On Friday 26 October 2012, H. Peter Anvin wrote: > My guess is that Windows explicitly enables A20 on resume. We should do > that too, really... with the current heavily unified realmode code it > should be easy - let me hack up a patch in the morning. Neither s3_beep nor s3_leds (this patch: https://lists.ubuntu.com/archives/kernel-team/2011-May/015621.html ) worked for me so I thing that BIOS breaks on resume before we can do anything. > Robert Hancock <hancockrwd@xxxxxxxxx> wrote: > >On 10/24/2012 02:09 PM, Alan Cox wrote: > >> On Wed, 24 Oct 2012 12:36:04 -0700 > >> > >> "H. Peter Anvin" <hpa@xxxxxxxxx> wrote: > >>> Minor concern: it should do the wait for ready before sending each > > > >command. > > > >> Can we get a command line to do this quirk too - it strikes me that > > > >if > > > >> the MSIs rely upon it then it may be something Windows always does so > >> will be useful to try on other problem machines as an experiment. > > > >I agree, one has to keep in mind the age-old question "how does Windows > > > >work?" since it surely has no such quirk. I'd say we're sometimes too > >quick to add these DMI quirks when a more general solution would be > >somehow figure out how the Linux behavior differs from what Windows is > >doing. -- 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
