Ubuntu
linux package

  1. Bug #1774950
  2. Comment #119

Comment 119 for bug 1774950

Revision history for this message
/tony/dev/null (tony-dev) wrote :

I tried `v4.14.0-041400-generic` kernel, when I close & open lid it doesnt hang at all.
I left lid closed for hours & it woke up like charm.

But when I checked `/var/log/syslog` & `/var/log/kern.log` there was no text about suspending.
Not even single line was printed.

So I think its not entering suspend mode at all, but manages to turn off the screen & backlight.

Clicking suspend button or entering `sudo systemctl suspend` enters suspend mode & laptop gets stuck. holding power button is the only way to get back.

The `syslog` shows text related to suspending, here :
```
Feb 13 19:48:54 pc systemd[1]: Reached target Sleep.
Feb 13 19:48:54 pc systemd[1]: Starting Suspend...
Feb 13 19:48:54 pc systemd-sleep[2788]: Suspending system...
Feb 13 19:48:54 pc kernel: [ 6678.873054] PM: suspend entry (deep)
```

I tired another version `4.14.40-041440-generic` & closing lid enters suspend mode which causes hanging.

It seems `v4.14.0-041400-generic` is only one who doesn't have this problem.

If you want me to test any other version of kernel, feel free to ask.