CPU and fans keep working in suspend mode in Ubuntu 20 on Dell Inspirion 5530

Question

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:

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

Nothing helped so far. Any help would be appreciated.

P.S. Log info:

sudo blkid: https://pastebin.com/ZqKsn152
cat /etc/fstab: https://pastebin.com/N31a3sNd
cat /etc/initramfs-tools/conf.d/resume: No such file or directory
free -h: https://pastebin.com/iU4H5Zcw
swapon -s: https://pastebin.com/d8CpWsig
sudo dmidecode -s bios-version: 1.17.1

I added an SSD, and made it the bootable device (while leaving the HDD in place and reformatting it) — MikeMarsian, Sep 28 '20 at 20:05
Edit your question and show me `sudo blkid` and `cat /etc/fstab` and `cat /etc/initramfs-tools/conf.d/resume` and `free -h` and `swapon -s`. When you're done, start comments to me with @heynnema so I get notified. — heynnema, Sep 28 '20 at 20:25
Thanks. It all looks good so far. Show me `sudo dmidecode -s bios-version`. — heynnema, Sep 28 '20 at 20:39
Go to the kingston web site and check for a firmware update. See https://www.kingston.com/unitedstates/us/support/technical/ssdmanager. Windows required. — heynnema, Sep 28 '20 at 21:15
Looks like I already got the latest version. Running `udisksctl status` I get `KINGSTON SA2000M8500G, revision: S5Z42105`. https://www.kingston.com/en/support/technical/ksm-firmware-update shows `S5Z42105` to be the latest revision — MikeMarsian, Sep 28 '20 at 22:50
Well, you've been great about responding to my questions... but I'm out of ideas... sorry. Oh wait... I just thought of one more thing... — heynnema, Sep 28 '20 at 22:55
In your BIOS, is there a setting for the disk subsystem that defines "performance" or "compatibility" or some such? — heynnema, Sep 28 '20 at 22:57

score 0 · Answer 1 · answered Oct 19 '20 at 05:49

0

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

answered Oct 19 '20 at 05:49

bioSlayer

1

I tried updating the kernel version to 5.6.19, unfortunately that didn't help – MikeMarsian Oct 19 '20 at 14:53

score 0 · Answer 2 · answered Sep 13 '22 at 08:42

0

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

answered Sep 13 '22 at 08:42

Vsevolod Avilkin

1

CPU and fans keep working in suspend mode in Ubuntu 20 on Dell Inspirion 5530

2 Answers2