User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0 Build ID: 20160607080223 Steps to reproduce: I recently upgraded to 47.0.0 and the screen doesn't redraw until: i "force" it by resizing the window / changing window focus / switching workspaces etc... i also "force" it my manually dragging a scrollbar on a firefox window with the left mouse button i wait for a few seconds I am using Arch Linux with kernel 4.6.2 xf86-video-intel 1:2.99.917+654+ga508b11-1 mesa 11.2.2-1 Hardware acceleration does not appear to be part the issue (happens when it is on or off) installed addons do not appear to be part of the issue mozilla.org builds are also affected about:support graphics: Adapter Description Intel Open Source Technology Center -- Mesa DRI Intel(R) Haswell Mobile Asynchronous Pan/Zoom none Device ID Mesa DRI Intel(R) Haswell Mobile Driver Version 3.0 Mesa 11.2.2 GPU Accelerated Windows 0/1 Basic (OMTC) Supports Hardware H264 Decoding No Vendor ID Intel Open Source Technology Center WebGL Renderer Intel Open Source Technology Center -- Mesa DRI Intel(R) Haswell Mobile windowLayerManagerRemote true AzureCanvasAccelerated 0 AzureCanvasBackend cairo AzureContentBackend cairo AzureFallbackCanvasBackend none Actual results: Window does not redraw Expected results: Window redraws and looks responsive
Could you type about:config in the location bar and set gfx.xrender.enabled to true, then restart Firefox to apply. (xrender has been disabled by default in 47) Does it fix your issue?
Component: Untriaged → Graphics: Layers
Product: Firefox → Core
Hardware: Unspecified → x86_64
I was experiencing the same problem. Setting gfx.xrender.enabled to true fixed it. Thank you _so_ much.
Can you try Nightly with gfx.xrender.enabled set to false?
The situation is the same on Nightly 50.0a1 (2016-06-11): the issue occurs with gfx.xrender.enabled set to false, but not with gfx.xrender.enabled set to true.
(In reply to Loic from comment #1) > Could you type about:config in the location bar and set gfx.xrender.enabled > to true, then restart Firefox to apply. (xrender has been disabled by > default in 47) > > Does it fix your issue? Yes, this fixed my issue. Thank you. -- The same issue occurs on nightly as pierrepaulpaquin says.
josuke answered in comment 5, so removing the needinfo.
Summary: Firefox 47 window does not redraw until "forced" or after a few seconds → Firefox 47 window does not redraw until "forced" or after a few seconds with XRender disabled
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