Snapping issue with scroll anchoring when resizing the window
Categories
(Core :: Graphics: WebRender, defect, P3)
Tracking
()
Tracking | Status | |
---|---|---|
firefox-esr60 | --- | unaffected |
firefox-esr68 | --- | unaffected |
firefox68 | --- | unaffected |
firefox69 | --- | wontfix |
firefox70 | --- | fixed |
People
(Reporter: jan, Assigned: gw)
References
(Blocks 1 open bug, Regression, )
Details
(Keywords: correctness, nightly-community, regression)
Attachments
(3 files)
Win10/GTX1060, 2560x1440
This is the remaining part of bug 1554861.
STR: Scroll to the bottom. Resize window. Sometimes there is a line at the top that disappears when releasing the mouse. It seems this line is actually the page background.
Does not happen
- without WebRender.
- with WebRender and layout.css.scroll-anchoring.enabled;false.
- [UPDATE] with WebRender and gfx.webrender.picture-caching;false. [/UPDATE]
Screencast:
mozregression --launch 2019-07-15 --pref gfx.webrender.all:true -a https://trac.edgewall.org/ticket/10002
Reporter | ||
Comment 2•5 years ago
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mozregression --good 2019-06-20 --bad 2019-07-15 --pref gfx.webrender.all:true -a https://trac.edgewall.org/ticket/10002
9:34.72 INFO: Last good revision: 021c05e47e6f4932a63fc1eeabc3c965fae6e882
9:34.72 INFO: First bad revision: c396b50af035b2205a3bc32190e105c97705c497
9:34.72 INFO: Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=021c05e47e6f4932a63fc1eeabc3c965fae6e882&tochange=c396b50af035b2205a3bc32190e105c97705c497
c396b50af035b2205a3bc32190e105c97705c497 Glenn Watson — Bug 1560853 - Fix picture cache tiles with fractional origins. r=kvark
Reporter | ||
Comment 3•5 years ago
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Before it was fine. Could it have caused bug 1541072 comment 19 and bug 1565473 comment 3 as well?
Updated•5 years ago
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Reporter | ||
Comment 4•5 years ago
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Clicked unaffected by accident. Confirmed, 69.0b4 is affected.
Assignee | ||
Comment 5•5 years ago
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This may be fixed by https://bugzilla.mozilla.org/show_bug.cgi?id=1566712.
Reporter | ||
Comment 6•5 years ago
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With try build from bug 1566712 comment 2. I can't reproduce the exact problem from comment 0. But at a different scroll position I am still able to reproduce something (similar to bug 1554861 and this bug, but different STR). Would a WR binary recording help?
Reporter | ||
Comment 7•5 years ago
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Testcase from bug 1566517 has a similar problem:
At 15s and 18s text is cut off at the bottom.
Also focus on the first line of text: Sometimes it is cut off by some pixels too. (for example at 3s)
Screencast (250% zoom): mozregression --repo try --launch c37fe6296ec248161e57710c4dffcac65451b5ff --pref gfx.webrender.all:true gfx.webrender.debug.picture-caching:true -a https://bugzilla.mozilla.org/attachment.cgi?id=9078458
Assignee | ||
Comment 8•5 years ago
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Should we mark this fixed and open a new bug for the above issue? Or are they similar enough to keep in this bug?
Assignee | ||
Comment 9•5 years ago
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I can't reproduce the original bug report (which makes sense, we're fairly confident it was fixed by https://bugzilla.mozilla.org/show_bug.cgi?id=1566712).
With the follow up screen recordings, I was unable to reproduce the issue in https://bugzilla.mozilla.org/show_bug.cgi?id=1566178#c6.
I was able to reproduce the issue in https://bugzilla.mozilla.org/show_bug.cgi?id=1566178#c7 at the 250% zoom level.
I was also able to reproduce this in both beta and release builds, and also with WR disabled and D3D11 Advanced Layers enabled (although it seemed less repeatable / common in those other configurations).
If that's the case, it probably doesn't need to be a blocker for 69.
Darkspirit, any chance you could double check my findings above to confirm?
Updated•5 years ago
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Updated•5 years ago
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Updated•5 years ago
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Updated•5 years ago
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Assignee | ||
Updated•5 years ago
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Comment 10•5 years ago
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Marking as FIXED. If any issues remain please file a new bug.
Updated•5 years ago
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Assignee | ||
Updated•5 years ago
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Description
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