On 01/21/2014 08:11 PM, Matthew Garrett wrote: > On Tue, 2014-01-21 at 13:32 +0800, Aaron Lu wrote: >> On 01/21/2014 11:17 AM, Matthew Garrett wrote: >>> We know that Windows 8 graphics drivers don't use the ACPI interface, >>> and that systems change their behaviour as a result, in some cases with >>> absolutely no way for the ACPI interface could possibly work. I haven't >>> seen any cases where that's obviously true for any non-Windows 8 >> >> Perhaps I'm not clear, I didn't mean non-Windows 8 systems will all favor >> GPU's interface, I just meant for one specific win7 laptop I could re-use >> the existing code to make the GPU's interface as the only one left. And to >> achieve this, the Win8 OSI check in acpi_video_verify_backlight_support >> has to be gone. > > We could do that, but why do we think that's the correct fix? The plan > is to remove the native list entirely and do this for all Windows 8 What do you mean by native list, systems that are Win8 based but don't work with the GPU's backlight interface? If so, it doesn't seem we have such a native list now and if we don't make use_native_backlight=1 by default, we couldn't generate such a list to start with... BTW, it doesn't seem everyone agrees with this plan. May I ask, Rafael and Daniel, what's your opinion please? We need to agree with something to move things forward. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
