First window paint draws the border on Windows 7

NEW
Unassigned

Status

()

defect
P3
normal
2 years ago
2 years ago

People

(Reporter: adrian_sv, Unassigned)

Tracking

({regression, regressionwindow-wanted})

56 Branch
x86_64
Windows 7
Points:
---

Firefox Tracking Flags

(firefox55 unaffected, firefox56 fix-optional, firefox57 fix-optional)

Details

(Whiteboard: [gfx-noted])

[Environment:]
Windows 7 x64 - Version 57.0a1 20170912220343

[Steps:]
1. Open a screen recorder.
2. Open Firefox.
3. Analyze the Firefox start-up.

[Actual Result:]
See https://www.youtube.com/watch?v=Xur9fq47p7s (Firefox window border is first painted)

[Expected Result:]
The Firefox window should be painted directly without any transition, though I'm not sure what's causing the border to be drawn first for Win7. 

[Note:]
This scenario is particular to Win7. I haven't seen this in Linux/Win10, Win8.1 cases.
Reporter

Comment 1

2 years ago
Windows 7 x64
FF 55.03 20170824053622  - not reproducible
FF 56.0b11 20170911193316 - reproducible
therefore concluding it is not a regression introduced by bug 1362103;

updating flags accordingly.
Whiteboard: [photon-performance][triage]
Reporter

Updated

2 years ago
No longer blocks: 1362103
Component: General → Graphics
Product: Firefox → Core
Version: Trunk → 56 Branch
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