Symptom:

The system freezes anywhere from two minutes to an hour after boot, then spontaneously reboots about ten seconds later. It doesn't matter if the system is sitting at the login screen, idle at a desktop, watching a video, etc. Temperature readings are normal leading up to the freeze+reboot.

I thought that implied a memory issue, but I've tried reseating modules, swapping slots, increasing DRAM voltage, etc. Threads on Ryzen and the Aorus motherboard sent me down rabbit holes and I've been toggling c-states off, increasing idle DRAM power, etc. No joy.

Note that this AMD Ryzen 5 3600 is not a defective CPU part; I swapped it with AMD via an RMA exchange and saw no difference! (When I install an AMD Ryzen 3400G for the CPU the system is rock solid. However, I can't use that CPU/APU long-term for this system.)

As much information as you can stand follows. Please let me know if I've missed anything which might help further diagnose what's wrong.

I am weeks of precious time into trying to get this build stable. At this point I feel like I've tried everything except swinging a dead chicken over my head. Please help me find the root cause! I'm at my wit's end and feeling very discouraged. :(

Short list of (potentially) relevant other threads:

• kernel - Ubuntu server 20.04 Ryzen 7 3700X freezes
• AMD Ryzen 5 3600 + Ubuntu 20.04 problems
• https://wiki.gentoo.org/wiki/Ryzen#Random_reboots_with_mce_events

Hardware

• Gigabyte x570 Aorus Elite motherboard (UEFI Versions: F11 or F20)
• AMD Ryzen 5 3600 6-Core Processor
• 16GB Corsair Vengeance LPX memory (DDR4 2x8GB 3200Mhz)
• MSI GeForce GTX 970 GAMING 4G
  • 08:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM204 [GeForce GTX 970] [10de:13c2] (rev a1)

Pic of main components

Things I've tried with no change

• Tested the memory exhaustively (overnight, no problems detected)
• Reseating memory
• Swapping memory to the opposite memory bank
• Swapping memory sticks within the same bank
• Swapping out the CPU via RMA with AMD
• Different UEFI versions (F11 and F20)

Errors reported at boot typically look like this:

sudo journalctl | grep -i "hardware err"

Jul 13 17:28:36 obelisk-ubuntu kernel: mce: [Hardware Error]: Machine check events logged

Jul 13 17:28:36 obelisk-ubuntu kernel: mce: [Hardware Error]: CPU 2: Machine Check: 0 Bank 5: bea0000000000108

Jul 13 17:28:36 obelisk-ubuntu kernel: mce: [Hardware Error]: TSC 0 ADDR 1ffff87930eee MISC d012000100000000 SYND 4d000000 IPID 500b000000000

Jul 13 17:28:36 obelisk-ubuntu kernel: mce: [Hardware Error]: PROCESSOR 2:870f10 TIME 1594686497 SOCKET 0 APIC 4 microcode 8701013

Jul 13 20:06:36 obelisk-ubuntu kernel: mce: [Hardware Error]: Machine check events logged

Jul 13 20:06:36 obelisk-ubuntu kernel: mce: [Hardware Error]: CPU 4: Machine Check: 0 Bank 5: bea0000000000108

Jul 13 20:06:36 obelisk-ubuntu kernel: mce: [Hardware Error]: TSC 0 ADDR 1ffffbbf30eee MISC d012000100000000 SYND 4d000000 IPID 500b000000000

Jul 13 20:06:36 obelisk-ubuntu kernel: mce: [Hardware Error]: PROCESSOR 2:870f10 TIME 1594695977 SOCKET 0 APIC a microcode 8701021

Jul 15 16:57:44 obelisk-ubuntu kernel: mce: [Hardware Error]: Machine check events logged

Jul 15 16:57:44 obelisk-ubuntu kernel: mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 5: bea0000000000108

Jul 15 16:57:44 obelisk-ubuntu kernel: mce: [Hardware Error]: TSC 0 ADDR 1ffff89330eee MISC d012000100000000 SYND 4d000000 IPID 500b000000000

Jul 15 16:57:44 obelisk-ubuntu kernel: mce: [Hardware Error]: PROCESSOR 2:870f10 TIME 1594857445 SOCKET 0 APIC 1 microcode 8701021

More:

• Hardware Error example 1
• Hardware Error example 2

UEFI settings

The settings in the picture below are referring to F20, the most recent stable UEFI release.

• minimal UEFI settings
• UEFI settings, continued

Things I've tried with no change (note NO overclocking of any sort)

• Every version of Gigabyte's UEFI between F11 and F20 at "optimized default" settings
• Increasing core DRAM voltage to 1.35V
• Many of the settings below/pictured toggled in one direction or another:
  • CPU Clock Ratio: Auto (36.00)
  • CPU Clock Control: Auto (100.00MHz)
  • Extreme Memory Profile (X.M.P): Disabled
  • CPU Vcore: Auto
  • CPU Vcore Loadline Calibration: Auto
  • CSM Support: Enabled
  • SMT Mode: Disabled
  • Power Supply Idle Control: Typical Current Idle
  • IOMMU: Enabled
  • SVM Mode: Enabled
  • ACS Enabled: Auto
  • Enable AER Cap: Auto
  • Global C-state Control: Disabled
  • DRAM Power Options > Power Down Enable: Disabled

Software

Ubuntu 20.04 LTS

$ uname -a 
Kernel: Linux obelisk-ubuntu 5.4.0-40-generic #44-Ubuntu SMP Tue Jun 23 00:01:04 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

$ grep GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash atkbd.reset=1 i8042.reset pci=assign-busses apicmaintimer idle=poll reboot=cold,hard processor.max_cstate=1 rcu_nocbs=0-11"

I have also tried installing the ZenStates package and setting it to disable C6.

Here's a gist with everything else I think you might ask for.

I have a headset that is connected to rear inputs. Speakers work good, but microphone captures every sound from system, for instance discord captures firefox and MS Teams sounds.

I've tried doing sudo alsactl restore. It lowered my sound a little, but it still comes through microphone.

I've also tried to do some work in pavucontrol. I have two devices listed as Playback:

• WEBRTC VoiceEngine
• teams-for-linux (only when I use MS Teams).

Recording devices are:

• Chrome input (don't know what it is)
• WEBRTC VoiceEngine

I have also disabled Loopback in AlsaMixer. Rear mic level is 100% with 0% boost.

Generally the microphone is working very well, but the main issue is that system sounds are also captured.

Motherboard is Gigabyte B365M D3H.

I just installed Ubuntu (20.04) on my new system (Ryzen 3600 with Gigabyte B450 Aorus M), and my system simply won't shutdown.

When I issue a shutdown (either from GUI, shutdown command or systemctl poweroff command), the system will shutdown, and start again after a couple seconds.

When I issue a "suspend" via systemctl, the screens turns off, but the fans are still running.

On Windows 10, I face no such problem.

There seems to be some incompatibility between Ubuntu and my hardware, but I have no idea how to go and troubleshoot this.

Could anyone please help me?

I wanted to use ubuntu with the nvidia driver on my new computer but as soon as I start to use the proprietary nvidia driver everything on the screen freeze very briefly every 500 ms. I noticed when I switch to tty that the command line is flickering.

My config :

• CPU : Ryzen 7 2700x
• GPU : GTX 1070
• RAM : 16 Gb (Overclocked to 3200 MHz)
• STORAGE :
  • / on a M.2
  • /home on a Old Hard drive

output of " lspci -k | grep -EA3 '3D|Display|VGA' " :

0a:00.0 VGA compatible controller: NVIDIA Corporation GP104 [GeForce GTX 1070] (rev a1)
Subsystem: Gigabyte Technology Co., Ltd GP104 [GeForce GTX 1070]
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia

I tried (with 0 effect) :

• switching distro : pop os (with preinstalled nvidia driver), manjaro, debian, linux mint
• installing driver using different method : (with the .run, using graphical-driver ppa, driver manager)
• installing different driver ( 340 - 390 - 435 - 440 )

• disabling/enabling :

  • Sync to VBlank

  • Allow Flipping

  • Force Full Composition Pipeline

  • nvidia "Timer" : Thermal monitor, powerMinimizer monitor, Memory Used

• Changing monitor frequency both in nvidia-setting and ubundu display settings

I tried Windows 10 with the latest nvidia driver and it works well. Thank you in advance for your help.

I have a GC-titan ridge card v1, installed and configured on my Lenovo Thinkstation P720. It is working fine in windows 10.

Unfortunately I can't seem to get it working on my Ubuntu installation. Tried it with few thunderbolt devices - Raid and USB-C drives and none are recognized.

The closest I have to see something is by using tbtadm where I get:

Controller 0
    └─ Details:
        ├─ Name: GC-TITAN RIDGE, GIGABYTE
        └─ Security level: SL1 (user)

I guess it is recognizing the card, but none of the devices attached to it.

If I run lspci -tv I also get the following:

 +-[0000:85]-+-00.0-[86-8b]--+-[0000:8b]---00.0  Intel Corporation JHL7540 Thunderbolt 3 NHI [Titan Ridge 4C 2018]
 |           |               +-[0000:89]---00.0  Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018]
 |           |               +-[0000:87]-+-00.0  Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018]
 |           |               |           +-01.0  Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018]
 |           |               |           +-02.0  Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018]
 |           |               |           \-04.0  Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018]
 |           |               \-[0000:86]---00.0-[00]--

Can anyone help me? Alternatively, I could also invest on a new PCIE card if I could only find one that is compatible with Ubuntu.

Thanks in advance,