openSuse 11.3 64 bit on Acer Aspire One 721 - slow graphics performance

Hi everybody,

i have installed openSuse 11.3 64bit with Gnome on an acer aspire one 721 netbook. The installation was a little bit tricky, because the system freezes after first reboot. I had to reboot the system in failsafe mode to complete the installation.

After that, I found out that I have to set the nomodeset param to start the system properly, but that results in a very slow graphics performance.

I have also booted both openSuse Live-CD’s with KDE and Gnome. While the KDE Live CD freezes during the startup of the desktop manager, the Gnome Live CD started up with a really good performance of the graphics power (e.g. desktop effects are working).

Could anyone explain me how to configure my 64bit system that it works like the Gnome Live System?

Thanks in advance


  • AMD Athlon II Neo K125 Single-Core (1,7 GHz)
  • ATI Radeon Mobility HD4225
  • 11,6 Zoll CrystalBrite LED Display
  • 2 GB DDR3 RAM
  • 250 GB HDD

Did you installed the fglrx-driver by ATI?

no, i didn’t have installed that driver.

Then i would advice you to install the fglrx driver for your ati.

I will try to install that driver, but I think I should read that stuff first: openSUSE Graphic Card Practical Theory Guide for Users :wink:

Thanks for your quick reply


ok, I have edited the configuration as descriped here: ATI Graphic Hardware. I created the /etc/X11/xorg.conf and changed the driver from radeonHD to radeon.

Graphics performance is much better now, but enabling desktop effects results in a crash of the compizConf Manger.

Ok Tom, it is good that you have a better graphic performance. But if you have installed the FGLRX driver from the ATI repository now you have to change the driver from radeon to fglrx in your xorg.conf. Alternative you can run aticonfig -initial.

Hi Pilgervater,

I’ve installed the latest fglrx driver from the ATI repository. Btw, this was very easy with a little script I found here(german; thx to Sebastian, who created that script). The fglrx driver works as fine as the radeon driver (just my first impression) but compizConf Manger crashes anyway.

After that, I tought “lets create a second user and see what happens” …and voila… desktop effects are working for that user. It seems that some kind of switch in one of the config files in first users home directory avoid enabling desktop effects. Do you have any idea where I have to search for that? I just want to know :slight_smile:

Thank you