--- Begin Message ---
- To: Debian Bug Tracking System <submit@bugs.debian.org>
- Subject: konqueror: pages with certain transparent GIF images as background are displayed very slowly
- From: Jukka Suomela <debian-reportbug@sammal.pp.fi>
- Date: Sat, 14 Jan 2006 21:19:25 +0200
- Message-id: <20060114191925.4318.62053.reportbug@js-1.kpnqwest.fi>
Package: konqueror
Version: 4:3.5.0-4
Severity: normal
Hi,
It seems that web pages with certain transparent GIF images as the
background image are displayed very slowly.
Here is a simple example of a page where this problem occurs:
http://www.cs.helsinki.fi/u/josuomel/tmp/bg/
Such GIF images are actually used on some commercial web sites and the
web sites of some organisations. It is most likely accidental; someone
has edited a GIF and transparency was accidentally left on. The
problem seems to occur even if there are no actual transparent pixels
in the image at all.
In addition to being just annoying, slow rendering of the page causes
some other problems. For some reason, X generates erroneous repeated
keyboard events in this particular case. Here are a couple of
practical examples:
A. Konqueror (with a problematic web page) is running on virtual
desktop 2, and the virtual desktop 3 is currently active. I hit a
shortcut key for switching one virtual desktop to left. Desktop 2 is
displayed. X starts drawing the konqueror window, very slowly. For
some reason, an extra keystroke event is generated, and X switches to
virtual desktop 1.
B. I have 3 tabs, the problematic page is displayed in tab 2, and tab
3 is active. I close the tab 3 by hitting ctrl+w. Tab 3 is closed, tab
2 is displayed, and X starts drawing the page, very slowly. Again, an
extra keystroke event is generated, and tab 2 is closed as well.
Other web browser have no difficulties at all with such web pages.
Best regards,
Jukka Suomela
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/dash
Kernel: Linux 2.6.15-1-686
Locale: LANG=fi_FI, LC_CTYPE=fi_FI (charmap=ISO-8859-1)
Versions of packages konqueror depends on:
ii kcontrol 4:3.5.0-4 control center for KDE
ii kdebase-kio-plugins 4:3.5.0-4 core I/O slaves for KDE
ii kdelibs4c2a 4:3.5.0-3 core libraries for all KDE applica
ii kdesktop 4:3.5.0-4 miscellaneous binaries and files f
ii kfind 4:3.5.0-4 file-find utility for KDE
ii libacl1 2.2.34-1 Access control list shared library
ii libart-2.0-2 2.3.17-1 Library of functions for 2D graphi
ii libattr1 2.4.25-1 Extended attribute shared library
ii libaudio2 1.7-3 The Network Audio System (NAS). (s
ii libc6 2.3.5-11 GNU C Library: Shared libraries an
ii libfontconfig1 2.3.2-1.1 generic font configuration library
ii libfreetype6 2.1.10-1 FreeType 2 font engine, shared lib
ii libgamin0 [libfam0] 0.1.7-3 Client library for the gamin file
ii libgcc1 1:4.0.2-6 GCC support library
ii libice6 6.9.0.dfsg.1-3 Inter-Client Exchange library
ii libidn11 0.5.18-1 GNU libidn library, implementation
ii libjpeg62 6b-11 The Independent JPEG Group's JPEG
ii libkonq4 4:3.5.0-4 core libraries for Konqueror
ii libpng12-0 1.2.8rel-5 PNG library - runtime
ii libqt3-mt 3:3.3.5-3 Qt GUI Library (Threaded runtime v
ii libsm6 6.9.0.dfsg.1-3 X Window System Session Management
ii libstdc++6 4.0.2-6 The GNU Standard C++ Library v3
ii libx11-6 6.9.0.dfsg.1-3 X Window System protocol client li
ii libxcursor1 1.1.3-1 X cursor management library
ii libxext6 6.9.0.dfsg.1-3 X Window System miscellaneous exte
ii libxft2 2.1.7-1 FreeType-based font drawing librar
ii libxi6 6.9.0.dfsg.1-3 X Window System Input extension li
ii libxinerama1 6.9.0.dfsg.1-3 X Window System multi-head display
ii libxrandr2 6.9.0.dfsg.1-3 X Window System Resize, Rotate and
ii libxrender1 1:0.9.0.2-1 X Rendering Extension client libra
ii libxt6 6.9.0.dfsg.1-3 X Toolkit Intrinsics
ii zlib1g 1:1.2.3-9 compression library - runtime
konqueror recommends no packages.
-- no debconf information
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