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After adding an SSD to my Dell Inspirion 5530, installing Ubuntu 20 on it and booting from it, suspend doesn't seem to work anymore. Either closing the lid, or running sudo systemctl susped would result in screen and keyboard going blank, but the fans noticeably keep working and the laptop keeps being warm.

I tried the following without success:

  1. Updated /etc/systemd/logind.conf values to suspend per this
  2. Disabled "Wireless Radio Control", "Trusted Execution" and "Intel Software Guard Extensions" in BIOS per this
  3. Upgraded kernel to 5.6.19 per this

Nothing helped so far. Any help would be appreciated.

P.S. Log info:

MikeMarsian
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3 Answers3

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This seems to be related to a kernel version that needs updating as answered in this thread

bioSlayer
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I would check the BIOS settings. I had such problem because in BIOS I had ACPI suspend type: suspend disabled

Vsevolod Avilkin
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I have checked tens of pages and forums about this same problem I was having on a dell precision 5480 with Ubuntu 22.04. Nothing worked except the simple following procedure, I hope this can help at least one person since as a developer working both from office and home it is really annoying:

  • Set /etc/systemd/logind.conf file as follows so the laptop goes to "suspend" mode when closing lid:
HandleLidSwitch=suspend
HandleLidSwitchExternalPower=suspend
HandleLidSwitchDocked=ignore
  • Reboot and open bios
  • Under "power" section, enable the "block sleep" option, which seems to correspond to S3 sleep
  • Restart computer

Under this configuration, when I close lid or manually suspend the computer, the fan spins slowly for about 20/30 seconds before totally shutting down. Before that, it was starting to spin pretty fast when going to suspend mode and never stopped

Scrimbibete
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  • 1