After you enable the special effect for the ATI3400 series graphics card in Ubuntu9.10Karmic, you will feel a bit stuck. For example, you can feel a significant pause when switching the window in the taskbar. It is said that Ubuntu 9.04jaunty has the same problem. The specific solution is to upgrade the xorg-server1 through the ppa source. add to ppa source, "System"-"System Management"-"software source"-"other software"-"add" ppa: ubuntu-x-swat/x
After special effects are enabled for the ATI 3400 series graphics card in Ubuntu 9.10 Karmic, you may feel a bit stuck. For example, you may feel a significant pause when switching the window in the taskbar. It is said that Ubuntu 9.04 jaunty has the same problem.
The specific solution is to upgrade xorg-server through the ppa Source
1. Join the ppa source, "System"-"System Management"-"software source"-"other software"-"add"
Ppa: ubuntu-x-swat/xserver-no-backfill
2. Import key
Gpg-keyserver keyserver.ubuntu.com-recv-key 3B22AB97AF1CDFA9
Gpg-export-armor 3B22AB97AF1CDFA9 | sudo apt-key add-
3. Update source and upgrade
Sudo apt-get update & sudo apt-get upgrade
4. Modify xorg. conf
Sudo gedit/etc/X11/xorg. conf
Locate Section "Device" and add several lines under Identifier "Default Device.
Option "RenderAccel" "on"
Option "AccelMethod" "XAA"
Option "AGPMode" "4 ″
5. restart the system or log out and log on again.