[Webkit-unassigned] [Bug 36179] New: Webkit transparency causes screen distortions and flickering

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=36179

           Summary: Webkit transparency causes screen distortions and
                    flickering
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P3
         Component: WebKit Qt
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: a_tabula_rasa at yahoo.com


Created an attachment (id=50817)
 --> (https://bugs.webkit.org/attachment.cgi?id=50817)
This is the popup on windows. It should appear this way on Linux too.

PLATFORMS

This mainly affects Linux, but the issue is also there in Windows. I am running
QT 4.6.2

DESCRIPTION

On click, a transparent, frameless webkit window will popup covering the screen
and draw a box at the location of the click (functions much like a context
menu). In Linux, this causes screen distortions (see screenshot). In Windows it
largely works, but there is a flicker between every click where if you click in
two separate places the box will show in the previous place it was for a
second. This should not happen because every time the box leaves the screen it
is made invisible via javascript.

PROBLEM SUMMARY

Linux: Screen distortion; Windows: Flicker

TESTED SETUPS

I have tested it on two windows 7 installs and multiple linux installs and so
have other people. Every Linux install has compositing enabled and is able to
run compizfusion, so it is not an issue with graphic drivers or the sort.

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