On Tue, Aug 26, 2014 at 4:06 AM, Ville Syrjälä <ville.syrj...@linux.intel.com> wrote: > FBC works best when the screen contents don't change. The more activity > on the screen the less effective FBC becomes. 4W sounds way too much for > FBC however. 0.4W is closer to what one might expect from FBC based on my > observations. 4W sounds more like the difference between min vs. max > display brightness to me.
That's why I'm here, because it is such a dramatic change. All measurements were taken at constant brightness (4/100) and the difference is indeed a full 4W, as reported by the battery (and seen in: powertop(1), /sys/bus/acpi/drivers/battery/PNP0C0A\:00/power_supply/BAT0/power_now, and a noticeably faster drop in battery charge over time). Could the FBC commit somehow also disable RC6, or similar? _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
