desktop-packages team mailing list archive

[Alberto Milone <alberto.milone@xxxxxxxxxxxxx>]

On 20-10-15 22:34:49, Doug McMahon wrote:
> A "regression in the intel driver" doesn't seem to explain why this was not an issue in a gnome session, nor to the fact that  -
> xset dpms force off
> xset dpms force on
> returned display  both in greeter & session
> (and nvidia driver loaded & worked fine, with or without a visible display.
>
> you  'fixed' the issue but maybe not for the correct reason

I didn't "fix" the issue, I only switched to the modesetting driver as a
workaround. You can still use intel with sna or uxa if you prefer (by
passing either "gpumanager_sna" or "gpumanager_sna" on boot).

I am not sure about the gnome session.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1507676

Title:
  Nvidia-Prime not switching from intel to nvidia leading to a black
  screen

Status in ubuntu-drivers-common package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-intel package in Ubuntu:
  In Progress

Bug description:
  STEPS:
  1. Install 15.10 on a laptop that supports optimus nvidia/intel hybrid graphics
  2. Install nvidia and nvidia-prime
  3. Open nvidia settings
  4. Switch to nvidia
  5. Log out
  6. Hear the login drums

  EXPECTED:
  I expect to see the lightdm login page

  ACTUAL:
  You are presented with a black page

  TEMP WORKAROUND:
  1. Tap ctrl-alt-f1
  2. login
  3. run sudo prime-select intel
  4. run sudo service lightdm restart
  5. System is back running on the intel stack alone.

To manage notifications about this bug go to:
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