Bug 685084 - [RV770] image corruption (horizontal lines) when scrolling in Firefox
Summary: [RV770] image corruption (horizontal lines) when scrolling in Firefox
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati
Version: 15
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Jérôme Glisse
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2011-03-15 09:19 UTC by Michal Schmidt
Modified: 2011-03-29 03:53 UTC (History)
5 users (show)

Fixed In Version: xorg-x11-drv-ati-6.14.0-7.20110316gitcdfc007ec.fc15
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-03-29 03:53:51 UTC

Attachments (Terms of Use)
dmesg (150.02 KB, text/plain)
2011-03-15 09:20 UTC, Michal Schmidt
no flags Details
Xorg.0.log (48.98 KB, text/plain)
2011-03-15 09:20 UTC, Michal Schmidt
no flags Details
screenshot (461.43 KB, image/png)
2011-03-15 09:25 UTC, Michal Schmidt
no flags Details
RADEON HD5670 has horizontal lines in firefox tabs (94.71 KB, image/png)
2011-03-15 14:50 UTC, Reartes Guillermo
no flags Details

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):

How reproducible:

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]

Comment 2 Michal Schmidt 2011-03-15 09:20:57 UTC
Created attachment 484406 [details]

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]

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

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.

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.

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