[Bug 442216] Re: Ultra slow flash performance in karmic beta1

[Fletch]

Here is how I solved the problem on my computer:

Edit or create a xorg.conf file under /etc/X11. (Note: in karmic a
xorg.conf file is not required as ubuntu now automatically detects and
choses the settings for your computer. So chances are there will be no
file there.)

Under your video device, enter the following:

        Option "MigrationHeuristic" "greedy"

If you are creating a fresh xorg.conf and are unsure of how to set it
up, then do something similar to the one that I have attached.

Basicaly, Karmic does not choose the optimal settings for certain video
cards (I run a radeon X850).  Setting the option "MigrationHeuristic" to
"greedy" or "smart" improves the performance. This issue has already
been logged at https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-
video-ati/+bug/330545.

I also had significant performance problems in Kubuntu with Kwin.
Changing the setting to greedy solved this problem as well.

** Attachment added: "xorg.conf"
   http://launchpadlibrarian.net/34843620/xorg.conf

-- 
Ultra slow flash performance in karmic beta1
https://bugs.launchpad.net/bugs/442216
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