Open Bug 1973150 Opened 1 day ago Updated 1 day ago

With Layer compositor, the fade-away tooltip on treeherder sometimes leaves a shadow behind

Categories

(Core :: Graphics: WebRender, defect)

defect

Tracking

()

Tracking Status
firefox-esr128 --- unaffected
firefox139 --- unaffected
firefox140 --- unaffected
firefox141 --- affected

People

(Reporter: mayankleoboy1, Assigned: sotaro)

References

(Blocks 2 open bugs, Regression)

Details

(Keywords: regression)

Attachments

(3 files)

Attached video bug.mp4

Enable layer compositor
Go to https://treeherder.mozilla.org/jobs?repo=try&author=reviewbot
Hover mouse on the text. That will create a black popup/tooltip. And if you move the mouse away, the tooltip/popup will fade away.
Now the trick is to move the mouse across the text with such a speed that the previous tooltip is fading away, while the new tooltip is fading in.
Keep on doing this.
At some point, the faded tooltip will leave a shadow behind.

I havent done a bisection, but the last change to layer compositor was in bug 1970784, so i am marking it as the regressor.

Attached file about:support
Blocks: 1945683, 1959009
Flags: needinfo?(sotaro.ikeda.g)

Set release status flags based on info from the regressing bug 1970784

Assignee: nobody → sotaro.ikeda.g
Flags: needinfo?(sotaro.ikeda.g)

Hmm, I could hardly reproduce the problem.

Maybe try with a revision that has a lot of line items like this: https://treeherder.mozilla.org/jobs?repo=try&revision=c277ea7c19c43324cf05b1545457365820fa3759

Attached video bug demo2.mp4
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