Bug 667124

Summary: artifacts visible on scroll
Product: [Fedora] Fedora Reporter: Pádraig Brady <p>
Component: xorg-x11-drv-intelAssignee: Adam Jackson <ajax>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 14CC: ajax, gecko-bugs-nobody, stransky, xgl-maint
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2011-01-07 12:47:05 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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See the area enclosed in red none

Description Pádraig Brady 2011-01-04 14:37:36 UTC 
See the attached screenshot taken with:
import -display :0.0 -window root ff-artifacts.png

The area circled in red has artifacts due to the overlying terminal window.
They appear after scrolling the firefox content.
This happens with general.smoothScroll on or off.

$ rpm -q xorg-x11-drv-intel xorg-x11-server-Xorg kernel firefox
xorg-x11-drv-intel-2.12.0-6.fc14.1.i686
xorg-x11-server-Xorg-1.9.3-3.fc14.i686
kernel-2.6.35.10-72.fc14.i686
firefox-3.6.13-1.fc14.i686
Comment 1 Pádraig Brady 2011-01-04 14:41:28 UTC 
Created attachment 471679 [details]
See the area enclosed in red
Comment 2 Pádraig Brady 2011-01-04 14:45:14 UTC 
I should also add:

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)

Also I don't see the issue in other apps,
but I do see flickering in the problematic
area in other apps, but they do always draw
in a consistent state, when you stop scrolling.

Also it doesn't happen immediately, but may
take 10-20s of scrolling in firefox to show the issue
Comment 3 Martin Stransky 2011-01-07 12:46:46 UTC 
This one is a firefox bug fixed in rawhide.
Comment 4 Pádraig Brady 2011-01-07 16:28:30 UTC 
Cool thanks.
Will it be backported. It's a minor issue so I guess not.
Do you have a pointer to the bug or patch for the issue?
Comment 5 Martin Stransky 2011-01-10 08:51:36 UTC 
It's fixed by new layer engine in ff4 and it's not going to be backported to 3.6 line.