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I've been expressing issues with my ubuntu machine. whenever I suspend and close the lid and open the lid and look at the screen. It shows only a blank screen with cursor. I tried ctrl+f1 or ctrl+f7. none of them could bring back the console or GUI back. I also tried a couple of solutions online but they didn't help. How do I get it fixed? Can someone please guide me through the steps? Thanks.

I tried the following solutions: Blank screen after Sleep/Hibernate on ubuntu 18.04

I also did sudo ubuntu-drivers autoinstall but still nothing worked.

I'm on ubuntu 20.04 LTE. I disabled nvidia drivers and my system is intel 11th gen tiger lake.

I'm using 5.14.0-1027-oem kernel, So it's a HWE kernel stack. I'm not sure about any recent changes. it's been almost 2 months, I'm holding the power button to do a force shutdown. I was so annoyed by this that I have to come here and write a post about this.

I haven't switched to 5.18 or 5.15 cause wifi is not working in those kernel.

My system configuration CPU: Quad Core 11th Gen Intel Core i5-1135G7 (-MT MCP-) speed/min/max: 903/400/4200 MHz Kernel: 5.14.0-1027-oem x86_64 Up: 2h 40m Mem: 4567.3/15751.8 MiB (29.0%) Storage: 1.14 TiB (18.7% used) Procs: 350 Shell: bash 5.0.17 inxi: 3.0.38

Ashutosh Soni
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1 Answers1

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This may be more a comment than an answer, but I lack the reputation score for that.

Suspend/resume issues may have dozens of different causes, which cannot easily be told apart. You mention several candidate solutions, which will work in many cases, but not in yours. One important vector that you seem to have ignored so far is the BIOS:

  1. Make sure to install any available BIOS updates for your machine.
  2. Check the BIOS for energy saving / power management related settings, and experiment with those. For my notebook - with incidentally(?) the same CPU as yours - changing "hardware power management" from "energy saving" to "low power" solved this issue. (Whatever precisely these options are supposed to signify).

Another possible - if less likely - cause is that some piece of hardware in your system interacts badly with the suspend / resume. Try removing all non-essential pieces such as WWAN cards, or disabling hardware in the BIOS. If you achieve an effect, turn the features back on, one by one, until you can pinpoint which one is causing trouble.

Tfry
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