Bug 44860

Summary: [Qt][S60] Scroll rendering issue with background images
Product: WebKit Reporter: Sreedhar Vaddi <sreedhar.vaddi>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED WONTFIX    
Severity: Critical CC: carol, neelkanth.nidgundi
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: S60 Hardware   
OS: Other   
Attachments:
Description Flags
background image
none
index.html file none

Sreedhar Vaddi
Reported 2010-08-30 02:32:39 PDT
I have a plain html page with background as image. While scrolling I am finding white split lines. I have attached the index.html and bg_landscape.jpg file.
Attachments
background image (15.83 KB, image/jpeg)
2010-08-30 02:33 PDT, Sreedhar Vaddi 		no flags
Details
index.html file (6.51 KB, text/html)
2010-08-30 02:34 PDT, Sreedhar Vaddi 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Sreedhar Vaddi
Comment 1 2010-08-30 02:33:27 PDT
Created attachment 65895 [details] background image
Sreedhar Vaddi
Comment 2 2010-08-30 02:34:06 PDT
Created attachment 65896 [details] index.html file
neelkanth
Comment 3 2010-09-30 23:36:26 PDT
QTWRT EM Team: Please update the latest status of this bug, as this is blocker for QTWRT.
Carol Szabo
Comment 4 2010-12-14 11:22:55 PST
This bug appears to be a Qt bug having to do with some native graphics systems reporting incorrect measurements for fonts. Once using -graphicssystem raster the bug could no longer be reproduced. Without this option QtWebkit has many problems as it relies on Qt which relies on the underlying graphics system to work correctly which is not always the case. For example QPixmaps with alphachannels can not be created on some X instalations if the raster graphics system is not used.
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