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
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Forgot to add: the system reboots/shutsdown fine when running in
'single' mode, i.e.: without switching to graphics mode first.
Thanks,
MZ
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https://bugs.launchpad.net/bugs/1781889
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
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 also happens on the live cd, and in Ubuntu 18.04 too.
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https://bugs.launchpad.net/bugs/1781889
Title:
System freezes on restart or shutdown
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