Blank screen with Windows x64 and hardware acceleration




3 years ago
2 years ago


(Reporter: Armando Villani, Unassigned, NeedInfo)


38 Branch
Windows 8.1

Firefox Tracking Flags

(Not tracked)


(Whiteboard: gfx-noted)


(2 attachments)



3 years ago
User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:40.0) Gecko/20100101 Firefox/40.0
Build ID: 20150401030204

Steps to reproduce:

Start Firefox

Actual results:

Firefox starts but show only a black screen instead of web pages.

Expected results:

Firefox show the actual content of web pages.

Starting in safe mode or unchecking "Use hardware acceleration when available" let Firefox display correctly.

I'm running a Windows 8.1 laptop with two switchable graphics card (Intel HD Graphics 4000 and AMD Radeon HD 8570M). x64 version of Firefox only has the problem, x86 version never experienced any problem on the same pc with hardware acceleration enabled. Manually switching enabled video card evidence that both graphics cards experience similar problem. Cards are running the latest drivers.


3 years ago
Hardware: x86 → x86_64
Version: Firefox 38 → 1.0 Branch


3 years ago
Version: 1.0 Branch → Firefox 38

Comment 1

3 years ago
Tested on Firefox 38.0b1 and 40.0a1 (Build ID 20150401030204).

Comment 2

3 years ago
Could you attach some screenshots (of the complete Firefox window) when you get the issue, please.

In addition, type about:support in the location bar and paste here the section "graphics".
Component: Untriaged → Graphics
Flags: needinfo?(armando.villani)
Product: Firefox → Core
Version: Firefox 38 → 38 Branch

Comment 3

3 years ago
Created attachment 8586838 [details]
Screenshot with Intel card enabled

Comment 4

3 years ago
Created attachment 8586839 [details]
Screenshot with AMD card enabled
Flags: needinfo?(armando.villani)

Comment 5

3 years ago
Adapter Description	Intel(R) HD Graphics 4000
Adapter Drivers	igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32
Adapter RAM	Unknown
Asynchronous Pan/Zoom	none
Device ID	0x0166
DirectWrite Enabled	false (6.3.9600.17415)
Driver Date	12-18-2014
Driver Version
GPU #2 Active	false
GPU Accelerated Windows	0/1 Basic (OMTC)
Subsys ID	00000000
Vendor ID	0x8086
WebGL Renderer	Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D11 vs_5_0 ps_5_0)
windowLayerManagerRemote	true
AzureCanvasBackend	skia
AzureContentBackend	cairo
AzureFallbackCanvasBackend	cairo
AzureSkiaAccelerated	0

Comment 6

3 years ago
That smells similar to bug 1090046 and bug 1096864.

If you keep HWA enabled and you disable OMTC (layers.offmainthreadcomposition.enabled = false in about:config, restart to apply), does it change something?
Flags: needinfo?(armando.villani)

Comment 7

3 years ago
Yes, switching to false make 38.0 (20150330154247) but 40.0 (20150401030204).
Flags: needinfo?(armando.villani)

Comment 8

3 years ago
Yes, switching to false make 38.0 (20150330154247) working but not 40.0 (20150401030204).
Whiteboard: gfx-noted
Armando, can you get a regression window using mozregression?
Flags: needinfo?(armando.villani)
Keywords: regressionwindow-wanted

Comment 10

3 years ago
19:06.30 LOG: MainThread Bisector INFO Narrowed inbound regression window from [03d20761, 9862bab2] (3 revision
da7bc5, 9862bab2] (2 revisions) (~1 steps left)
19:06.30 LOG: MainThread Bisector INFO Oh noes, no (more) inbound revisions :(
19:06.30 LOG: MainThread Bisector INFO Last good revision: e7da7bc52c94
19:06.31 LOG: MainThread Bisector INFO First bad revision: 9862bab2c301
19:06.31 LOG: MainThread Bisector INFO Pushlog:

Is this what you need?
Flags: needinfo?(armando.villani)
Yes, thanks!

With the latest code, safe mode or no HW acceleration improves things.

Increasing blocklisting should move us in the same direction that safe mode/no HW acceleration does. To rephrase, increasing blocklisting should improve things.

Based on the regression range above, backing out reduced blocklisting broke things.  To rephrase, increasing blocklisting breaks things.

Keywords: regressionwindow-wanted

Comment 12

2 years ago
Bug still present in 43.0.1 (release)
(In reply to Armando Villani from comment #12)
> Bug still present in 43.0.1 (release)

Are there newer drivers available for your graphics cards?
Flags: needinfo?(armando.villani)
about:support graphics from comment 5 is with Intel - 64-bit or 32-bit?

It would be useful to see all four configurations - Intel and AMD, 32-bit and 64-bit.  As I understand, in 43.0.1 (and still?), the 32-bit is OK, with either card, with or without hardware acceleration, and 64-bit is bad, with both cards, with hardware acceleration, but OK without hardware acceleration.

Is this correct?
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