Re: [PATCH v3] Enable A20 using KBC for some MSI laptops to fix S3 resume

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Monday 10 December 2012 22:26:18 H. Peter Anvin wrote:
> 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...

I have a PR200 laptop for a while now so I'll try to test this patch.


-- 
Ondrej Zary
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux