** Changed in: nvidia-prime (Ubuntu) Importance: Undecided => High -- 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/1620170
Title: wake from suspend fails when using discrete videocard on hybrid system Status in nvidia-prime package in Ubuntu: Confirmed Bug description: My laptop (ASUS K501UW-AB78) fails to resume from suspend when using Nvidia driver and Nvidia videocard is active. The problem does not arise when I switch to built-in video using nvidia prime or when using nouveau driver. Since this appears to only be relevant for hybrid systems, I file the bug under nvidia-prime; please move as appropriate. what I expect to happen: when system is in suspend and I open laptop lid or press any button, the laptop resumes and brings up the lock screen. what actually happens: when system is in suspend and I open laptop lid or press any button, the laptop awakens (power and wifi LEDs turn on); the screen gets backlit but remains black. I cannot switch to terminal session via Ctrl+Alt+F1. I am unable do anything blindly (for example, type in the password and try to turn off the laptop via keyboard combinations). to replicate the problem: install ubuntu 16.04, install nvidia driver via "additional drivers" settings dialog. Open nvidia-settings, open PRIME tab, switch to NVIDIA (performance mode), log out, log in, suspend the pc, press any button. Tested on: Ubuntu Mate 16.04.1 LTS x64 and Linux Mint 18 Cinnamon x64; in both cases kernel 4.4. Driver version: 361.42, nvidia-prime v0.82. I tried to manually install 367.44 driver, but both systems failed to load with that one (unlike my desktop). Hardware: Nvidia GTX 960M and Intel HD 520 (in intel i7 6500u cpu) videocards. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: nvidia-prime 0.8.2 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: MATE Date: Sun Sep 4 21:52:32 2016 InstallationDate: Installed on 2016-09-05 (0 days ago) InstallationMedia: Ubuntu-MATE 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) SourcePackage: nvidia-prime UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1620170/+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
