3

Once my laptop goes to suspend, it doesn't wake up.
I can see the LED lights saying that PC is on but screen remains black.

I am really new to Ubuntu and just recently installed it.

My laptop is Lenovo z50/70

Using Ubuntu 14.10 - haven't really done any customization on it.

Zanna
  • 70,465
Sidhin S Thomas
  • 193

2 Answers2

1

The problem was caused by my Nvidia Graphic card. For some reason (driver issue maybe?) it caused freezing. Disabling the card from BIOS solved the issue.

The problem still persists; maybe changing driver will solve it. I haven't tried.

Zanna
  • 70,465
Sidhin S Thomas
  • 193
  • Can't speak for your case specifically, but in mine (Linux Mint 20.1, GTX 1060), the driver was the issue. I assumed it was the kernel, not gonna lie, but reverted from 460.<whatever, don't remember> to 450.102, and it works again. Mildly annoying – Zoe is on strike Feb 10 '21 at 09:25
0

Lenovo Z50-70, Suspend and hibernate works perfectly on Ubuntu 14.04. After a fresh install of 14.10, resume from suspend (and hibernate) always fails. I was unable to find any solution, so I completely disabled the suspend option on my laptop.

This is not a ideal solution but prevents the accidental suspend and hibernate.

Edit: June 1, 2015.

Found the solution on another forum. Technically speaking Z50-70 has two GPU's, Intel & nvidia. If nvdia is the default GPU, suspend and hibernate will have issues.

  1. Run "nvidia-settings" on terminal.
  2. In "PRIME Profiles" tab, select the GPU as "Intel" instead of "NVIDIA".
  3. Save and restart your machine.

src: http://ubuntuforums.org/showthread.php?t=2278513&highlight=z50-70

krthkj
  • 26