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#1 2013-05-18 10:09:21

saronno
Member
Registered: 2009-10-02
Posts: 133

ACPI Warnings SystemIO conflicts with region ..

...
I get this messages from my kernel

[    5.139190] ACPI: Requesting acpi_cpufreq
[    5.240291] mei 0000:00:16.0: setting latency timer to 64
[    5.240348] mei 0000:00:16.0: irq 44 for MSI/MSI-X
[    5.262166] acpi device:42: registered as cooling_device2
[    5.262294] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    5.262377] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input2
[    5.280422] ACPI Warning: 0x0000000000000428-0x000000000000042f SystemIO conflicts with Region \PMIO 1 (20130117/utaddress-251)
[    5.280428] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    5.280431] ACPI Warning: 0x0000000000000530-0x000000000000053f SystemIO conflicts with Region \GPR2 1 (20130117/utaddress-251)
[    5.280434] ACPI Warning: 0x0000000000000530-0x000000000000053f SystemIO conflicts with Region \GPIO 2 (20130117/utaddress-251)
[    5.280436] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    5.280437] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \GPR2 1 (20130117/utaddress-251)
[    5.280439] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \GPIO 2 (20130117/utaddress-251)
[    5.280441] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver

I wonder if it has anything to do I have a double video card. In fact, I have a discrete ATI HD5450 video card that I use with two monitor
and of course an integrated video card in the processor (a intel celeron g1610) ...
I doesn't seem to be any problem with video (I use catalyst) or xserver but it is just a bit annoying ...

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#2 2013-05-18 12:08:13

mich41
Member
Registered: 2012-06-22
Posts: 796

Re: ACPI Warnings SystemIO conflicts with region ..

No.

It's some driver being denied access to devices used by ACPI, probably SuperIO sensors or SMBus controller. If you don't need control over these devices or don't even know what they are - ignore it. If you do, booting with acpi_enforce_resources=lax will enable this driver at the cost of possible problems with ACPI-based power management.

Last edited by mich41 (2013-05-18 12:12:16)

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#3 2013-05-18 12:24:48

saronno
Member
Registered: 2009-10-02
Posts: 133

Re: ACPI Warnings SystemIO conflicts with region ..

mich41 wrote:

No.

It's some driver being denied access to devices used by ACPI, probably SuperIO sensors or SMBus controller. If you don't need control over these devices or don't even know what they are - ignore it. If you do, booting with acpi_enforce_resources=lax will enable this driver at the cost of possible problems with ACPI-based power management.

Just wondering .... what device could it use
SuperIO sensors or SMBus controller?

However thanks.

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#4 2013-12-07 06:49:17

dront78
Member
From: Moscow
Registered: 2010-11-24
Posts: 45

Re: ACPI Warnings SystemIO conflicts with region ..

the easy way to fix this shit is to

blacklist pcspkr
blacklist lpc_ich
blacklist gpio-ich

in /lib/modprobe.d

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#5 2021-01-15 14:02:04

DAC324
Member
Registered: 2020-03-12
Posts: 35

Re: ACPI Warnings SystemIO conflicts with region ..

dront78 wrote:

the easy way to fix this shit is to

blacklist pcspkr
blacklist lpc_ich
blacklist gpio-ich

in /lib/modprobe.d

Thanks a lot for that information. That helps here as well.

In addition, it is necessary to

blacklist it87

This driver throws an error similar to the ones discussed here:

[    3.104855] ACPI Warning: SystemIO range 0x0000000000000A35-0x0000000000000A36 conflicts with OpRegion 0x0000000000000A35-0x0000000000000A36 (\IP) (20200925/utaddress-204)

This bug is known since 2015.
https://bugs.launchpad.net/ubuntu/+sour … ug/1280467
https://bugzilla.kernel.org/show_bug.cgi?id=44991

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#6 2021-01-15 14:26:32

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 12,186

Re: ACPI Warnings SystemIO conflicts with region ..

It's a warning that doesn't even point to an actual issue and you are potentially breaking expected functionality by blacklisting drivers the system has determined to be potentially useful. (... Case in point, it87 is necessary for a lot of hardware sensor information, I'm not going to drop that information just to hide a warning)

Don't break your systems over warnings if they don't have an inherent effect on system stability. Warnings aren't errors. They are unlikely to be any form of issue in the context that you get them in.

In any case please don't necrobump 8 year old threads.

Closing.

Last edited by V1del (2021-01-15 14:26:45)

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