On 07/17/2013 11:42 PM, Felipe Contreras wrote: > On Wed, Jun 26, 2013 at 9:37 PM, Aaron Lu <aaron.lu@xxxxxxxxx> wrote: > >> Please reference a similar bug where ACPI video driver can't work for >> some thinkpad win8 laptops: >> https://bugzilla.kernel.org/show_bug.cgi?id=51231 >> >> And the proposed way to fix this issue is for all Win8 systems, the >> ACPI video backlight interface will be removed, leaving only GPU's >> backlight interface: >> https://lkml.org/lkml/2013/6/9/161 > > Thanks. I took a look at the thread and the patches, so essentially > when those patches are applied, I should expect the same behavior as > acpi_backlight=vendor, right? If so, that doesn't work correctly in > this laptop. In this laptop intel backlight works through X, but when > I set the level to 0 everything is black (it works fine in ACPI), and That sounds a bug in i915's handling of backlight to me, perhaps file a bug for that? For component, please choose Drivers/DRI-intel. > the keyboard keys don't work. I don't see why the backlight hotkey stops working, we have kept ACPI's event notification handling for Win8 systems. Worth filing a bug too :-) For components, please choose ACPI/Video. BTW, what's the situation after you try the following 3 patches: https://patchwork.kernel.org/patch/2829342/ https://patchwork.kernel.org/patch/2829344/ https://patchwork.kernel.org/patch/2829339/ Thanks, Aaron -- 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
