Kernels 3.16-rc4, 3.15.5, and 3.14.12 contain a patch which fixes some hangs caused by the new radeon DPM (dynamic power management) code:
drm/radeon/dpm: fix typo in vddci setup for eg/btc eg is Evergreen (HD5000 series) and btc is Barts, Turks, Caicos. A PPA of the 3.14.12 kernel is available at http://kernel.ubuntu.com /~kernel-ppa/mainline/ and instructions on how to install and uninstall it are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1302574 Title: computer randomly freezes with screen coruption (Radeon HD 5750, IOMMU enabled) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1302574/+subscriptions _______________________________________________ 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