Bug 685084

Summary: [RV770] image corruption (horizontal lines) when scrolling in Firefox
Product: [Fedora] Fedora Reporter: Michal Schmidt <mschmidt>
Component: xorg-x11-drv-atiAssignee: Jérôme Glisse <jglisse>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 15CC: airlied, dwmw2, jglisse, xgl-maint, yaneti
Target Milestone: ---Keywords: Triaged
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: xorg-x11-drv-ati-6.14.0-7.20110316gitcdfc007ec.fc15 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-03-29 03:53:51 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
dmesg
none
Xorg.0.log
none
screenshot
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RADEON HD5670 has horizontal lines in firefox tabs none

Description Michal Schmidt 2011-03-15 09:19:49 UTC 
Description of problem:
On some webpages (not all) scrolling in Firefox produces horizontal line artifacts. See the attached screenshot.
It is reproducible both in Gnome shell and in XFCE.
This is a regression in 6.14.0-6* compared to 6.14.0-5*.

Version-Release number of selected component (if applicable):
xorg-x11-drv-ati-6.14.0-6.20110315git4d3504970.fc15.x86_64
kernel-2.6.38-1.fc15.x86_64
xorg-x11-server-Xorg-1.10.0-3.fc15.x86_64
mesa-dri-drivers-7.10-0.29.fc15.x86_64

How reproducible:
always

Steps to Reproduce:
1. Go to http://www.svobodni.cz/ using Firefox
2. Drag the scrollbar down slowly.
  
Actual results:
image corruption as in the screenshot

Expected results:
no ugly horizontal lines over the webpage

Additional info:
Downgrading to xorg-x11-drv-ati-6.14.0-5.20110204gita27b5dbd9.fc15.x86_64 makes the bug go away.
Will attach dmesg and Xorg.0.log ...
Comment 1 Michal Schmidt 2011-03-15 09:20:28 UTC 
Created attachment 484405 [details]
dmesg
Comment 2 Michal Schmidt 2011-03-15 09:20:57 UTC 
Created attachment 484406 [details]
Xorg.0.log
Comment 3 Michal Schmidt 2011-03-15 09:22:56 UTC 
There are two video cards in this machine. I am using:
VGA compatible controller [0300]: ATI Technologies Inc RV770 [Radeon HD 4850] [1002:9442]
The other video card is not in use.
Comment 4 Michal Schmidt 2011-03-15 09:25:34 UTC 
Created attachment 484407 [details]
screenshot
Comment 5 Yanko Kaneti 2011-03-15 14:48:39 UTC 
Can confirm a similar looking regression on RS780 IGP
VGA compatible controller [0300]: ATI Technologies Inc Radeon HD 3200 Graphics [1002:9610]
Comment 6 Reartes Guillermo 2011-03-15 14:50:03 UTC 
Created attachment 485199 [details]
RADEON HD5670 has horizontal lines in firefox tabs

I also see the horizontal lines, but on the Firefox TABS:

ATI Technologies Inc Redwood [Radeon HD 5670] [1002:68d8]
See attached pic.

xorg-x11-drv-ati.x86_64  6.14.0-6.20110315git4d3504970.fc15 @updates-testing

Additional info:
[Bug 683825] Graphical corruption/artifact in KDE with ATI HD5670 (1002:68d8)
Comment 7 Dave Airlie 2011-03-15 23:38:24 UTC 
Michal,

can you get it at the default firefox zoom level (Ctrl+0) 

or does it only happen if you zoom in?
Comment 8 Fedora Update System 2011-03-16 00:48:54 UTC 
xorg-x11-drv-ati-6.14.0-7.20110316gitcdfc007ec.fc15 has been submitted as an update for Fedora 15.
https://admin.fedoraproject.org/updates/xorg-x11-drv-ati-6.14.0-7.20110316gitcdfc007ec.fc15
Comment 9 Michal Schmidt 2011-03-16 07:48:42 UTC 
Yes, I had it zoomed in a bit without realizing it. There's no corruption with the default zoom level.

6.14.0-7 fixes the bug. Thanks.
Comment 10 Fedora Update System 2011-03-29 03:53:41 UTC 
xorg-x11-drv-ati-6.14.0-7.20110316gitcdfc007ec.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.