Suspend not working (Ubuntu 22.04)

ventsyv

8/28/24, 3:18 AM

The machine won't wake after suspend.

This happens both when I close the lid, or when I suspend from the power off menu. As far as I can tell, the machine does go in suspend mode - the screen goes dark and built-in keyboard's backlight turns off. However, pressing buttons on the keyboard (even the built-in) or moving the mouse / touching the trackpad does not wake it up.

I don't see anything suspicious in the system log:

Sep 01 08:54:25 machine-Precision-5570 kernel: Low-power S0 idle used by default for system suspend
Sep 01 09:10:33 machine-Precision-5570 kernel: Low-power S0 idle used by default for system suspend
Sep 01 09:14:56 machine-Precision-5570 ModemManager[1261]: <info>  [sleep-monitor-systemd] system is about to suspend
Sep 01 09:14:57 machine-Precision-5570 systemd-sleep[4698]: Entering sleep state 'suspend'...
Sep 01 09:14:57 machine-Precision-5570 kernel: PM: suspend entry (s2idle)
Sep 01 09:16:17 machine-Precision-5570 kernel: Low-power S0 idle used by default for system suspend

I found some posts that claim it's due to nvidia drivers, but I don't have any proprietary drivers installed.

I checked the BIOS but don't see anything relevant.

I tried enabling the USB devices power wakeup feature, but that didn't seem to do anything.

I'm running 22.04 on Dell Precision 5570.

1 + 1

suspend

dell

22.04

ubfan1

9/1/24, 3:43 PM

Try disabling bluetooth before the suspend. I found my MSI will fail to resume if there is any bluetooth mouse activity first.

Score:0

Ubuntu

Rinzwind

9/1/24, 1:42 PM

This is a hardware error and not an error on the OS. When the system is in hibernation or suspension pressing a key needs to be picked up by the system itself. Mind that a lot of Dell machines do NOT use wake-on-keyboard. Mine does not, not even in Windows.

However, pressing buttons on the keyboard (even the built-in) or moving the mouse / touching the trackpad does not wake it up.

Make sure wake-on-keyboard is a feature of your machine.

I found this external source also with a list of supported Dell systems. I don't see a Precision 5570 on this page (but there is an Inspiron 5570).

+ 2

ventsyv

9/1/24, 1:53 PM

Thanks for the reply. Even if it's not, the power button should still wake it up - but it doesn't? I just tried it and the fan stayed on long after the screen went dark. I now suspect maybe it's not going into suspend mode despite what the logs say. What do you think?

ventsyv

9/1/24, 2:12 PM

Another issue I'm having that might be relevant: https://askubuntu.com/questions/1484374/restarting-freezes-due-to-snap

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Suspend not working (Ubuntu 22.04)

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.