Ryan Reporter
	Description • 12 years ago

User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0
Build ID: 20130313170052

Steps to reproduce:

Open Firefox beta 20


Actual results:

Back button has artifacts when mouse cursor moves over it or near it.


Expected results:

Back button is rendered cleanly on the screen.

	Mitza
	Comment 2 • 12 years ago

Does it reproduce with Clean profile or using Safe mode? https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles
This should be moved to Toolbars or General component.

	Ioana (away)
	Comment 3 • 12 years ago

I could reproduce this issue on my Windows 7 32bit, on Firefox 20 beta 7 and on the 03/26 Aurora and Nightly.

	Ekanan Ketunuti
	Comment 4 • 12 years ago

If you set `gfx.content.azure.enabled` to false in about:config, does this fix things?

	Ryan Reporter
	Comment 5 • 12 years ago

I have set the flag to false, and there is no artifacts or other issues.

	Ryan Reporter
	Comment 6 • 12 years ago

Doing so also makes the address bar pull-down black, (appearing when you begin to type a url or search term, for example). I don't know if that's a side effect of setting the gfx string to false though.

	Ryan Reporter
	Comment 7 • 12 years ago

Also, this bug does not appear when I set the toolbar to use small icons.

	Ekanan Ketunuti
	Comment 8 • 12 years ago

> Doing so also makes the address bar pull-down black...

is this happen if set `gfx.direct2d.disabled` to true?

	Ekanan Ketunuti
	Comment 9 • 12 years ago

I can reproduce on Mozilla/5.0 (Windows NT 6.1; rv:23.0) Gecko/20130415 Firefox/23.0

my graphics section:

Graphics
Adapter Description	Mobile Intel(R) 4 Series Express Chipset Family
Adapter Drivers	igdumdx32 igd10umd32
Adapter RAM	Unknown
ClearType Parameters	Gamma: 2200 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 100
Device ID	0x2a42
Direct2D Enabled	true
DirectWrite Enabled	true (6.2.9200.16492)
Driver Date	10-13-2011
Driver Version	8.15.10.2555
GPU #2 Active	false
GPU Accelerated Windows	1/1 Direct3D 10
Vendor ID	0x8086
WebGL Renderer	Google Inc. -- ANGLE (Mobile Intel(R) 4 Series Express Chipset Family)
AzureCanvasBackend	direct2d
AzureContentBackend	direct2d
AzureFallbackCanvasBackend	cairo

	Ryan Reporter
	Comment 10 • 12 years ago

I've switched content.azure.enabled to false and direct2d.disabled to true.

There are no artifact or other screen draw bugs.

	Ekanan Ketunuti
	Comment 11 • 12 years ago

(In reply to johnkfamily from comment #10)
> I've switched content.azure.enabled to false and direct2d.disabled to true.
> 
> There are no artifact or other screen draw bugs.

Thank you for testing this. :)

	David Baron :dbaron:
	Comment 12 • 11 years ago

Seems closely related to bug 849517, and maybe also related to bug 894542 and bug 901336, which all seem to be graphical issues with rounded borders with Intel graphics with Device ID 0x24a2.

	David Baron :dbaron:
	Comment 13 • 11 years ago

What does the Graphics section of your about:support say?

	David Baron :dbaron:
	Comment 14 • 11 years ago

And what does *your* Graphics section of about:support say?

	Ioana (away)
	Comment 15 • 11 years ago

(In reply to David Baron [:dbaron] (don't cc:, use needinfo? instead) from comment #13)
> What does the Graphics section of your about:support say?

I have changed my machine a while ago, so I can't get you that information anymore. All I know about the old machine's graphics is that it had a Intel G41 Express Chipset.

I now have Intel HD 4000 graphics and I can't reproduce the issue with it (tried on Firefox 20 and 25).

	Georg Fritzsche [:gfritzsche]
	Comment 16 • 11 years ago

I'm only seeing this intermittently (so i'm not entirely sure this is the same issue), but i've noticed it again with the current Nightly.

Graphics
--------
Adapter Description: Intel(R) HD Graphics Family
Adapter Description (GPU #2): NVIDIA NVS 4200M
Adapter Drivers: igdumd64 igd10umd64 igd10umd64 igdumdx32 igd10umd32 igd10umd32
Adapter Drivers (GPU #2): nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Adapter RAM: Unknown
Adapter RAM (GPU #2): 1024
Device ID: 0x0126
Device ID (GPU #2): 0x1057
Direct2D Enabled: true
DirectWrite Enabled: true (6.2.9200.16571)
Driver Date: 3-6-2011
Driver Date (GPU #2): 5-25-2011
Driver Version: 8.15.10.2321
Driver Version (GPU #2): 8.17.12.6871
GPU #2 Active: false
GPU Accelerated Windows: 1/1 Direct3D 10
Vendor ID: 0x8086
Vendor ID (GPU #2): 0x10de
WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Family Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote: false
AzureCanvasBackend: direct2d
AzureContentBackend: direct2d
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0

	Loic
	Comment 17 • 11 years ago

Georg, your GPU drivers are pretty old. Is it possible for you to update them and test?

	Milan Sreckovic [:milan] (needinfo for best results)
	Comment 18 • 11 years ago

(In reply to David Baron [:dbaron] (don't cc:, use needinfo? instead) from comment #12)
> Seems closely related to bug 849517, and maybe also related to bug 894542
> and bug 901336, which all seem to be graphical issues with rounded borders
> with Intel graphics with Device ID 0x24a2.

Setting qawanted to ask if we have a system like this available?

	Ioana (away)
	Comment 19 • 11 years ago

We don't have such a system. Anthony, can anyone on your side help here?

	u279076
	Comment 20 • 11 years ago

(In reply to Milan Sreckovic [:milan] from comment #18)
> Intel graphics with Device ID 0x24a2.

What GPU chipset does this hex code correlate to?

	Ioana (away)
	Comment 21 • 11 years ago

(In reply to Anthony Hughes, Mozilla QA (:ashughes) from comment #20)
> What GPU chipset does this hex code correlate to?

Bug 849517 comment 1 has some details on this.

	u279076
	Comment 22 • 11 years ago

(In reply to Ioana Budnar, QA [:ioana] from comment #21)
> (In reply to Anthony Hughes, Mozilla QA (:ashughes) from comment #20)
> > What GPU chipset does this hex code correlate to?
> 
> Bug 849517 comment 1 has some details on this.

That only tells me "Intel Series 4..." which covers an entire family of chipsets. I need to know specifically which GPU in the "Series 4" family the hex code 0x24a2 correlates to.