841283 - Hovering over taskbar preview lobs off titlebar area

Status: UNCONFIRMED

(Core :: Graphics, defect)

Description

[Adam Frisby]

Attachment: MkeeJlH.jpg

User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
Build ID: 20130201065344

Steps to reproduce:

Minimize Firefox
Hover over Firefox taskbar icon
Hover over window preview

--

Windows 8
Nvidia Geforce 8800 GT


Actual results:

The titlebar area is not displays. The entire window is shifted upwards and a black bar appears across the bottom of the window to fill in the empty space.

The bug also is visible in the previews in the taskbar area itself as well.

I've attached a picture of the issue


Expected results:

Display entire window without black bars

Comment 1

[Adam Frisby]

Would like to clarify this effects the latest release not just nightly

Comment 2

[(mostly gone) XtC4UaLL [:xtc4uall]]

Is your Issue reproducible when you disable the Hardware Acceleration and restart Firefox?
Please post/attach the Content of the Graphics Section you can get via "about:support" after you re-enabled Hardware Acceleration.

Comment 3

[Adam Frisby]

Issue is not reproducible with Hardware Acceleration disabled

Adapter Description: NVIDIA GeForce 8800 GT
Adapter Description (GPU #2)ATI Radeon HD 3200 Graphics
Adapter Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Adapter Drivers (GPU #2): aticfx64 aticfx64 aticfx32 aticfx32 atiumd64 atidxx64 atiumdag atidxx32 atiumdva atiumd6a atitmm64
Adapter RAM: 512
Adapter RAM (GPU #2): 256
Device ID: 0x0611
Device ID (GPU #2): 0x9610
Direct2D Enabled: true
DirectWrite Enabled: true (6.2.9200.16433)
Driver Date: 12-29-2012
Driver Date (GPU #2): 11-16-2012
Driver Version: 9.18.13.1090
Driver Version (GPU #2): 8.970.100.7000
GPU #2 Active: false
GPU Accelerated Windows: 1/1 Direct3D 10
Vendor ID: 0x10de
Vendor ID (GPU #2): 0x1002
WebGL Renderer: Google Inc. -- ANGLE (NVIDIA GeForce 8800 GT )
AzureCanvasBackend: direct2d
AzureContentBackend: direct2d
AzureFallbackCanvasBackend: cairo

Issue is present on displays attached to the GeForce and the Radeon

Comment 4

[Adam Frisby]

More information.

ATI Radeon HD 3200 is the on-board GPU and the NVIDIA GeForce 8800 GT is a discrete video card.

The issue is present when the on-board ATI Radeon HD 3200 is enabled in the BIOS (disabling the card from within Windows still produces video output and issue persists).

The issue is not present if I disable the on-board ATI Radeon HD 3200 in the BIOS.

The ATI Radeon HD 3200 is a legacy card and driver support is not the best. The issue could be with the card/driver, but I am unable to reproduce the issue with any other program/window.