"ACPI unsupported"

[Zhou]

While I'm using Ubuntu Server version on my laptop(HP omen 15, CPU:i5-8300H,GPU:GTX1050Ti), it always says "[ time.time] acpi INT3400:00: Unsupported event [0x86]",
In Ubuntu Desktop version, after I turn on my computer, it'll not going on but stay at a screen and says "[ time.time] acpi INT3400:00: Unsupported event [0x86]"

[Zhou (resbi)]

After I turn off the powersupply of my laptop, the massage stopped.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1786906

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.18 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.3

[MrUser (unknownubuntu)]

I have the same problem after upgrade to ubuntu Ubuntu 18.04.1 LTS.

4.15.0-34-generic #37-Ubuntu SMP Mon Aug 27 15:21:48 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

[ 1979.725487] acpi INT3400:00: Unsupported event [0x86]
[ 2252.129141] acpi INT3400:00: Unsupported event [0x86]
[ 2253.853174] acpi INT3400:00: Unsupported event [0x86]

[Fábio Carvalho (fmac)]

I have the 15-dc0015np Omen by Hp and using the Ubuntu 18.04, this issue appears when the battery is full and the charge is pluged. With the kernel 4.18 this bugs dissapear, but another one appears like this "Namespace lookup failure, AE_NOT_FOUND". I have tested all grub options and doing acpi=off works, but obviously I lose all acpi function, like reboot or shutdown.
Regards

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[David McNeill (davemc)]

The warning is generated by this kernel patch.

https://patchwork.kernel.org/patch/10057993/

"Some BIOS implementations route ACPI codes other than 0x83 [in this case
0x86] to INT3400 [thermal] device. Ignore these ACPI notification codes because the
INT3400 driver does not handle them."

Also affects Lenovo Tablet 20L4