Video card: M22 [Mobility Radeon X300]
Version of the kernel: 2.6.24-19-generic
Version of xserver-xorg-video-ati: 1:6.8.0-1
Version of firefox-3.0: 3.0+nobinonly-0ubuntu0.8.04.1
Version of linux-restricted-modules-2,6.24-19-generic: 2.6.24.13-19.44
I have the same problem as the one kostas reports.
I tried to browse the same web page using both radeon driver and fglrx driver.
The attached image shows the result.
The upper one was captured when radeon driver was used,
while the lower one was when fglrx driver was activated.
The attached image was created by the following procedure.
1) Configure /etc/xorg.conf to use radeon driver, with "Device" section like
Section "Device"
Identifier "Configured Video Device"
Driver "radeon"
Option "DRI" "on"
Option "EnablePageFlip" "on"
Option "AccelMethod" "EXA"
EndSection
2) Reboot the system, access the web page by firefox3.
3) After scrolling down and up, capture the window.
(Scrolling corrupted the background of the page)
4) Configure /etc/xorg.conf to use fglrx driver, with "Device" section like
Section "Device"
Identifier "Configured Video Device"
Driver "fglrx"
EndSection
5) Repeat 2 and 3.
6) Merge the two screen shots by GIMP.
Usually I use radeon driver because I want to use XRandR to
dynamically configure the video outputs.
I hope the bug will be fixed soon.
Thanks.
** Attachment added: "radeon_vs_fglrx.png"
http://launchpadlibrarian.net/15863926/radeon_vs_fglrx.png
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firefox 3 displays incorrectly
https://bugs.launchpad.net/bugs/198263
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