Closed Bug 1210411 Opened 7 years ago Closed 7 years ago
Large black/unrendered areas of webpages on pages that scroll more than 2 viewports in height
I've seen this now on multiple pages. I'm running Nightly 2015-10-01 on Windows 10, and didn't see it with 2015-09-31. Graphics Adapter Description Intel(R) HD Graphics Family Adapter Drivers igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32 Adapter RAM Unknown Asynchronous Pan/Zoom wheel input enabled Device ID 0x0a16 Direct2D Enabled true DirectWrite Enabled true (10.0.10547.0) Driver Date 8-31-2015 Driver Version 10.18.15.4281 GPU #2 Active false GPU Accelerated Windows 1/1 Direct3D 11 (OMTC) Subsys ID 221817aa Supports Hardware H264 Decoding Yes Vendor ID 0x8086 WebGL Renderer Google Inc. -- ANGLE (Intel(R) HD Graphics Family Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote true AzureCanvasBackend direct2d 1.1 AzureContentBackend direct2d 1.1 AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0
Quite possibly, yeah, but a regression window would be good since I don't think anything major APZ-related for windows landed between 09-31 and 10-01.
Used mozregression and narrowed it all the way down to https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=d51440cc7a2fd9615d7d46bc36d67353d01b534e&tochange=aa61d48eb6ae747a5a755fb6996669720124a0d9 which only shows bug 1208636.
I'll be on PTO for a week or so (almost right after I type this message!). Making the displayport bigger shouldn't have caused this unless there is an underlying APZ issue? This seems odd. If you can't think of anything :kats, feel free to backout bug 1208636. @Jared - Do you have a sample site that you can reproduce this with?
Flags: needinfo?(mchang) → needinfo?(jaws)
I can reproduce it with https://bugzilla.mozilla.org/show_bug.cgi?id=450322. I'm gonna back it out locally and see if that fixes it for me.
I'll be on PTO starting next Tuesday for a couple of weeks and I don't think I have the cycles to chase this down before then - so if the backout fixes it for you please go ahead and land it. Mason or I can track it down when we get back.
I've confirmed via local backout that the patch in bug 1208636 introduced this regression.
Backed out in https://hg.mozilla.org/integration/fx-team/rev/18960b8cb8e2 and reopened bug 1208636.
Status: NEW → RESOLVED
Closed: 7 years ago
Resolution: --- → FIXED
Whiteboard: [fixed via backout of bug 1208636]
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