I have a Dell Inspiron 5448 with hybrid graphics: Intel HD 5500u (i7, integrated) and a AMD R7 M265 (dedicated). I have this same bug. From a fresh installation of Ubuntu 14.04.2, tried to install:
1.- fglrx-updates from Additional Drivers. Bug appeared and flaky graphics with both cards. 2.- purged/removed fglrx-updates and installed fglrx from Additional Drivers. Bug persisted and flaky graphics still. 3.- purged/removed fglrx and downloaded the drivers directly from the AMD site (amd-driver-installer-14.501.1003-x86.x86_64). Installed and the bug persisted but it seems that the graphics are more stable now. (no repeated text and no overheating). The bug appears specifically when I switch to the Intel integrated graphics and logout. This doesn't happen when I logout with the AMD graphics. The bug is also described here https://community.amd.com/message/1303774 . I get the black screen and the message "this system is running in low-graphics mode" (sometimes with cursor, sometimes without). Whenever I try to logout though, I get the following message (see picture). No matter how many times I restart and my system is already updated. The only way to avoid the black screen is to never logout when using the integrated Intel card. ** Attachment added: "Screenshot from 2015-05-23 02:43:39.png" https://bugs.launchpad.net/ubuntu/+source/fglrx-installer-updates/+bug/1310071/+attachment/4402788/+files/Screenshot%20from%202015-05-23%2002%3A43%3A39.png -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to fglrx-installer-updates in Ubuntu. https://bugs.launchpad.net/bugs/1310071 Title: Low graphics mode on logout To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer-updates/+bug/1310071/+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