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ACPI native driver creating conflicts on 18.04

Asked by leon antoniadis

After the last update to 4.15.0-24-generic it takes ages to light up.
Running "dmesg | less" i came to a note "ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver". Going back to 4.15.0.-23 the laptop stars in 25 seconds.
Please advise

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actionparsnip (andrew-woodhead666) said : 		#1

I suggest you report a bug

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Manfred Hampl (m-hampl) said : 		#2

1. The message "ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver" alone does not tell anything. It usually is just a subsequent message to the meaningful one. And in any case I doubt that this is causing the delay.

2. If you see long boot times, you should check the syslog for big gaps in the time code.

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leon antoniadis (leon-antoniadis) said : 		#3

As situation was unbearable considering it is a laptop which is on/off continuously, far from ac mains, I purged 4.....-24 and
working with 4......-23 "solved" my problem.
Thanks.

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Manfred Hampl (m-hampl) said : 		#4

Your problem perhaps was/is caused by Bug #1780062
There is already a new version of the kernel being prepared (4.15.0-26.28, already in bionic-proposed).
Hopefully this will bring boot times back to normal.