bill-auger wrote:

are you using openRC - is you problem anything like issue #1630 ?

I use systemD. It seems similar in that I can also shutdown with 4.9.70-gnu-1-lts

did this problem begin after updating the LTS kernel ?

Yes

did you have this problem with the previous LTS kernel ?

No, if previous means 4.9.70-gnu-1-lts

https://labs.parabola.nu/issues/1630

Thanks. I use cryptsetup. I have never been able to restore after suspension (if that is useful).

Any kernel update shows something similar to this as the last line after trying to shut down or reboot:
kvm: hardware virtualization

Megver83 wrote:

I'll mark this as "forwarded upstream" but in fact it's continuing on #1630

Solved! Call me crazy, but I think that my two issues (this, and https://labs.parabola.nu/issues/1819#note-18, https://labs.parabola.nu/issues/1750?issue_count=267&issue_position=46&next_issue_id=1749&prev_issue_id=1752#note-7) were related.

I don't know if anything of what I did had to do with the solution, but (this took months of trial and error):

1. Install my old backup (some version of the MATE Desktop live ISO updated to linux-libre 4.13.13 <-- lucky number!) with GPT and LUKS (/boot partition without encryption and esp partition mounted on /boot/efi)

# Format a FAT32 partition for efi with 550 MB (see archlinux wiki), an EXT4 boot partition and a raw partition for LUKS
parted -a optimal /dev/sda
> mklabel gpt
> mkpart primary fat32 0% 550MB
> name 1 efi
> set 1 esp
> mkpart primary 550MB 
> name 2 boot
> mkpart primary <550MB + BootPartitionSize> 100%
> name 3 crypt

# Encrypt a partition (/dev/sda3), activate it, make it LVM and create 3 logical partitions (one for the OS, the other one for your personal use and the other one for swap space)
cryptsetup luksFormat <your options -s (size) -h (hash) -c (cipher) --iter-time (decryption time)> /dev/sda3
cryptsetup luksOpen /dev/sda3 cryptpart  # cryptpart can be changed here and in the next step if you want
pvcreate /dev/mapper/cryptpart
vgcreate cryptovol /dev/sda3 # cryptovol will go into your configuration (/etc/default/grub), change it here and there if you want
lvcreate -L <size1 in GiB>GiB -n Main cryptolvm  # Main, Home and Swap: for fstab
lvcreate -L <size2 in GiB>GiB -n Swap cryptolvm  # ~1.5 of your RAM should be fine
lvcreate -L <size3 in GiB>GiB -n Home cryptolvm  # consider -l 100%Free

# Format
vgchange -ay cryptolvm
mkswap -L "Swap" /dev/cryptolvm/Swap  # The "Swap" (after -L) here is irrelevant
swapon /dev/cryptolvm/Swap
for i in Main Home Swap; do mkfs.ext4 -L "$i" /dev/"$i"; done

1. Back-up your system
   If you have the time and disk space, create a virtual disk and a separate partition (besides Main) where you can test things (virtual machines don't always behave in the same way as the hosts). I am assuming that you had a working installation of an old system. Copy the contents of your old system with a Live ISO (USB) into the virtual image or the separate partition. If EFI or GPT is needed, look for qemu-img create -f qcow `file' `size'; modprobe nbd max_part=`n'; qemu-nbd --connect; qemu -enable-kvm -drive file=`file'; pacman -Ql ovmf (/usr/share/ovmf/x64/OVMF_VARS.fd) blog.system76.com/post/139138591598; qemu -drive if=pflash,format=raw, etc.

1. Clean the boot partition
   My configuration had a separate partition for testing, and I had to make sure that the boot partition was clear (make sure that you have a file to reinstall the linux kernel or a connection to Internet).
   

   # Create 
   umount --recursive /boot/
   rm -fr /boot
   mkdir /boot/
   mount /dev/sda2 /boot/
   rm -fr /boot/*
   mkdir /boot/efi
   mount /dev/sda1 /boot/efi
   

1. Prepare the encrypted boot
   Modify the line
   

   GRUB_CMDLINE_LINUX_DEFAULT="..." 
   

   
   to have this
   

   GRUB_CMDLINE_LINUX_DEFAULT="cryptdevice=/dev/sda3:cryptolvm resume=/dev/mapper/cyptolvm-Swap ..." 
   

Include keyboard block keymap encrypt lvm2 before filesystems and autodetect in the HOOKS of /etc/mkinitcpio.conf (example):

HOOKS="base udev keyboard block keymap encrypt lvm2 filesystems autodetect modconf fsck" 

Generate a proper /etc/fstab (with genfstab -p / >> /etc/fstab or manually)

/dev/cryptolvm/Main / ext4 rw,relatime,data=ordered 0 1
/dev/cryptolvm/Home /home/<your user>/ ext4 rw,relatime,data=ordered 0 2
/dev/mapper/cryptolvm-Swap none swap defaults 0 2
/dev/sda2 /boot ext4 rw,relatime,data=ordered 0 2
/dev/sda3 /boot/efi vfat rw,relatime,errors=remount-ro 0 2

I don't know if this had to do with it, but my computer has a 16:9 aspect ratio, and I changed the mode in /etc/default/grub:

GRUB_GFXMODE="1280x720" 
GRUB_GFXPAYLOAD_LINUX="keep" 

1. Update the system
   

   # optional: rm -fr /var/lib/pacman/db.lck
   pacman -Rnucs libxfont
   pacman -S libxfont2
   pacman -Sy parabola-keyring archlinux-keyring
   pacman-key --refresh-keys
   pacman -Syu --noconfirm
   

My computer has an AMD video card which gets broken by amdgpu. I need to remove it (will create a bug report):

pacman -Rnucs xf86-video-amdgpu
sed 's/\(MODULES[[:space:]]*=[[:space:]]*[("].*\)/amdgpu\(.*\)-\1\2-g' /etc/mkinitcpio.conf  # remove amdgpu from mkinitcpio.conf (MODULES = "...amdgpu..." --> MODULES = "... ...")

1. Get rid of-- and reinstall lightdm
   

   # Manually CTRL + ALT + F2 to login into a virtual console (login with your credentials)
   systemctl stop lightdm
   ps aux | grep lightdm  # get any running instance
   top  # just to make sure that it's not hanging around
   kill -30 <any lightdm related process>
   pacman -Rnucs lightdm lightdm-gtk-greeter lightdm-gtk-greeter-settings
   pacman -U /var/cache/pacman/pkg/linux-libre-4.17.2*  # reinstall any kernel you want (just to make sure)
   pacman -S lightdm lightdm-gtk-greeter lightdm-gtk-greeter-settings efibootmgr
   

1. Reinstall the bootloader
   

   grub-install --target=x86_64-efi --efi-directory=/boot/efi --recheck  # --boot-directory=/boot automatically; the --bootloader-id=parabola
   grub-mkconfig -o /boot/grub/grub.cfg
   

1. Reboot
   If everything went well, back-up your configuration:
   

   cp -a /boot /boot-bak
   parted /dev/sda unit s p free > /boot-bak/partitions.txt
   cp -a /etc/default/grub /boot-bak/grub.bak
   cp -a /etc/fstab /boot-bak/fstab.bak
   cp -a /etc/mkinitcpio.conf /boot-bak/mkinitcpio.conf
   

I nailed it down to this:
amdgpu is breaking my installation. If I remove it from mkinitcpio.conf (MODULES) and run pacman -Rnucs xf86-video-amdgpu, I can boot and shutdown