1067100 - corrupt gui when switching from fullscreen program

Status: UNCONFIRMED

(Core :: Graphics, defect)

Description

[imbacen]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0
Build ID: 20140913030206

Steps to reproduce:

1. Have Nightly open and as active window
2. Click on a fullscreen program in taskbar which is already running
3. Press windows key to get out of the fullscreen program.


Actual results:

Nightly GUI becomes completely corrupt and browser must be restarted. It only happens with Nightly, no other browser or program experiences the same thing. Also tried an old install of FF 26.0 and it is ok. See screen capture: https://www.youtube.com/watch?v=tQwDC0bwhmw


Expected results:

Nightly should display correctly.

Comment 1

[Matthias Versen [:Matti]]

Please post the graphic section from about:support (enter as URL in Firefox).

Comment 2

[imbacen]

Graphics
--------

Adapter Description: ATI Mobility Radeon HD 5730
Adapter Drivers: atiu9p64 aticfx64 aticfx64 atiu9pag aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
Adapter RAM: 1024
Device ID: 0x68c0
Direct2D Enabled: true
DirectWrite Enabled: true (6.2.9200.16571)
Driver Date: 1-22-2010
Driver Version: 8.692.1.0
GPU #2 Active: false
GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC)
Subsys ID: 1c221043
Vendor ID: 0x1002
WebGL Renderer: Google Inc. -- ANGLE (ATI Mobility Radeon HD 5730 Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote: true
AzureCanvasBackend: direct2d
AzureContentBackend: direct2d
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0


I already tried to update my GPU drivers to Catalyst 14.4 but the install fails with black screen so I have to stay on this.

Comment 3

[Matthias Versen [:Matti]]

Does it work if you disable the hardware acceleration under (alt key)/tools/options/advanced/general:/[]Use Hardware acceleration when available (Firefox restart required AFAIK)

Comment 4

[imbacen]

Disabling hw acceleration makes it work.

To be honest.. unless someone has irresistible urge to debug old AMD drivers better close this bug and spend your time in some better way. I will try to switch to an older driver or something.

Comment 5

[Matthias Versen [:Matti]]

I'm only a bug triager and do not decide what or if the developers will do something. We can blacklist your graphic card driver in Firefox as example and all users with this driver will not have the problem without looking for a solution for their problem and finding the hardware acceleration switch in the options.