It's a well known fact that ATI drivers and linux don't mix well, I also doubt that you will be able to run doom3 at any reasonable performance at an 9100.
My best advice is to get an geforce graphics card (6600 or better) see: https://bluestacks.vip/ , https://kodi.software/ & https://luckypatcher.pro/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1139636 Title: fglrx drivers freeze Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer-updates/+bug/1139636/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs