1116988 - Graphical corruption when switching from integrated to discrete graphics

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[p.r.gotch]

Attachment: Screen Shot 2015-01-01 at 19.26.24.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:34.0) Gecko/20100101 Firefox/34.0
Build ID: 20141125180439

Steps to reproduce:

Under Mac OS X 10.10.1 on a Late 2011 MacBook Pro with Intel HD3000 and ATI 6770M graphics.

- Ensure Integrated Graphics are currently in use, gfxcardstatus is a useful tool for this.
- Start Firefox
- Start an application which causes the discrete GPU to be switched to
- Observe that the Firefox window has graphical corruption. The corruption disappears if the Firefox window is clicked on to raise/select it.

The Window is not corrupted when a switch back from discrete graphics happens. This corruption did not happen under OS X 10.9 on the same machine

This may be a more general issue as I've seen similar issues with Thunderbird. I've not been able to reproduce the issue with any other program.


Actual results:

The Firefox window is corrupted as shown in the attached image


Expected results:

The Firefox window should not be corrupted

Comment 1

[Loic]

Could you type about:support and paste the section "graphics".

Does it happen with HWA disabled?
http://support.mozilla.org/en-US/kb/forum-response-disable-hardware-acceleration

Comment 2

[p.r.gotch]

Having tested it does not happen with HWA disabled.

Also from my testing today it looks like my steps to reproduce are missing a step.

It appears to *only* happen when switching spaces after the graphics switch from integrated to radeon has happened so the correct steps would be:

- Ensure Integrated Graphics are currently in use, gfxcardstatus is a useful tool for this.
- Start Firefox
- Start an application which causes the discrete GPU to be switched to
- Move to a different space
- Move back to the space containing firefore
- Observe that the Firefox window has graphical corruption. The corruption disappears if the Firefox window is clicked on to raise/select it.

Comment 3

[Loic]

Paste the "graphics" section of about:support, please.

Are your GPU drivers up-to-date?

Comment 4

[p.r.gotch]

The Graphics section contains:

Device ID	0x 126
GPU Accelerated Windows	1/1 OpenGL (OMTC)
Vendor ID	0x8086
WebGL Renderer	ATI Technologies Inc. -- AMD Radeon HD 6770M OpenGL Engine
windowLayerManagerRemote	true
AzureCanvasBackend	quartz
AzureContentBackend	quartz
AzureFallbackCanvasBackend	none
AzureSkiaAccelerated	0

Under OS X, at least for chips like the 6770M in this laptop, the graphics drivers are built in to the OS and distributed by Apple. I'm on the latest non-beta 10.10 release therefore I assume I have the latest graphics drivers available from Apple.

Comment 5

[Joran]

I am attaching a screenshot where I have exactly the same problem, but under firefox. It happens when the window is not in the foreground (my case: popup from outlook web access).

Graphic section:
Device-ID	0x 126
GPU-versnelde vensters	1/1 OpenGL (OMTC)
Vendor-ID	0x8086
WebGL-renderer	ATI Technologies Inc. -- AMD Radeon HD 6770M OpenGL Engine
windowLayerManagerRemote	true
AzureCanvasBackend	quartz
AzureContentBackend	quartz
AzureFallbackCanvasBackend	none
AzureSkiaAccelerated	0

MacBook Prop late 2011 15" ATI HD6770M, Mac OSX 10.10.2, firefox 35.0.1

Comment 6

[Joran]

Attachment: Firefox screen corruption

Comment 7

[p.r.gotch]

This was fixed by Apple in OS X 10.10.4

Comment 8

[Joran]

Confirming that the problem does not occur anymore on my system.