After trying many possible ways to solve my problem I finally found a way of making my ATI Radeon HD 4xxx series to work on my Dell Studio 1557 with Ubuntu 10.04.1 x64bit and also "silence" the fan that was loud and annoying:
1) I had the most resent updates available, installed 2) Downloaded the 2.6.34 mainline kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.34-lucid/ 3) Installed them, reboot. 4) Downloaded the official ATI driver from the official website 5) Run in terminal " sudo ./ati-driver-installer-10-9-x86.x86_64.run " 6) Choose "Build for detected OS Ubuntu/lucid" 7) Installed the generated packages except fglrx-dev*.deb 8) Run in the same terminal "sudo aticonfig --initial" 9) Reboot. Everything is OK, Compiz working, fan is silent... and I am happy.. My system : lspci | grep ATI 02:00.0 VGA compatible controller: ATI Technologies Inc M92 [Mobility Radeon HD 4500 Series] 02:00.1 Audio device: ATI Technologies Inc RV710/730 Release : Ubuntu 10.04.1 (lucid) amd64 Kernel : 2.6.34-020634-generic #020634 SMP -- [MASTER] package fglrx 2:8.723.1-0ubuntu4 failed to install/upgrade: Kernel fix for CVE-2010-3081 breaks fglrx https://bugs.launchpad.net/bugs/642518 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to linux-restricted-modules-2.6.24 in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp