[Openchrome-users] Troubles with greedy MigrationHeuristic and firefox

[Rikz]

Firefox doesn't display some pages (mostly with heavy graphics)
correctly when I have
 Option "MigrationHeuristic" "greedy"
in my /etc/X11/xorg.conf.
I've attached the screenshot of the incorrect displayed
http://google.com. With that string commented out in xorg.conf this
page is displayed correctly. In the Google example, when the page is
just loaded, it looks ok. But when I switch the focus to another
window or switch to another desktop it breaks the firefox rendering.
The other less annoying bug with greedy MigrationHeuristic is that
when GNOME is started, the icons on the bottom of the splash screen
are not displayed. Maybe there are some other cases when this options
makes problem for me, I don't know yet.

I'm using xorg-server-1.4 from Gentoo Linux, DRM modules and libdrm
are from Git, openChrome driver is today's SVN version. Here's a part
of xorg.conf about video adapter:

Section "Device"

    Identifier	"VIA Unichrome Pro"
    Driver			"openchrome"

    Option	"AccelMethod"			"EXA"
   	Option	"ExaScratchSize"	"8192"
    Option	"MaxDRIMem"				"16384"
    Option	"MigrationHeuristic"	"greedy"

		Option	"ActiveDevice"		"LCD"
		Option	"EnableAGPDMA"		"true"
		Option	"NoXVDMA"					"true"
		Option	"VBEModes"				"true"
		Option	"VBESaveRestore"	"true"
		Option	"DisableIRQ"			"true"
    BusID		"PCI:1:0:0"

EndSection

My card is Unichrome Pro (VIA VN800) with 64Mb of memory allocated in
BIOS. My Xorg.log is attached. The problem line in xorg.conf was found
by commenting them all out and then uncommenting one by one.
Everything works fine when MigrationHeuristic is not greedy, however
'man openchrome' says that this is the best option for now.

Should I provide any addtional info? Can anyone confirm this on other machine?

Thanks for the help!

-- 
-wbr,
Andrey Melentyev
andrey.melentyev at gmail.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: google_incorrect.jpg
Type: image/jpeg
Size: 17696 bytes
Desc: not available
Url : http://wiki.openchrome.org/pipermail/openchrome-users/attachments/20071022/04ae105b/google_incorrect-0001.jpg
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Xorg.0.log.bz2
Type: application/x-bzip2
Size: 8990 bytes
Desc: not available
Url : http://wiki.openchrome.org/pipermail/openchrome-users/attachments/20071022/04ae105b/Xorg.0.log-0001.bin