Ubuntu
linux package

  1. Bug #1690085
  2. Comment #719

Comment 719 for bug 1690085

Revision history for this message
In , raulvior.bcn (raulvior.bcn-linux-kernel-bugs) wrote :

My system reboots randomly, mostly at idle. I have tried the 'powersupply idle' UEFI option, but it didn't work. I have changed motherboard, RAM and PSU, but it still reboots/crashes, doesn't matter if it's overclocked or not. The system is not reliable.

Currently an ASUS CROSSHAIR VI HERO, BIOS 7201 07/12/2019.
The previous motherboard was a Gigabyte Aorus Ultra Gaming X470 with BIOS F40.

Now I'm waiting for the next reboot (if it happens) after disabling C6 global states in UEFI (core C6 as per zenstates.py). The next step would be to flash a new BIOS file containing AGESA 1.0.0.3ABB. Comment https://bugzilla.kernel.org/show_bug.cgi?id=196683#c623 reports no more stability problems with a BIOS providing that AGESA version.

Has anyone used the xHCI debug capability to at least know what happens just before the crash/reboot?
https://www.kernel.org/doc/html/latest/driver-api/usb/usb3-debug-port.html

AFAIK, the chipset should support DbC, as the file "dbc" is listed under the xHCI device node in sysfs and echo "enable" to it.