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Fresh install from net-installer amd64, KDE as Window Manager, unencrypterd boot, encrypted LVM over LUKS2, and a Win10 as dual boot.

All works fine so far, except whenever I try to logout from user, or halt / reboot - and it freezes. Interestingly, while in freezing status and mouse/beyboaard are gone (even numlock light), I can still ping the frozen computer.

I can successfully restart/poweroff when I do not desktop-login, but go remotely ssh and there do as a the very first command:

sudo systemctl poweroff

But when I do this anything on filesystem or login into GUI and there even a simple logout it freezes.

My system is a Lenovo W541 (With the old Stretch Kernel all worked fine)

lscpu |grep -i model
Model:               60
Model name:          Intel(R) Core(TM) i7-4810MQ CPU @ 2.80GHz

uname -a
Linux igor 4.19.0-8-amd64 #1 SMP Debian 4.19.98-1 (2020-01-26) x86_64 GNU/Linux

What I have done so faar:

Others seem to have similar issues -. what am I to do, I am worried, that the freezing on shutdown and then hard poweroff via 5s powerbutton could harm filessystem integrity, esp. with lvm over luks setting.

UPDATE

while freezing, the kernel is reporting: "watchdog: BUG: soft lockup - CPU#2 stuck for XXs"

tverrbjelke
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1 Answers1

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According to this try to:

  1. Disable acpi editing sudo nano /etc/default/grub appending acpi=off at the end of the string called GRUB_CMDLINE_LINUX_DEFAULT

for instance GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off"

  1. sudo update-grub to update your grub.cfg file, disabling forever acpi
  2. Black list nouveau creating a new blacklist file with sudo nano /etc/modprobe.d/blacklist-nouveau.conf with the following content
blacklist nouveau
options nouveau modeset=0

save and run 

sudo update-initramfs -u

Now kill your system as u know and after reboot logout, reboot and shutdown should work as expected

Dodo
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