Closed Bug 661518 Opened 11 years ago Closed 10 years ago

about:home page is not repainted correctly when it comes back in focus


(Core :: Graphics, defect, P2)

7 Branch



Tracking Status
firefox7 --- fixed
firefox8 --- fixed
fennec 7+ ---


(Reporter: xti, Assigned: jrmuizel)



(Keywords: regression, verified-aurora, verified-beta)


(3 files)

Attached image screenshot
Build id : Mozilla/5.0 (Android;Linux armv7l;rv:7.0a1)Gecko/201100601
Firefox/7.0a1 Fennec/7.0a1
Device: LG Optimus 2x
OS: Android 2.2

Steps to reproduce:
1. Open Fennec App
2. Go to about:home
3. Open any webpage in a new tab
4. Pan right for tabs panel
5. Tap on about:home tab
6. Pan left to hide tabs panel

Expected result:
about:home page is repainted correctly .

Actual result:
After step 6, for several seconds some areas of about:home page are semi transparent. Please see the attached screenshot.
Duplicate of this bug: 661709
I've noticed the same result if at step 2, you go to about:testharness
Attached image Screenshot 2
Priority: -- → P2
This issue doesn't occur on:
Build id : Mozilla/5.0 (Android;Linux armv7l;rv:7.0a1)Gecko/20110527
Firefox/7.0a1 Fennec/7.0a1

but it occurs on:
Build id : Mozilla/5.0 (Android;Linux armv7l;rv:7.0a1)Gecko/20110528
Firefox/7.0a1 Fennec/7.0a1

Possible range:
Regression from the Cairo update?
(In reply to comment #6)
> Regression from the Cairo update?

That was my guess too
The following change set is good

The following change set is bad

So the Cairo update is the problem.
Component: General → Graphics
Product: Fennec → Core
QA Contact: general → thebes
Version: Trunk → 7 Branch
tracking-fennec: --- → ?
jmuizelaar, do you know about this?
tracking-fennec: ? → 7+
Reproducable by simply panning around about:home
Assignee: nobody → jmuizelaar
Keywords: regression
I feel like bug 665510 is related or exactly the same issue here
not tracking for 7 at this point, depending on the fix we may uplift
tracking-fennec: 7+ → 8+
Depends on: 678505
Can folks reproduce this reliably? I've seen it a bit, but nothing reliable.
(In reply to Jeff Muizelaar [:jrmuizel] from comment #13)
> Can folks reproduce this reliably? I've seen it a bit, but nothing reliable.

Really all you need to do is pan around, (reproducible in Nightly 08/12)
I can also reproduce this by panning around about:home.
Attached image AMO screenshot
When I type something in the AMO search field, a black dash is displayed on the bottom of the input field . I'm able to reproduce it on the latest Nightly build. Is it related to this bug?

Build id : Mozilla/5.0 (Android;Linux armv7l;rv:8.0a1)Gecko/20110815
Firefox/8.0a1 Fennec/8.0a1
Device: HTC Desire Z
OS: Android 2.3.3
It looks like the patch on bug 668921 might fix this.
tracking-fennec: 8+ → 7+
Can anyone still reproduce this since bug 668921 landed?
Appears that the patch for bug 668921 fixed this. Panned around about:home for a few minutes without seeing any painting issue. Tested Aurora and the issue appeared after a short amount of panning.
Closed: 10 years ago
Resolution: --- → FIXED
Verified fixed on: Mozilla /5.0 (Android;Linux armv7l;rv:7.0) Gecko/20110824 Firefox/9.0a1 Fennec/7.0
Device: LG Optimus 2X
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