Re: [PATCH v2 3/5] ACPI: Execute platform _OSC also with query bit clear

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Hi,

On Mon, Jun 07, 2021 at 08:31:10PM +0800, joeyli wrote:
> Hi Mika,
> 
> There have some machines be found on openSUSE Tumbleweed that this patch
> causes that SSDT tables can not be dynamic loaded. The symptom is that
> dmesg shows '_CPC not found' because SSDT table did not dynamic load.
> 
> [    1.149107] ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20210105/psargs-330)
> 
> Looks that the firmware didn't response OSC_SB_CPCV2_SUPPORT after
> kernel changed to new behavior. The openSUSE bug is here:
> 
> Bug 1185513 - ACPI BIOS Error after upgrade to 5.12.0-1-default 
> https://bugzilla.suse.com/show_bug.cgi?id=1185513
> 
> Could you please help to give any suggestion?

There is another one that Red Hat reported here:

https://bugzilla.kernel.org/show_bug.cgi?id=213023

The Bugzilla entry also has a patch attached [1] from Hans, can you try it
out and see if that fixes the issue?

[1] https://bugzilla.kernel.org/attachment.cgi?id=297195

Thanks!



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