I've read that odd-numbered versions of Ubuntu (like 'Ubuntu 15.10' which you use) aren't recommended for common users. It was advised to use an even-numbered versions, like Ubuntu 16.04.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity-greeter in Ubuntu. https://bugs.launchpad.net/bugs/1661640 Title: upon login, shows corrupt graphics buffer until unity done loading Status in unity-greeter package in Ubuntu: New Bug description: when i login, the graphics appear to change modes to a higher resolution; the login screen becomes smaller and random images and noise show on the right and bottom few inches of the screen. when the desktop is done loading, the graphics work fine. i would expect to see a beautiful transition upon logging in. the garbage displayed make the OS look bad and can also reveal portions of previously running programs, which is bad for security. i am using an nvidia hybrid graphics card with the proprietary driver. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unity-greeter 16.04.2-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40 Uname: Linux 4.4.0-62-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: Unity Date: Fri Feb 3 09:59:02 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2016-03-22 (318 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: unity-greeter UpgradeStatus: Upgraded to xenial on 2016-04-25 (284 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1661640/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
