On Wed, Aug 28, 2013 at 7:38 PM, Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> wrote: > 01.org forum: https://01.org/linuxgraphics/node/199 > > Slot: 00:02.0 > Class: VGA compatible controller [0300] > Vendor: Intel Corporation [8086] > Device: 2nd Generation Core Processor Family Integrated Graphics Controller [0106] > SVendor: Hewlett-Packard Company [103c] > SDevice: Device [1854] > Rev: 09 > > Reported-by: Laurent Chardon <laurent.chardon@xxxxxxxxx> > Cc: Jani Nikula <jani.nikula@xxxxxxxxx> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> All the inverted brightness machines we've seen have been gen4 and Acer/Packard Bell. I suspect there's something amiss in our backlight handling and at least for current platforms I don't want to merge quirks before we've reasonably proven that we really need them. Which means someone should show that Windows has specific code for this HP laptop first ... One thing I remember is that there's a linearization table in the vbt somewhere, maybe that does the trick. Or we simply race our driver against something in the firmware and inverting the brightness here cures that. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
