Created attachment 8488845 [details] Creepy Artifacts This has been happening off and on for a while now. Every so often some element or image with text when scrolling creates this construction paper patchwork artifacts. I haven't seen it anywhere else in any other major browser. ------------------------------------- Graphics Adapter Description AMD Radeon HD 7900 Series Adapter Description (GPU #2) Intel(R) HD Graphics 4000 Adapter Drivers aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Adapter Drivers (GPU #2) igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32 Adapter RAM 3072 Adapter RAM (GPU #2) Unknown ClearType Parameters D [ Gamma: 2200 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 100 ] D [ Gamma: 2200 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 50 ] Device ID 0x6798 Device ID (GPU #2) 0x0162 Direct2D Enabled true DirectWrite Enabled true (6.3.9600.17111) Driver Date 8-11-2014 Driver Date (GPU #2) 5-16-2014 Driver Version 14.200.1004.0 Driver Version (GPU #2) 10.18.10.3621 GPU #2 Active false GPU Accelerated Windows 1/1 Direct3D 11 (OMTC) Subsys ID 32111682 Subsys ID (GPU #2) 0000000c Vendor ID 0x1002 Vendor ID (GPU #2) 0x8086 WebGL Renderer Google Inc. -- ANGLE (AMD Radeon HD 7900 Series Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote true AzureCanvasBackend direct2d AzureContentBackend direct2d AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0 gfx.direct3d.last_used_feature_level_idx 0
Does it go away if you set gfx.direct2d.disabled to true in about:config?
Its hard to pin down because the corruption happens randomly. I'll try the d2d toggle the next time I see it.
I been getting this, same thing as the attached picture by Bennet. Been obsessing over it for the past month. I do know it is HW acceleration related, b/c it doesn't happen wit it off. I know for sure that it doesn't happen in Firefox 31 ESR for some reason, but it happened in Firefox 33, and now 34 and up it seems. It seems to me, something changed with HW acceleration after Firefox 31. It also happens randomly for me, but more frequently waking the computer after sleep. I got a new r9 290 this December, before I had a older Nvidia card 460 gtx and I never ran into anything like this, worked perfectly as far as Firefox is concerned. Using latest AMD drivers.
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