nvidia via nvidia-prime, no display on Ubuntu, Xubuntu, Lubuntu & probably Kubuntu

[Doug McMahon]

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)

[Doug McMahon (mc3man)]

nvidia driver install log

[Doug McMahon (mc3man)]

Xorg.0.log prior to nvidia driver install

[Doug McMahon (mc3man)]

lightdm.log prior to nvidia driver install

[Doug McMahon (mc3man)]

Xorg.0 .log after nvidia install

[Doug McMahon (mc3man)]

lightdm.log after nvidia install

[Doug McMahon (mc3man)]

An Xorg crash report is generated, not sure of value, goes to the Db anyway

[Doug McMahon (mc3man)]

from boot up with nvidia to black greeter, blind log in to black screen

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marcin Sągol (soee)]

Kubuntu 15.10 loading nvidia profile also fails. It jums back to intel profile or if somehow use nvidia, booting ends with black screen where sddm should be loaded.

[Marcin Sągol (soee)]

One more thing: if i use previous driver version (for exaple 355.06 from this ppa https://launchpad.net/~mamarley/+archive/ubuntu/nvidia) all works fine. The problem exists with latest drivers.

[Doug McMahon (mc3man)]

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

[Doug McMahon (mc3man)]

On 2 new 09/22 image installs -
Ubuntu-Gnome - install nvidia-352, reboot, works on nvidia fine
Ubuntu - install nvidia-352, reboot, no display (black) on unity-greeter, no display on log in (blind from greeter

[Doug McMahon (mc3man)]

Also fails to produce a display on Xubuntu & Lubuntu, both of which use lightdm

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Halász Tibor (tibor-halasz)]

Same as the other, the temporary solution is
CTRL+ALT+F1
sudo prime-select intel
reboot

When Intel is active it works.

[Alexander (sality)]

same problem. on intel works fine.