vepro

Symptoms

• Complete Freeze after:

preparing to enter ACPI S5 state
Reboot: Power Down

• seemlingly random (can successfully shutdown maybe 10 times in a row, then suddenly freezes again)
• seems to happen more often as uptime grows
• Case Fans still spin, LEDs and Lights stay on
• Monitors stay on, still react to HDMI/DP Hotplugging (unplug/plug)
• REISUB/REISUO doesn't work
• Disks are already powered off and disconnected
• USB devices (eg. keyboard unresponsive)

Since When

• After switching to Arch and flashing BIOS Firmware 7C88v18 to MSI B460M-A Pro Board
• Arch Linux is ruled out by me since it's very unlikely Userland plays a role, and already used Linux before without the problem
• Gone from linux ~6.2.10 to 6.4.8, Kernel bug unlikely

Attempted:

• Reflash 7C88v18 from a FAT32 formatted partition (USB)
• Add reboot=pci or reboot=acpi acpi=force to kernel cmdline
• run fwupd
• Stop X and wait a bit for processes to clear up (???)
• intel-ucode is installed:

~> pacman -Qi intel-ucode | head -2
Name                     : intel-ucode
Version                  : 20230613-1

• Other threads on the Internet seem to have easier reproducibility (always happening), solutions were about either kernel cmdline or outdated kernel (If I didn't see a thread with my exact problem, apologies)

Hardware Info

~> pacman -Qi nvidia | head -2
Name                     : nvidia
Version                  : 535.86.05-8

~> cat /sys/class/dmi/id/board_* 2>/dev/null
Default string
B460M-A PRO (MS-7C88)
Micro-Star International Co., Ltd.
1.0

~> LC_ALL=C lscpu | grep -i 'model name'
Model name:                      Intel(R) Core(TM) i7-10700 CPU @ 2.90GHz

~> sudo journalctl -k --grep=microcode
[...] kernel: microcode: updated early: 0xf0 -> 0xf6, date = 2022-12-26
[...] kernel: SRBDS: Mitigation: Microcode
[...] kernel: microcode: Microcode Update Driver: v2.2.

Misc

• Did I just miss something obvious?
• I don't want to go back to an outdated BIOS firmware
• lscpu, nvidia-smi and other info added if needed
• I have another device (ASUS Board, similar CPU) with similar arch linux setup (nouveau instead of propietary nvidia there), no problems on that device

This concerns a multi monitor setup with different refresh rates (e. g. 1 with 60hz and 1 with 144hz).

The text below is part of the linked article. If you have both nvidia and picom installed, check both sections.

NVIDIA (propietary)

• Open nvidia-settings
• Go to 'X Server Display Configuration'
• In the bottom right, Click on 'Advanced...' if it says 'Advanced...'
• Make sure anything regarding 'force composition pipeline' is checked off
• Make sure you selected the highest refresh rates possible. You can either select it through the settings, configure it with xrandr or with your DEs Display Settings, is applicable

picom

• Make sure to start picom with --no-vsync

Misc

If it still doesn't work, try settings these environment variables:

CLUTTER_DEFAULT_FPS=<your highest refresh rate>
__GL_SYNC_DISPLAY_DEVICE=<your highest refresh rate display>
__GL_SYNC_TO_VBLANK=0

Find the DISPLAY_DEVICE name with xrandr | grep connected

Add the text block above to /etc/environment (Tip: Use EDITOR=<your editor, if EDITOR is not set anywhere else> sudoedit instead of sudo nano or sudo vim)

-> sudoedit /etc/environment

This covers obtaining the ISO, connecting to Wi-Fi, partitioning, formatting, mounting, installing, setting up encryption and installing GRUB, in one article. Also includes some tips, like quickly mounting from install medium. Maybe this helps someone.

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