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Ubuntu 20.04 won't wake up from sleep
Issue: Whenever laptop suspends (either due to closed lid or due to black screen for certain time), I cannot wake it up. Laptop does not respond to key strokes and power button clicks. As a result I always have to hold power button to shut it down and then power it up again.

System:
-Model: Dell Inspiron 15 3593
-Processor: Intel® Core™ i5-1035G1 CPU @ 1.00GHz × 8
-Graphics: Mesa Intel® UHD Graphics (ICL GT1)
-RAM: 16GB DDR4
-Storage: 512GB SSD + 1TB HDD
-OS: Ubuntu 20.04 LTS 64bit

Extra info: There are no drivers in the additional drivers tab and there are not updates. Also I have added the repository of dell for focal: http://dell.archive.canonical.com/updates focal-dell .

System logs: https://pastebin.com/71pnhiaZ

Thank you in advance!

Update:
-Tried GRUB_CMD_LINUX="nouveau.modeset=0" in grub config and it didn't work.
-Tried GRUB_CMDLINE_LINUX="nouveau.blacklist=1" in grub config and it didn't work.
-I switched to an old kernel version: "5.0.0-1070-oem-osp1" and made it default choice because under this kernel the issue is resolved. I used this guide for changing default kernel: How can I boot with an older kernel version? . Thank you @B.Tanner for the idea. I really hope that it will be fixed for newer Kernels in the future.
-Reported bug here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1909005

6
  • On my Inspiron 17 3793 (sounds like it might be similar!) I have to use the original 20.04 kernel for wakeup-from-suspend to work, see askubuntu.com/questions/1292365/….
    – B.Tanner
    Dec 7 '20 at 14:52
  • Thank you @B.Tanner for sharing this idea! I booted with an old kernel version and it seems to work fine. I used this thread to make the old kernel default: askubuntu.com/questions/82140/…. Dec 9 '20 at 11:10
  • great, I'm glad it's not just me :-) it means it might get fixed. I have been running the old kernel fine for a while now, suspending all the time. I have had new kernels come through with apt update but they did not replace the old kernel so it is still good. Of course it's not ideal having to run an old kernel without security updates etc but it'll do for me for the time being.
    – B.Tanner
    Dec 9 '20 at 16:35
  • @B.Tanner I have reported this bug here: bugs.launchpad.net/ubuntu/+source/linux/+bug/1909005 . Please click the "this bug affects me button" and if we are lucky someone may see into it. Dec 22 '20 at 20:44
  • thanks; have done so and added some new observations on symptoms
    – B.Tanner
    Dec 22 '20 at 23:06
4

With Dell notebooks I generally configure them like this:

  1. Open the terminal
  2. Install the necessary drivers with ubuntu-drivers autoinstall
  3. Disable the fallback service with sudo systemctl disable nvidia-fallback.service
  4. Then edit /etc/default/grub and add the line: GRUB_CMDLINE_LINUX="nouveau.blacklist=1"
  5. Update Grub with: sudo update-grub
  6. Reboot

With this my colleagues can suspend/hibernate-resume without too many issues … though there are occasional hiccups for people who suspend for 4+ days.

Hope this works for you, too 👍🏻

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  • I tried it all and it didn't work. Dec 7 '20 at 15:12
  • Are there any errors in the system log? If so, could you update your question to include them? This might make it easier to find the best solution.
    – user1091774
    Dec 7 '20 at 15:31
  • Thanks for pointing out. I have just uploaded system logs. Dec 7 '20 at 16:11
  • Also i would like to point out that there was no nvidia-fallback.service. Dec 7 '20 at 18:06
  • +1 step 4 and 5 was all that was needed for me, steps 2 and 3 were not needed (no updates and no service)
    – ljden
    Dec 18 '20 at 22:42

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