System freezes on restart or shutdown

[zanonmark]

Using default GRUB parameters ("quiet splash" or even "noquiet"), I'm unable to reboot or shutdown: the Plymouth circle starts spinning, then it stops and the system is frozen (altgr+sysrq won't work either).

If I use "acpi=off", I can reboot but obviously the system will not shutdown (although I can get to a point where it is safe to hold the power button for 3 seconds).

I also tried "acpi=noirq", "acpi=noapic", "acpi=nolapic", "pci=noacpi" with no success.

Ubuntu 12.04 worked well, so this is a regression.

Thanks,
MZ

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-23-generic 4.15.0-23.25
ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18
Uname: Linux 4.15.0-23-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: marco 1252 F.... pulseaudio
CurrentDesktop: XFCE
Date: Mon Jul 16 11:27:28 2018
HibernationDevice: RESUME=UUID=4045c49f-ab1a-446d-8515-a10466ea5852
InstallationDate: Installed on 2018-07-14 (1 days ago)
InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: Dell Inc. Vostro 1000
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-23-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash acpi=off vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-23-generic N/A
 linux-backports-modules-4.15.0-23-generic N/A
 linux-firmware 1.173.1
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/23/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.6.1
dmi.board.name: 0WY383
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnDellInc.:bvr2.6.1:bd08/23/2006:svnDellInc.:pnVostro1000:pvrNotSpecified:rvnDellInc.:rn0WY383:rvr:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: Vostro 1000
dmi.product.version: Not Specified
dmi.sys.vendor: Dell Inc.

[zanonmark (info-marcozanon)]

This also happens on the live cd, and in Ubuntu 18.04 too.

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

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.18 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18-rc5

[zanonmark (info-marcozanon)]

Marked as requested, as it also happens with the latest upstream kernel.

Also, booting without acpi=off takes a very long time (1 minute?) before my passphrase is asked (the logical volume is not found at first, and the system has to perform a lot of scanning). With acpi=off, the question is asked almost immediately.
I don't know whether it is related...

Thanks,
MZ

[zanonmark (info-marcozanon)]

Forgot to add: the system reboots/shutsdown fine when running in 'single' mode, i.e.: without switching to graphics mode first.

Thanks,
MZ

[zanonmark (info-marcozanon)]

Based on my comment #6, could this be related to #1782347 in any way, as this only happens when graphics is involved?
Please note however that #1782347 is about Ubuntu only, while this bug is about both Ubuntu and XUbuntu.

Thanks,
MZ