Bug 71317 - Horizontal scrolling sometimes scrolls half an image
Summary: Horizontal scrolling sometimes scrolls half an image
Status: UNCONFIRMED
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: 528+ (Nightly build)
Hardware: Mac (Intel) OS X 10.6
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-11-01 14:00 PDT by Mark Dalrymple
Modified: 2011-11-01 22:45 PDT (History)
3 users (show)

See Also:

Attachments
Screen recording showing the above happenings (5.04 MB, video/quicktime)
2011-11-01 14:00 PDT, Mark Dalrymple 		no flags Details
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Description Mark Dalrymple 2011-11-01 14:00:43 PDT 
Created attachment 113210 [details]
Screen recording showing the above happenings

The Chromium folk asked me to re-post this here.  It's their bugID 102368 : http://code.google.com/p/chromium/issues/detail?id=102368

What steps will reproduce the problem?
1. Visit Google Reader
2. Have "Comics Curmudgeon" in your feed
3. Scroll so a comic is around the middle of the screen
4. two-finger-scroll horizotnally

What is the expected result?

It scrolls in one piece

What happens instead?

Scrolls piecemeal.


Please provide any additional information below. Attach a screenshot if
possible.

Attached a screen movie showing what I'm seeing.
Comment 1 Alexey Proskuryakov 2011-11-01 21:37:35 PDT 
Per comments in the chromium bug this also happens in WebKit nightlies using Safari. Quite an unusual effect.
Comment 2 Simon Fraser (smfr) 2011-11-01 22:45:28 PDT 
Probably compositing/tiled layer stuff.