disco 19.04 doesn't shutdown on an Asrock 970 Extreme 4

[J-Paul BERARD]

I have a fresh install of Ubuntu 19.04 GNOME 64 bits.
When I choose "Power Off", it closes the session screen but then it displays the red dots who scroll under Ubuntu logo and it never stop completely.
I can listen the hard disk containing my home directory which stops (the system is on a SSD).
Each time, I have to switch off the computer. I can start it again without any problem.

The command "sudo shutdown now" give the same result.
This computer had not this problem with the previous version of Ubuntu.

Proc : AMD Fx 8320
Motherboard : Asrock 970 Extreme 4
graphic card : Radeon 6850
Ram : 8Go
Ubuntu 19.04 is the only OS on the SSD system drive
/home is on a second hard drive

[Sebastien Bacher (seb128)]

Thank you for your bug report, could you add the journalctl log from a such boot?

[J-Paul BERARD (arverne)]

Thanks for your answer.
Could you tell me how to get this log file ? I have not journalctl.log file.
In var/log/journal, I have a dir with several files, about 250 MB...

[J-Paul BERARD (arverne)]

Finally, I used this command to get a journal :
journalctl -b -1 > journalExport
You will find the file down

[Sebastien Bacher (seb128)]

That's the right command, thanks!

[J-Paul BERARD (arverne)]

Hello,

One more information : I looked on the motherboard which has a "debug" display.
When I shutdown the system and the screen stay with the red dot, the motherboard display an error code : 05 = "OEM initialization before microcode loading"...
(the computer is from 2011 and the Bios updated)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Kai-Heng Feng (kaihengfeng)]

Does this happen to older Ubuntu releases?

[J-Paul BERARD (arverne)]

Never !
I had the computer since 2011 I think, and I used all the releases since this time, upgrade or fresh install.
I don't remember having this problem...
(Maybe a different problem : this last days, sometimes, Ubuntu suddenly close and start again...)

[J-Paul BERARD (arverne)]

And another interesting information :
If I use a live-cd (USB disk) with 19.04 to open a session : the problem is the same
If I use a live-cd (USB-disk) with 18.04 to open a session : the computer stop normally at the end when I remove the USB-disk and press Return !

So, it looks really to be an issue of 19.04.

[Kai-Heng Feng (kaihengfeng)]

 Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.2-rc6/

[J-Paul BERARD (arverne)]

Hello,
I didn't reach to start with this new 5.2 kernel !
I installed the 4 .deb packages for my amd64 computer without error message ; I updated Grub (and the kernel 5.2 is in the list) but when I start, in Grub, the kernel 5.2 doesn't appear !
I have uninstalled VirtualBox : no effect
I'm not used to that at all and I don't understand what to do...
Sorry.

[J-Paul BERARD (arverne)]

YES ! It works !
I reached to start with kernel 5.2 (I had a problem with Grub because of 2 versions of Ubuntu installed on 2 partitions, and it booted not with the right Grub).

So, when I boot with kernel 5.2, the computer stop normally and completely like before.
Thanks !