Closed Bug 254769 Opened 20 years ago Closed 20 years ago

scrolling (vertical or horizontal) leaves horizontal lines with background colo(u)r

Categories

(Core Graveyard :: GFX: Gtk, defect)

x86
Linux
defect
Not set
normal

Tracking

(Not tracked)

RESOLVED INVALID

People

(Reporter: peter.kovar, Assigned: tor)

References

()

Details

Attachments

(1 file)

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; sk-SK; rv:1.8a3) Gecko/20040807
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; sk-SK; rv:1.8a3) Gecko/20040807

In the page http://home.snafu.de/tilman/mozilla/stomps.html or any page with
vertical size greater than size of screen, Mozilla leaves nasty one pixel wide
lines with background colo(u)r. It smells like integer rounding bug somewhere in
the gfx.

Reproducible: Always
Steps to Reproduce:
1. http://home.snafu.de/tilman/mozilla/stomps.html
2. scroll down with keyboard arrow key up, mouse wheel or vertical scroll bar


Actual Results:  
Single pixel wide horizontal lines left.

Expected Results:  
Clear repaint, of course.

about:buildconfig

Build platform
target
i686-pc-linux-gnu

Build tools
Compiler 	Version 	Compiler flags
ccache gcc-3.4.1 	gcc version 3.4.1 	-Wall -W -Wno-unused -Wpointer-arith
-Wcast-align -Wno-long-long -pedantic -march=i686 -mtune=pentium3 -msse
-mfpmath=sse -mmmx -O2 -pipe -fforce-addr -fomit-frame-pointer -funroll-loops
-frerun-cse-after-loop -frerun-loop-opt -falign-functions=4
-maccumulate-outgoing-args -ffast-math -fprefetch-loop-arrays -pthread -pipe
ccache c++-3.4.1 	gcc version 3.4.1 	-fno-rtti -fno-exceptions -Wall
-Wconversion -Wpointer-arith -Wcast-align -Woverloaded-virtual -Wsynth
-Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -Wno-long-long -pedantic
-march=i686 -mtune=pentium3 -msse -mfpmath=sse -mmmx -O2 -pipe -fforce-addr
-fomit-frame-pointer -funroll-loops -frerun-cse-after-loop -frerun-loop-opt
-falign-functions=4 -maccumulate-outgoing-args -ffast-math
-fprefetch-loop-arrays -fshort-wchar -pthread -pipe -I/usr/X11R6.7.0/include

Configure arguments
--prefix=/usr --enable-calendar --enable-md --enable-ldap --enable-svg
--enable-svg-renderer-cairo --enable-xft --with-system-jpeg --with-system-zlib
--with-system-png --with-system-mng --enable-xterm-updates --enable-xinerama
--enable-ctl --enable-jsd --enable-oji --enable-crypto
--enable-default-toolkit=gtk2 --with-extensions=all --enable-xpctools
--enable-reorder --enable-logging --enable-strip
Correction: even scroll down is affected. Maybe it's cross platform bug, maybe
only Cairo and/or GTK related.
Summary: scroll up leaves horizontal lines with background colo(u)r → vertical scroll leaves horizontal lines with background colo(u)r
Maybe dupe of Bug 201198, not sure, since Bug 201198 is about white lines. There
is also a example with black lines in it, but that was with white background.
Summary: vertical scroll leaves horizontal lines with background colo(u)r → scrolling (vertical or horizontal) leaves horizontal lines with background colo(u)r
I've noticed those horizontal lines also during progressive load and repaint of
SourceForge.net Logo sflogo.php.png at http://mplayerplug-in.sourceforge.net/ so
it's not only scroll but much more...
-> tor
Assignee: blizzard → tor
WFM - what resolution does your X server think it's running at?
"xdpyinfo | grep resolution"

X server pulled from X.org CVS +/- two weeks ago
Build Date: 25 July 2004
Server: The X.Org Foundation 60700000
Visual: 24-bit TrueColor (ID 0x23, Default)

xdpyinfo says
resolution:    75x75 dots per inch

However in current CVS i.e. 20040810 this weirdness disappeared. Eventualy I'll
try to experiment with higher resolutions.
From your description it sounds like a bug in x.org's server.
Closing as invalid.
Status: UNCONFIRMED → RESOLVED
Closed: 20 years ago
Resolution: --- → INVALID
Product: Core → Core Graveyard
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