On mer., 2013-09-11 at 08:45 +0000, Matthew Garrett wrote: > On Wed, 2013-09-11 at 11:45 +0300, Jani Nikula wrote: > > > Before plunging forward, have you observed any difference between the > > boot modes? We have reports [1] that the backlight behaviour is > > different with UEFI vs. UEFI+CSM or legacy boot. So I'm wondering if the > > acpi_gbl_osi_data >= ACPI_OSI_WIN_8 check in patch 2/2 is the whole > > story. > > > > Further, if we tell the BIOS we're Windows 8 to use the tested BIOS code > > paths, what guarantees do we have of UEFI+CSM or legacy boots working? > > We have no evidence of Windows behaving differently based on the exposed > firmware type. > I do have an X230 which boots fine using pure UEFI or UEFI+CSM (and I guess I can try booting it with a grml for pure legacy), so I can do tests if needed. Regards, -- Yves-Alexis -- 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
