611545 - Can not display correctly if I use alt+tab for switching between World of Warcraft(full screen mode) and Firefox 4 b7

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Try]

User-Agent:       Mozilla/5.0 (Windows NT 5.1; rv:2.0b7) Gecko/20100101 Firefox/4.0b7
Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0b7) Gecko/20100101 Firefox/4.0b7

Can not display correctly if I use alt+tab for switching between World of Warcraft(full screen mode) and Firefox 4 b7

Part of the window is black,but you can close the browser.

Reproducible: Always

Steps to Reproduce:
1.open Firefox 4b7
2.open Wow
3.use alt+tab switching to desktop
4.Firefox 4b7 can not display correctly

Comment 1

[Maniac Vlad Florin (:vladmaniac)]

Are you sure this a Firefox problem? I noticed no trouble when ALT + TAB, even going on with two monitors with different resolutions. 

Can you provide us a screenshot of the issue? Maybe then things would be more clear. I am sure this comes by interaction with some types of processes, just need to figure out what kind.

Comment 2

[Matthias Versen [:Matti]]

Please post the graphic section of about:support.
Do you have the latest graphic card driver installed ?

Does it work if you disable hardware acceleration under in options/advanced ?

Comment 3

[Try]

Here is my graphic info.
=======================================================
  Graphics

        Adapter Description
        Mobile Intel(R) 965 Express Chipset Family

        Vendor ID
        8086

        Device ID
        2a02

        Adapter RAM
        Unknown

        Adapter Drivers
        igxprd32

        Driver Version
        6.14.10.5218

        Driver Date
        1-13-2010

        Direct2D Enabled
        Blocked on your graphics card because of unresolved driver issues.

        DirectWrite Enabled
        false

      GPU Accelerated Windows
      1/1 Direct3D 9

Comment 4

[Try]

Attachment: Screenshot

the screenshot of this issue

Comment 5

[Try]

When I use Firefox 4b6 everything is OK, but when I upgraded to b7 yesterday, the problem occurred.

Comment 6

[Maniac Vlad Florin (:vladmaniac)]

I see, I guess we're all going to do some WOW and see what happens

Comment 7

[Matthias Versen [:Matti]]

That is very likely a driver bug and it doesn't make sense to "do some wow" unless you have the same intel card.

Reporter: You failed to answer my last question from comment#2

Comment 8

[Bas Schouten (:bas.schouten)]

So b7 is the first release to get D3D9 acceleration. I guess WOW must somehow mess with the state of D3D9 on that intel driver. Curious.

Comment 9

[Try]

(In reply to comment #7)
> That is very likely a driver bug and it doesn't make sense to "do some wow"
> unless you have the same intel card.
> 
> Reporter: You failed to answer my last question from comment#2

Yes,It works if I disable hardware acceleration  :)

Comment 10

[Wayne Mery (:wsmwk)]

is this still seen in a current version of ff and drivers?

Comment 11

[Benoit Girard (:BenWa)]

Closing since this was reported against 4b7, please re-open if it occurs with a current version.