Ubuntu
linux package

  1. Bug #1690085
  2. Comment #610

Comment 610 for bug 1690085

Revision history for this message
In , bp (bp-linux-kernel-bugs) wrote :

(In reply to Philip Rosvall from comment #522)
> 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.

Yeah, this is starting to look more and more like a BIOS issue on
certain mobos.

Since your machine is issuing that ACPI MWAIT error, can you apply the
debugging patch from comment #512, build a kernel, boot into it
without "idle=halt" and upload dmesg again?

Thx.