1360517 - Google maps fails to render when viewport is larger than 2048px

Status: NEW

(Core :: Graphics, defect, P4)

Description

[Stuart Colville [:muffinresearch]]

Attachment: Screenshot of issue at 2049px DPR 2

STR:

* Running release (53.0 (64-bit)) and nightly (55.0a1 (2017-04-27) (64-bit))
* Using a 4k monitor
* When visiting google maps, the map renders initially and then turns black.

What's expected:

Google maps should render without error at viewports over 2048px

What actually happens:

This is seen in the console:

Error: WebGL warning: renderbufferStorage: Width or height exceeds maximum renderbuffer size.  maps:4084:431
Error: WebGL warning: texImage2D: Requested size at this level is unsupported.

Using responsive design mode the problem only occurs when the viewport width exceeds 2048px. 

It will work at over 2048px if the device pixel ratio is turned down to 1 from 2.

Using https://browserleaks.com/webgl shows:

Max Render Buffer Size: 4096
Max Texture Size: 4096

Testing chrome on the same screen there's no problem:

Chrome shows:

Max Render Buffer Size: 16384
Max Texture Size: 16384

Comment 1

[Stuart Colville [:muffinresearch]]

Looks like this is specific to the machine's GFX card, a newer machine with a radeon pro gfx card doesn't show the same problem on release or nightly and has the same buffer/texture settings as chrome.

Comment 2

[Phil]

I have had this problem for a long time and logged into bugzilla to open the exact same case. More information from a previous bug report is here:

https://bugzilla.mozilla.org/show_bug.cgi?id=1136499

The end result is that the larger the Firefox Google Maps window, it goes to black as you've said. It's been occuring for quite a few releases of Firefox and has actually driven my organization to not use Firefox.

I am using a MBP with a NVIDIA GeForce GT 750M 2048 MB Intel Iris Pro 1536 MB so it's not Radeon specific.

Comment 3

[Adam Stevenson [:adamopenweb]]

Stuart - Does this still reproduce for you? I can't reproduce in FF60 for OSX but also have the Radeon R9 gpu.