:

  Chipset Model:	NVIDIA GeForce GT 650M
  Type:	GPU
  Bus:	PCIe
  PCIe Lane Width:	x8
  VRAM (Total):	1024 MB
  Vendor:	NVIDIA (0x10de)
  Device ID:	0x0fd5
  Revision ID:	0x00a2
  ROM Revision:	3688
  gMux Version:	3.2.19 [3.2.8]
  Displays:
Color LCD:
  Display Type:	Retina LCD
  Resolution:	2880 x 1800
  Retina:	Yes
  Pixel Depth:	32-Bit Color (ARGB8888)
  Main Display:	Yes
  Mirror:	Off
  Online:	Yes
  Built-In:	Yes
DELL U2713H:
  Resolution:	2560 x 1440 @ 59 Hz
  Pixel Depth:	32-Bit Color (ARGB8888)
  Display Serial Number:	C6F0K4230A8L
  Mirror:	Off
  Online:	Yes
  Rotation:	Supported
  Connection Type:	DisplayPort
  Television:	Yes
DELL U2410:
  Resolution:	1200 x 1920 @ 59 Hz
  Pixel Depth:	32-Bit Color (ARGB8888)
  Display Serial Number:	F525M1BPC2PL
  Mirror:	Off
  Online:	Yes
  Rotation:	90
  Connection Type:	DisplayPort
  Television:	Yes

Comment 2

[u279076]

I'm unable to reproduce this on my retina Macbook Pro 13" running Mac OS 10.11 connected to a Dell U2410 display. The fact that this happens on Aurora but not on Nightly is extremely odd. Could you try this on a new profile to see if it reproduces? If so, does this happen for you when you're not connected to any external monitors?

Comment 3

[Christiane Ruetten [INACTIVE]]

Your hunch was correct that it's connected to the profile:

- fresh profile, any display config: works
- old profile, single display: broken

Do you have a suggestion how to go about debugging? The profile has only four active add-ons, none of which should be messing with WebGL.

Comment 4

[Kelsey Gilbert [:jgilbert]]

Reopen if this is still a problem.