1298631 - text severely distorted

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect, P3)

Description

[Wayne Mery (:wsmwk)]

Attachment: FF gfx graphics rendering problem BMO show_bug tab.png

just opened the BMO url in a tab. immediately appeared as attached (not scrolled). Perhaps related to bug 1298624. But unlike bug 1298624, in this startup, I have layers.acceleration.force-enabled set to false (it was set to true in an earlier attempt to work around accessibility being enabled in firefox)

Nightly build. this been happening for a few hours.

Comment 1

[Wayne Mery (:wsmwk)]

Attachment: FF-about-troubleshooting-20160827-220pm.txt

also this was only a few minutes after restarting firefox

Comment 2

[Lee Salzman [:lsalzman]]

It would help to have more information. Could you please tell us:

* steps to reproduce
* Graphics section of about:support
* what platform you are on

Comment 3

[Wayne Mery (:wsmwk)]

(In reply to Lee Salzman [:lsalzman] from comment #2)
> It would help to have more information. Could you please tell us:
> 
> * steps to reproduce
per comment 0. I have nothing more specific. The page just comes up wrong, no scrolling needed. Happened on multiple pages - displays wrong on first rendering. Have more screen shots if that's helpful.

> * Graphics section of about:support
see attachment 8785616 [details]

> * what platform you are on
win7 64bit. Firefox 64bit


I rebooted my OS and haven't seen this for almost two days. But it might not actually be gone, in which case perhaps related to bug Bug 1295075

Comment 4

[Lee Salzman [:lsalzman]]

Hmm, Skia is not being used here at all from the info, so this is unrelated to the recent Skia deployment on unaccelerated Windows.

It is using D2D. Bas, ideas?

Comment 5

[Mason Chang [Inactive] [:mchang]]

Can you also please try with a clean profile? There are a lot of add ons there. Thanks!

Comment 6

[Bas Schouten (:bas.schouten)]

(In reply to Mason Chang [:mchang] from comment #5)
> Can you also please try with a clean profile? There are a lot of add ons
> there. Thanks!

Not to mention several 'force-enabled' prefs related to graphics, I suspect those..

Comment 7

[Wayne Mery (:wsmwk)]

(In reply to Mason Chang [:mchang] from comment #5)
> Can you also please try with a clean profile? There are a lot of add ons
> there. Thanks!

Good idea, wish I had thought of it at the time.  Right now I'm not currently able to reproduce.  If it happens again maybe I will give it a shot before attempting a reboot.

Comment 8

[Wayne Mery (:wsmwk)]

(In reply to Bas Schouten (:bas.schouten) from comment #6)
> (In reply to Mason Chang [:mchang] from comment #5)
> > Can you also please try with a clean profile? There are a lot of add ons
> > there. Thanks!
> 
> Not to mention several 'force-enabled' prefs related to graphics, I suspect
> those..

Are you referring to these?
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-d3d11: false
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-warp: false
layers.acceleration.force-enabled: true

Are there others?

(I think those have not changed in ages.)

Comment 9

[Wayne Mery (:wsmwk)]

In the last two days I have not seen distorsion. But I have seen minor issues, like some BMO queries sometimes finish with a small white box in the space where the animated graphic had been displaying

I've now changed
layers.acceleration.force-enabled > false
layers.acceleration.disabled > false
gfx.direct2d.disabled > false
(not sure if there are others? will see what happens)

graphics in troubleshooting now shows

Graphics
--------

Features
Compositing: Direct3D 11
Asynchronous Pan/Zoom: wheel input enabled; touch input enabled
WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 3000 Direct3D11 vs_4_1 ps_4_1)
WebGL2 Renderer: WebGL creation failed: * Refused to create native OpenGL context because of blacklist entry: WEBGL_NATIVE_GL_OLD_INTEL * Exhausted GL driver options.
Hardware H264 Decoding: No; Hardware video decoding disabled or blacklisted
Audio Backend: wasapi
Direct2D: true
DirectWrite: true (6.2.9200.17568)
GPU #1
Active: Yes
Description: Intel(R) HD Graphics 3000
Vendor ID: 0x8086
Device ID: 0x0126
Driver Version: 9.17.10.4229
Driver Date: 5-26-2015
Drivers: igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32
Subsys ID: 21d117aa
RAM: Unknown
GPU #2
Active: No
Description: NVIDIA Quadro 1000M
Vendor ID: 0x10de
Device ID: 0x0dfa
Driver Version: 10.18.13.5445
Driver Date: 11-5-2015
Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Subsys ID: 21d117aa
RAM: 2048
Diagnostics
ClearType Parameters: Gamma: 2.2 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 400
AzureCanvasAccelerated: 0
AzureCanvasBackend: direct2d 1.1
AzureContentBackend: direct2d 1.1
AzureFallbackCanvasBackend: cairo
ClearType Parameters: Gamma: 2.2 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 400

Comment 10

[Roman R.]

Attachment: Normal look

Comment 11

[Roman R.]

Attachment: distorted look

Comment 12

[Roman R.]

This may be related to what I've observed for the last several days. It seems to happen after scrolling. I have attached two screenshots (before scrolling and after).

Switching to a different tab and returning to the tab with the problem repaints the problematic tab correctly.

Comment 13

[Roman R.]

This bug may be related to bug 1298373

Comment 14

[Roman R.]

I am on 51.0a1 (2016-09-05), 64-bit Win 8.1.

Here's the graphics section of about:support:

Compositing	Basic
Asynchronous Pan/Zoom	none
WebGL Renderer	Google Inc. -- ANGLE (AMD Radeon HD 7640G Direct3D9Ex vs_3_0 ps_3_0)
WebGL2 Renderer	ATI Technologies Inc. -- AMD Radeon HD 7640G
Hardware H264 Decoding	No; Hardware video decoding disabled or blacklisted
Audio Backend	wasapi
DirectWrite	true (6.3.9600.18123)
GPU #1
Active	Yes
Description	AMD Radeon HD 7640G
Vendor ID	0x1002
Device ID	0x9903
Driver Version	15.200.1062.1004
Driver Date	8-3-2015
Drivers	aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
Subsys ID	1833103c
RAM	512
Diagnostics
AzureCanvasAccelerated	0
AzureCanvasBackend	skia
AzureContentBackend	skia
AzureFallbackCanvasBackend	cairo
Decision Log
HW_COMPOSITING	
disabled by user: Disabled by pref
D3D11_COMPOSITING	
unavailable by default: Hardware compositing is disabled
D3D9_COMPOSITING	
unavailable by default: Hardware compositing is disabled
DIRECT2D	
unavailable by default: Direct2D requires Direct3D 11 compositing
D3D11_HW_ANGLE	
unavailable by default: D3D11 compositing is disabled
disabled by env: D3D11 compositing is disabled

Comment 15

[Mason Chang [Inactive] [:mchang]]

(In reply to Roman R. from comment #14)
> I am on 51.0a1 (2016-09-05), 64-bit Win 8.1.
> 
> Here's the graphics section of about:support:
> 
> Compositing	Basic
> Asynchronous Pan/Zoom	none
> WebGL Renderer	Google Inc. -- ANGLE (AMD Radeon HD 7640G Direct3D9Ex vs_3_0
> ps_3_0)
> WebGL2 Renderer	ATI Technologies Inc. -- AMD Radeon HD 7640G
> Hardware H264 Decoding	No; Hardware video decoding disabled or blacklisted
> Audio Backend	wasapi
> DirectWrite	true (6.3.9600.18123)
> GPU #1
> Active	Yes
> Description	AMD Radeon HD 7640G
> Vendor ID	0x1002
> Device ID	0x9903
> Driver Version	15.200.1062.1004
> Driver Date	8-3-2015
> Drivers	aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64
> atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
> Subsys ID	1833103c
> RAM	512
> Diagnostics
> AzureCanvasAccelerated	0
> AzureCanvasBackend	skia
> AzureContentBackend	skia
> AzureFallbackCanvasBackend	cairo
> Decision Log
> HW_COMPOSITING	
> disabled by user: Disabled by pref
> D3D11_COMPOSITING	
> unavailable by default: Hardware compositing is disabled
> D3D9_COMPOSITING	
> unavailable by default: Hardware compositing is disabled
> DIRECT2D	
> unavailable by default: Direct2D requires Direct3D 11 compositing
> D3D11_HW_ANGLE	
> unavailable by default: D3D11 compositing is disabled
> disabled by env: D3D11 compositing is disabled

Any particular reason you're disabling hardware acceleration? Does this still happen with hardware acceleration enabled?

Also, if you go to about:config, change the pref "gfx.content.azure.backends" to "cairo", restart nightly, does it still happen?

Comment 16

[Wayne Mery (:wsmwk)]

Sorry, I had to punt and disable HWA.  Losing too much productivity and not enough time available to do diagnosis.

Comment 17

[Wayne Mery (:wsmwk)]

(In reply to Roman R. from comment #13)
> This bug may be related to bug 1298373

Roman, the patch landed on Sept 13. Does sept 14 or newer build help you?

Comment 18

[Emma Humphries ☕️🎸🧞‍♀️✨ (she/they) [:emceeaich] (Pacific Time) use needinfo]

Bulk move of gfx-noted bugs without priority to P3 for tracking.

Comment 19

[Roman R.]

I haven't experienced this problem for months. Must have been fixed. Thanks