Re: [PATCH v3] Enable A20 using KBC for some MSI laptops to fix S3resume

[H. Peter Anvin]

This is a multi-part message in MIME format.On 11/05/2012 12:35 PM, Ondrej Zary wrote:
> On Friday 26 October 2012 10:56:44 Ondrej Zary wrote:
>> Some MSI laptop BIOSes are broken - INT 15h code uses port 92h to enable
>> A20 line but resume code assumes that KBC was used.
>> The laptop will not resume from S3 otherwise but powers off after a while
>> and then powers on again stuck with a blank screen.
>>
>> Fix it by enabling A20 using KBC. Affected laptop list and DMI data are
>> from bug reports at Ubuntu Launchpad.
>>
>> Also add kernel parameter to easily activate this quirk on any system.
>>
>> Only compile tested. The original patch was tested with EX600 and PR200.
>>
>> Fixes https://bugzilla.kernel.org/show_bug.cgi?id=12878
> 
> The bug was marked as RESOLVED CODE_FIX but I wonder what happened to this 
> patch. Was it applied? Or is someone working on a better way to fix this 
> problem?
> 

Sorry, I managed to forget about this.

Is there any way you could test this patch by any chance?

I would be a lot happier if this works as a general solution rather than
relying on a quirk...

	-hpa