I have an XPS 15 9560, something that has worked for me is the kernel parameters acpi_osi=! with acpi_osi='Windows 2009' then make the brightness control acpi_backlight=vendor

Good Luck!

** PS : You might have more chance on AskUbuntu or Reddit for an answer!

HI!

I have the same laptop and after having replaced windows 10 by ubuntu 18.04 lts I am facing the same problem with the suspend-resume.

Did you add those options to GRUB_CMDLINE_LINUX or to GRUB_CMDLINE_LINUX_DEFAULT?

Thanks a lot in advance for your help :)

Best regards,

AdT

I stumbled across this thread yesterday, as I too was plagued over this issue, This struck me when I was collecting dmesg messages from different OSs while trying to report a bug on Fedora Bugzilla. (I'm a dev there). This also works on Fedora, replace your commands accordingly.

Blacklist nouveau

As usual, it's the stupid and buggy "nouveau" driver. 18.04 is moving away from the old OST module "bbswitch". So, the kernel loads "nouveau" driver, in order to use Optimus power saving.

Fixing this:

1. First, install NVIDIA drivers. `ubuntu-drivers autoinstall` will install nvidia-390. It's substantially altered from the earlier packages.
2. Disable nvidia-fallback.service which always loads nouveau: `systemctl disable nvidia-fallback.service`
3. Add `nouveau.blacklist=1` to GRUB_CMDLINE_LINUX
4. Use bbswitch for power saving

I'm using 18.04 also without any suspend issues, but my laptop has AMD processors if that matters.

I am experencing a similar problem on the Inspiron 14 7276 after installing Ubuntu 18.04 and switching from the noveau driver to the proprietary nvidivia Xorg driver.

When enabling the NVidia mx150 driver (tested with nvidia-driver-390 as well as ver. 396) the computer works normally and the card is recognized but when closing and reopening the lid, the laptop cannot resume from suspension.

A green screen is shown with icons of my desktop all confused on the background, the mouse pointer is still there and moves but no input either from the mouse or keyboard is accepted and the only way to regain control of the computer is forced rebooting.

I tried all the above suggestions in this thread but none of them fixed the problem, is there perhaps something else I should try to solve this suspend/resume problem?

Thank you. Luca

It is the buggy nouveau driver again. That's what solved the issue for me.
Edit the file /etc/default/grub.

$ sudoedit /etc/default/grub.

Add "nouveau.modeset=0" to the line that says GRUB_CMDLINE_LINUX then press ^O to save the file and ^X to live then run.

$ sudo update-grub.

Reboot.

I followed this Video " 

https://www.youtube.com/watch?v=5nGbWE-pvIE&t=433s

and it solved the problem for me...Problem is Nvidia's drivers do not support Optimus on Linux so you have to install bumblebee to fix the problem...

I experienced this problem with my New XPS 15 9570 running Ubuntu 18.04.01 LTS. I'd suspend and the laptop would go to sleep. When I went to resume the laptop, I'd get a black screen with the cursor in the upper left, the fans would all go to full speed and the laptop would just sit there.

I followed the steps agathver laid out above and it fixed my problem

1. I already had the Nvidia drivers installed and was already using them
2. sudo systemctl disable nvidia-fallback.service
3. Edited /etc/default/grub and added the line :
    GRUB_CMDLINE_LINUX="nouveau.blacklist=1"
4. sudo update-grub
5. Restarted the laptop

Suspend and resume now work

XPS 15 9570 with Ubuntu 18.04 LTS, first I tried the Gene Wood procedure (nouveau.blacklist=1) and the suspension-resume worked only once, then I tried the Casc4 procedure (nouveau.blacklist=0) and again it worked for only once, it makes no sense! someone give me explanations?

This method worked for me. But my dmesg still showing errors.

I’m using Ubuntu 18.04.1 LTS.

However, I was thinking, Dell sells this laptop with Ubuntu, so they should have a better support for this OS... Am I wrong?