Ubuntu
linux package

  1. Bug #1690085
  2. Comment #609

Comment 609 for bug 1690085

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

(In reply to Borislav Petkov from comment #519)
> (In reply to Philip Rosvall from comment #518)
> > I can confirm that "idle=halt" makes both my Ryzen desktop and Ryzen
> > notebook more stable than anything else I've tried. I have not experienced
> > freezes for some days now.
>
> Can you upload dmesg from the working and non-working kernels pls?
>
> Thx.

I have only used the workaround since kernel 4.20.4, so I just booted the kernel now without and with the parameter. As can be seen in line 704 in the log without "idle=halt", we see the error "[Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)". This error does not occur when "idle=halt" is set.