Ubuntu 19.04 suspend freeze on Dell inspiron 7373

[Carlos Cesar Caballero Diaz]

I have installed Ubuntu 19.04 in my Dell Inspiron 7373 and I am getting issues with suspend. When I lock the case or write the "systemctl suspend" command, the screen turn off, the system freeze and the laptop keeps turned on. I need to force the laptop turn off and on again. There are some cases when it suspends without issues, but most of the time it freezes.

There are some workarounds for issues like this one but they are mostly for laptops using nvidia graphics.

I am not sure how to provide debug information about this issue, but I can give it if someone tells me how to do it.

"lsb_release -rd" output:
Description: Ubuntu 19.04
Release: 19.04

[Ubuntu Foundations Team Bug Bot (crichton)]

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[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1832144

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[Leonardo Vidal (lvidal1)]

I am facing the same issue on Dell Inspiron 7373. When I suspend my machine, the screen freezes. I can not use the keyboard nor the touchpad nor any USB device. I have to force to shut down and start again.
Let me know if I can help with information on my environment to feed this issue. Thanks!

[Kai-Heng Feng (kaihengfeng)]

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.3-rc4/

[Carlos Cesar Caballero Diaz (cccaballero)]

Hi kaihengfeng, thanks for your help, I had installed the last mainline version:

    Linux cccaballero-Inspiron-7373 5.3.0-050300rc4-generic #201908111734 SMP Sun Aug 11 21:37:12 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

And this is what happened:

- first boot after the kernel was installed:
I click suspend and it works ok, the device entered in suspend state, and recovered ok.
Afther the first successful suspension, I tried to suspend again and the device rebooted

- second boot after the kernel was installed:
I click suspend and it works ok, the device entered in suspend state, and recovered ok.
Afther the first successful suspension, I tried to suspend again and the device freezed just like in the bug description.

- third boot after the kernel was installed:
I click suspend and the device freezed just like in the bug description.

[Kai-Heng Feng (kaihengfeng)]

Ok, please attach `journalctl -k -b -1` once the issue happens.

[Carlos Cesar Caballero Diaz (cccaballero)]

Hi, I am attaching the `journalctl -k -b -1` output

[Kai-Heng Feng (kaihengfeng)]

I don't see any suspend attempt in the log.
Please collect the log in the next boot after the issue happened.

[Carlos Cesar Caballero Diaz (cccaballero)]

Hi kaihengfeng, I could swear I sent the log right after a crash. Anyway, I attach another one (the first boot just after a crash)

[Kai-Heng Feng (kaihengfeng)]

In general we should find "PM: suspend entry (deep)" when attempting to suspend but it's not in the log. So the system may freeze before that.

Since nothing useful was logged, I don't think I am capable of debugging this. If you want to take the adventure, this can be a good start:
https://01.org/linuxgraphics/documentation/development/how-debug-suspend-resume-issues

[Sean Yang (seanyang0813)]

Have you tried updating your bios? I had the issue with a dell inspiron 7370 with a ssd and dual boot windows/ubuntu 19.04.I had the issue. It works most of the times now. However, sometimes it still breaks. From the debug guide, I tried skipping bios and it seemed to work fine. So I updated the bios.It seems like updating the bios helped with the issue for me.

[Sean Yang (seanyang0813)]

Also another thing I noticed was that if the suspend fails and I force shut it down, I will have to reboot after getting back into ubuntu or the suspend will keep failing

[Sean Yang (seanyang0813)]

It broke again today :( Maybe the the solution earlier didn't work

[Carlos Cesar Caballero Diaz (cccaballero)]

Thanks guys, I will take a look at @kaihengfeng link for trying to debug and search for some clues

[Carlos Cesar Caballero Diaz (cccaballero)]

Ok, I have installed the rc7 of the kernel v5.3, and if I enter in the root prompt of the recovery mode, and type "systemctl suspend" the laptop seems to suspend properly (the power button led turns off and the fan stop) but then it freeze recovering.

[Carlos Cesar Caballero Diaz (cccaballero)]

Ok, I have found a new clue, I have disabled the suspension in the energy configuration, but when the screen goes off the system equally freeze, so, or the system is ignoring the config options and is still suspending (I don't think so but is a possibility), or the crash is not specific of the suspend process and is more related with the screen off process or video driver.

[Emilio (emilio96)]

I have the same issue, any update about it?
I know peoples that sent his pc to Dell, because they thought that was an hardware problem, but they haven't resolved this problem yet (also after recived pc under warrenty).
I don't know if that information coult be useful.

[Carlos Cesar Caballero Diaz (cccaballero)]

@emilio96 I think it's not a hardware problem, I just installed a xenial based distribution and suspend worked just fine in the clean installation before installing any updates, so the issue has being introduced in some update. It doesn't seem to be the kernel, because after the update I have started with the initial kernel and the problem remains. It's maybe related with xorg or video controllers. I will make a clean install again and start updating only some packages to find which one introduced the issue.

[Carlos Cesar Caballero Diaz (cccaballero)]

Update: this also affects Ubuntu 20.04

[Carlos Cesar Caballero Diaz (cccaballero)]

The issue is definitely not in the suspension, the freeze is happening when the screen is turned off. It can be reproduced using: "xset dpms force off"

[Carlos Cesar Caballero Diaz (cccaballero)]

As this is not a suspend issue I have filled this new bug report https://bugs.launchpad.net/ubuntu/+bug/1878007