1153863 - Incorrect painting when scrolling 'overflow: auto'

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Simon Sapin (:SimonSapin)]

Attachment: Screencast from 29-03-15 01:13:03.mkv

When scrolling something with 'overflow: auto' (not the entire page, that I’ve seen), A slice of 1px is sometimes repeated in the direction of scrolling and painted instead of the actual content.

See attached video. (Ignore the page refresh at the end, I accidentally hit CTRL+R when stopping the recording.) You’d need to be logged in to reproduce the page shown in the video, but I can also reproduce in https://github.com/servo/servo/#building-for-android-target

I’m using Firefox 37.0.1 stable on Archlinux x64 with Intel graphics hardware.

I could *not* reproduce in Nightly 40.0a1 (2015-04-13), with e10s either enabled or disabled, so this might have been fixed already.

Comment 1

[Simon Sapin (:SimonSapin)]

Attachment: Screencast from 29-03-15 01:13:03.webm

Re-uploading as webm, which plays in the browser.

Comment 2

[Gregory Pappas [:gregp]]

Simon, are you still experiencing this issue?

Comment 3

[Simon Sapin (:SimonSapin)]

No, i don’t remember seeing this in a long time. Given 8 years ago was before WebRender i think this is safe to close now.