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Since today Ubuntu 20.04.1 LTS stopped waking up after being suspended by the closing of my laptop's lid, just showing a blank screen. I've tried lots of differents solutions, from modifying some GRUB arguments values to changing lid behavior on systemd's logind.conf file, but none of them seemed to work.

Then I remembered that I updated Linux kernel version 5.4.0.56 earlier today, so I checked to see if the same problem ocurred with version 5.4.0.54. And well, it didn't, with version 5.4.0.54 suspension seeming to work properly still, given that the notebook woken up correctly and that I was able to have access to my laptop again after logging in.

For that I ask how could I report a Linux Kernel issue to its developers, because I'm quite convinced that this a kernel related issue, given that changing the kernel version used solved this issue.

Rafael Santos
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  • You can report a bug to LaunchPad. See: https://askubuntu.com/questions/5121/how-do-i-report-a-bug I believe it would be ubuntu-bug linux-headers-5.4.0-56-generic to file the bug. – Terrance Dec 05 '20 at 02:52
  • Sorry, it would be ubuntu-bug linux-image-5.4.0-56-generic to file the bug for the kernel, not the headers file. My bad! – Terrance Dec 05 '20 at 03:00
  • Thanks man! I'll try to report this bug as soon as I can. – Rafael Santos Dec 05 '20 at 05:34

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