Just to note - On Ubuntu-gnome 15.10 install, same hardware have gotten nvidia via nvidia-prime to work. Initially on fresh install it did the same, ie. black greeter, black login. Downgrading those 2 xorg packages & a reboot allowed nvidia to work. Then upgraded xserver back & it still worked fine. Today there was a kernel & some other upgrades, after reboot nvidia again failed thru several boot up attempts. Downgraded initramfs-tools/bin, reboot & works again. Upgraded initramfs-tools/bin & continues to work. So - Makes no sense at all..
A fresh 15.10 Ubuntu install on same hardware today remains totally unable to use nvidia thru nvidia prime, xorg crash report on first attempted login is here, likely unremarkable & possibly worthless due to no various debug symbols - https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1497075 ** Attachment added: "Screenshot from 2015-09-17 21-46-27.png" https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1492864/+attachment/4467415/+files/Screenshot%20from%202015-09-17%2021-46-27.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1492864 Title: nvidia fails, likely from xserver-core Status in X.Org X server: New Status in nvidia-prime package in Ubuntu: Confirmed Bug description: Fresh install of 15.10, image of 09/06, only synaptic installed Hardware is i7-4700MQ CPU, Intel® Haswell Mobile Nvidia GT770m Initial bootup/ login is fine Installed nvidia-352, install went fine, will attach log Rebooted to a black greeter screen (heard sound Logged in blindly, black screen Attached logs seem fine Downgrading xserver-xorg-core to 1.17.1 & nvidia works fine on optimus machine via nvidia-prime ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: nvidia-prime 0.8.1 ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0 Uname: Linux 4.2.0-7-generic x86_64 ApportVersion: 2.18-0ubuntu9 Architecture: amd64 CurrentDesktop: Unity Date: Sun Sep 6 20:04:35 2015 InstallationDate: Installed on 2015-09-06 (0 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150906) SourcePackage: nvidia-prime UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1492864/+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
