1195132 - Tooltips and some context menus are not painting correctly on Windows with OMTC in some situations

Status: NEW

(Core :: Graphics, defect)

Description

[szbarsky]

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:40.0) Gecko/20100101 Firefox/40.0
Build ID: 20150812163655

Steps to reproduce:

1)  Load about:config
2)  Right-click on any of the items


Actual results:

The context menu that comes up is about 8px tall and about 20px wide.  Only the tops of the first one or two letters of the first option are visible.


Expected results:

The context menu should have been the right size.

Comment 1

[szbarsky]

Additional information:

I.  The alt text tooltip on http://xkcd.com has the same problem.

II. I can still click where the options from the context menu _should_ be and they activate correctly.  Furthermore, they prevent hover effects on underlying content.  So they participate in hit testing; they're just not being painted. 

III. The context menu in other situations (like this web page) seems to work fine.

IV.  I have tried a clean profile and an uninstall and reinstall of Firefox, and the problem remains in both cases.

Comment 2

[[:Towkir] Ahmed]

Are they too small to see ? 
Can you attach a screenshot ?

Comment 3

[Loic]

Could you attach a screenshot, please.

Comment 4

[Boris Zbarsky [:bzbarsky]]

Reporter bisected this on nightlies and the regression range is http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=cb9f34f73ebe&tochange=9d8d16695f6a

Flipping the "layers.offmainthreadcomposition.enabled" preference to false makes the problem go away.

dvander, dzbarsky says you might know who should look into this.  Please feel free to request more information from reporter as needed!

Comment 5

[Boris Zbarsky [:bzbarsky]]

Graphics section from about:support:

Adapter Description	NVIDIA NVS 3100M
Adapter Drivers	nvd3dum nvwgf2um,nvwgf2um
Adapter RAM	512
Asynchronous Pan/Zoom	none
Device ID	0x0a6c
Direct2D Enabled	Blocked for your graphics driver version.
DirectWrite Enabled	false (6.2.9200.17461)
Driver Date	6-27-2010
Driver Version	8.17.12.5738
GPU #2 Active	false
GPU Accelerated Windows	0/1 Basic Blocked for your graphics driver version.
Subsys ID	215c17aa
Supports Hardware H264 Decoding	false
Vendor ID	0x10de
WebGL Renderer	Google Inc. -- ANGLE (NVIDIA NVS 3100M Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote	false
AzureCanvasBackend	skia
AzureContentBackend	cairo
AzureFallbackCanvasBackend	cairo
AzureSkiaAccelerated	0

Comment 6

[David Anderson [:dvander] - inactive, e-mail if emergency]

As suggested earlier a screenshot would help a lot.

Comment 7

[szbarsky]

Attachment: Bug1195132screenshot.png

This is a screenshot of when I select a submenu of the context menu. The mouse was above the bolded word "integer" when the screenshot was taken.

Comment 8

[Jeff Muizelaar [:jrmuizel]]

I'll try to reproduce this.

Comment 9

[Jeff Muizelaar [:jrmuizel]]

I can reproduce this with hardware acceleration enabled. Are you sure you were able to reproduce it without hardware acceleration?

Comment 10

[szbarsky]

Hardware acceleration was enabled. Disabling hardware acceleration fixes it.

Comment 11

[Jeff Muizelaar [:jrmuizel]]

This appears to be fixed by newer drivers.

Comment 12

[Jeff Muizelaar [:jrmuizel]]

Which xkcd showed the problem?

Comment 13

[Jeff Muizelaar [:jrmuizel]]

It looks like most popups when you have the windows classic theme turned on

Comment 14

[Jeff Muizelaar [:jrmuizel]]

Removing the shadow did not help.

Comment 15

[Jeff Muizelaar [:jrmuizel]]

I tried some other driver versions and they both worked:
9.18.13.1100
8.17.12.6721