Created attachment 722894 [details] FF.PNG (screenshot) User Agent: Mozilla/5.0 (Windows NT 5.1; rv:19.0) Gecko/20100101 Firefox/19.0 Build ID: 20130307023931 Steps to reproduce: Minimized one of firefox windows and then restore it back. Actual results: a whole white window with only black bars on top and bottom showed Expected results: correctly restored window
Does it work in the firefox safemode ? http://support.mozilla.org/en-US/kb/Safe+Mode Please post the graphic section from about:support if the safemode makes it working
I could not reproduce the problem in safe mode. about:support section Graphics Adapter DescriptionATI Radeon HD 4200Adapter Driversati2dvagAdapter RAMUnknownDevice ID0x9710Direct2D EnabledBlocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer.DirectWrite Enabledfalse (0.0.0.0)Driver Date9-18-2009Driver Version8.660.0.0GPU #2 ActivefalseGPU Accelerated Windows3/3 Direct3D 9Vendor ID0x1002WebGL RendererGoogle Inc. -- ANGLE (ATI Radeon HD 4200) AzureCanvasBackendcairoAzureContentBackendnoneAzureFallbackCanvasBackendnone (the support page should be made me more copy/paste friendly)
Disabling the hardware acceleration in tools/options/advanced/general followed by a Firefox restart should fix this.
Component: Untriaged → Graphics
Product: Firefox → Core
Summary: blank white/black window after back from minimize → blank white/black window after back from minimize with ATI Radeon HD 4200
(In reply to Roman Bednarek from comment #2) > (the support page should be made me more copy/paste friendly) There is a button for that on top of about:support, use it to copy and remove the parts you don't need to publish. Are your GPU drivers up-to-date? If not, could you update, please.
I have upgraded the driver. Not much changed, the window is now whole black. It is not always reproducible, just from time to time, and goes back to normal after mouse click. updated about:support Graphics Adapter Description ATI Radeon HD 4200 Adapter Drivers ati2dvag Adapter RAM Unknown Device ID 0x9710 DirectWrite Enabled false (0.0.0.0) Driver Date 11-16-2012 Driver Version 8.970.100.7000 GPU #2 Active false GPU Accelerated Windows 3/3 Direct3D 9 Vendor ID 0x1002 WebGL Renderer Google Inc. -- ANGLE (ATI Radeon HD 4200) AzureCanvasBackend cairo AzureContentBackend none AzureFallbackCanvasBackend none
You need to log in before you can comment on or make changes to this bug.