STR: 1. Open https://bugzilla.mozilla.org/enter_bug.cgi?product=Core&component=Editor 2. Focus the CC field, and type in ":aryeh" without the quotes. 3. Wait shortly for the helper popup window to be open. Parts of the web page would suddenly get drawn in different spots. Alice, do you have access to a Linux machine which can reproduce this? It would be great if you can find a regression range for us if you do! :-) Here's the gfx section of my about:support: Graphics Adapter Description Tungsten Graphics, Inc -- Mesa DRI Intel(R) Sandybridge Server Vendor ID Tungsten Graphics, Inc Device ID Mesa DRI Intel(R) Sandybridge Server Driver Version 3.0 Mesa 8.0.2 WebGL Renderer Tungsten Graphics, Inc -- Mesa DRI Intel(R) Sandybridge Server -- 3.0 Mesa 8.0.2 GPU Accelerated Windows 0 AzureBackend skia
I can reproduce with HWA off. Regression window(m-c) Good: http://hg.mozilla.org/mozilla-central/rev/82b6c5885345 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120722190243 Bad: http://hg.mozilla.org/mozilla-central/rev/d78729026fb9 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120723063342 Regression window(m-i) Good: http://hg.mozilla.org/integration/mozilla-inbound/rev/9302468f64fa Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120722192842 Bad: http://hg.mozilla.org/integration/mozilla-inbound/rev/a5ee3b2e133a Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120722200242 Pushlog: http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=9302468f64fa&tochange=a5ee3b2e133a
I'm gonna say that the three patches from bug 539356 regressed this!
I can't reproduce this, but I do get parts of the page drawn wrong if I reload after opening a popup. Do you have any addons installed that might affect this?
(In reply to comment #3) > I can't reproduce this, but I do get parts of the page drawn wrong if I reload > after opening a popup. > > Do you have any addons installed that might affect this? I have Bugzilla Tweaks and BugzillaJS installed, but they both simply modify the DOM. It might help if you install them, but I don't believe they're at blame here. Alice could reproduce as well.
Created attachment 646430 [details] [diff] [review] Invalidate layers when transitioning out of flattening component alpha With those addons I get incorrect drawing when the page loads, I don't even need to touch the popup. This patch fixes all the issues I can find.