Nothing to see in the log files, nothing is logged as the issue comes
after logging to files.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1909115
Title:
ASUS Z9PE-D8 WS needs custom DSDT fix to properly shutdown (random)
Status in linux package in Ubuntu:
Confirmed
Bug description:
Running Ubuntu server 20.04.1 LTS (CLI only), after switching from
other distro (Manjaro and Artix) which present the same issue;
basically I tried the debian based, arch based and systemd free
distro.
Issue description: issuing the command "shutdown -h now" or "poweroff -f"
doesn't shutdown the system properly, the system hangs is S5.
This doesn't happen all the time, but randomly, let's say in about 30% of
cases.
This happens not only with an installed system but also with the bootable usb
installer.
How to replicate: I really don't know, it seems very random, without a
pattern.
Motherboard: ASUS Z9PE-D8 WS with bios v. 5802 (dated 2015/10/15)
CPU: 2x intel Xeon E5-2687w (SR0KG)
After trying different proposed solutions for the "hanging at
shutdown" issue (mostly by enabling/disabling things in grub and
different kernels down to 4.9) I found out that only a DSDT fix solves
the issue, and in particular in the _PTS method.
Basically this is the original part of the extracted DSDT:
Method (_PTS, 1, NotSerialized) // _PTS: Prepare To Sleep
{
If (((Arg0 == 0x04) && (OSFL () == 0x02)))
{
Sleep (0x0BB8)
}
PTS (Arg0)
DBG8 = Arg0
WAKP [Zero] = Zero
WAKP [One] = Zero
WSSB = ASSB /* \ASSB */
WOTB = AOTB /* \AOTB */
WAXB = AAXB /* \AAXB */
ASSB = Arg0
AOTB = OSFL ()
AAXB = Zero
\_SB.SLPS = One
}
The fix (or better call it workaround) includes a "do nothing" if Arg0 is
0x05 (state S5):
Method (_PTS, 1, NotSerialized)
{
If (LEqual (Arg0, 0x05)) {}
Else
{
Store (Arg0, DBG8)
If (LAnd (LEqual (Arg0, 0x04), LEqual (OSFL (), 0x02)))
{
Sleep (0x0BB8)
}
PTS (Arg0)
Store (Zero, Index (WAKP, Zero))
Store (Zero, Index (WAKP, One))
Store (ASSB, WSSB)
Store (AOTB, WOTB)
Store (AAXB, WAXB)
Store (Arg0, ASSB)
Store (OSFL (), AOTB)
Store (Zero, AAXB)
Store (One, \_SB.SLPS)
}
}
I really don't know why without injecting the DSDT fix it hangs randomly at
shutdown.
I reported the issue to the kernel bugtracker too, but it seems there's not
much movement there :D
I hope this can be fixed kernel side:
For reference, this is the link to the kernel bugtracker:
https://bugzilla.kernel.org/show_bug.cgi?id=210689
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