Open Bug 763831 Opened 12 years ago Updated 2 years ago

Scroll amount is very small. And Scroll amount is random (like hiccups)with mouse wheel if move mouse pointer up/down and rotate wheel at same time

Categories

(Core :: Web Painting, defect)

Product:
Core
Component:
Web Painting
Version:
13 Branch
Platform:
x86
Windows 7
Type:
defect

Tracking

()

People

(Reporter: alice0775, Unassigned)

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(1 file)

Recording of scroll-wheel stutter and delay in Thunderbird
(deleted), video/quicktime
Details
Build Identifier: http://hg.mozilla.org/releases/mozilla-release/rev/2b643ea8edf9 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20100101 Firefox/13.0 ID:20120601045813 I notice a problem when I test Bug 763504. Steps to Reproduce: 1. Create clean profile 2. Open http://docs.sencha.com/ext-js/4-1/extjs-build/examples/grid/array-grid.html 3. Try to scroll the table with mouse wheel if move mouse pointer up/down and rotate wheel at same time 4. Repeat step3 Actual Results: Scroll amount is very small. Scroll amount is random (like hiccups)with mouse wheel if move mouse pointer up/down and rotate wheel at same time Expected Results: Scroll should be performed as same as other place. And Scroll amount should be constant. not like hiccups Regression window: Good: http://hg.mozilla.org/mozilla-central/rev/047c8ba7d2e4 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0a1) Gecko/20120115 Firefox/12.0a1 ID:20120115112312 Bad: http://hg.mozilla.org/mozilla-central/rev/a895ecb782e1 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0a1) Gecko/20120116 Firefox/12.0a1 ID:20120116022308 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=047c8ba7d2e4&tochange=a895ecb782e1 Triggered by: f7c8c8ee3fad Jared Wein — Bug 198964 - Enable smooth scrolling by default. r=gavin However, this problem existed in earlier version if smooth scroll enabled.
Summary: ScSroll amount is very small. And Scroll amount is random (like hiccups)with mouse wheel if move mouse pointer up/down and rotate wheel at same time → Scroll amount is very small. And Scroll amount is random (like hiccups)with mouse wheel if move mouse pointer up/down and rotate wheel at same time
How do I get rid of the smooth scroll?
Go to the "Options" => "Advanced tab" => "General tab" => and disable "Use smooth scrolling"
Component: Layout: View Rendering → Layout: Web Painting

This sounds very much similar to my problem. MacBook Pro 16; OS X 10.15.7, Thunderbird 78.11.0 (64-bit). Logitech M535 wireless mouse via Bluetooth (next to laptop).

Left hand side window, list of all mailboxes, etc. If you position mouse pointer in there and use the scroll wheel, there is a (relatively) long delay instead of being close to instantaneous. It seems as if there is some other "activity" going on so the action lags terribly. The action of moving down the list "stutters" as it goes ("move, move, move"). Like this bug's original mention, a single wheel turn can move an entire window's worth (after that lag delay and the stutter) or maybe just a couple of lines. Totally unpredictable and unusable due to the bad lag and delay in action.
Not necessary to move mouse pointer at all. As I enter this note, when I scroll-wheel this web page (Firefox at Bugzilla site) it scrolls smoothly and fast, just like one would expect it to do. Thunderbird does not scroll-wheel smoothly at all.

This recording shows the delays and stutter of the mailbox list when using the scroll-wheel.

Severity: normal → S3
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