On Thu, Aug 28, 2014 at 9:41 AM, Sean V Kelley wrote:
> For what it's worth, I have a Mid-2014, Macbook Pro Retina (13inch display),
> running Archlinux with 3.16.
>
> Definitely, enable_fbc is a win for me and I do manually enable it. But I
> am still seeing what I believe to be
> a regression o
On Wed, Aug 27, 2014 at 2:17 AM, Ville Syrjälä
wrote:
>> Not that I can tell.
>> Powertop report with FBC: http://pastebin.com/5qfJKpTQ
>> Without FBC: http://pastebin.com/NaYkR4n0
>
> Seems to have gotten messed up somehow. I can't see the package c-state
> info there at all for some reas
On Tue, Aug 26, 2014 at 1:59 PM, Daniel Vetter wrote:
>> Forcing FBC with i915.enable_fbc=1 brings the idle power consumption
>> back to under 7W, however.
>> This is all on 3.15.4-ARCH-00041-gf4db98240ac2.
>
> Any significant changes in package C state as reported in powertop?
> Indeed fairly imp
On Tue, Aug 26, 2014 at 6:38 AM, Eric Rannaud wrote:
> Could the FBC commit somehow also disable RC6, or similar?
I just tried these kernel arguments with no significant effect on
power consumption (i.e. still around 11W in idle, instead of under
7W):
i915.enable_rc6=1 i
On Tue, Aug 26, 2014 at 12:17 AM, Daniel Vetter wrote:
> Sounds new. Anything interesting going on in dmesg while the on/off
> flickering goes on if you crank up output with drm.debug=0xe?
I actually get some traces. There appears to be 2 different traces
that repeat whenever the screen goes thro
On Tue, Aug 26, 2014 at 4:06 AM, Ville Syrjälä
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
[Cross-post from LKML; apologies if you've all already seen this]
Hi,
Between 3.13.5 and 3.15.4, suspend became partially broken on Macbook Pro 15
(late 2013): a few minutes after wakeup from the *second* suspend following a
fresh boot, the screen will randomly turn itself off at shorter and shor
t;
> On Mon, 25 Aug 2014, Jani Nikula wrote:
>> On Fri, 22 Aug 2014, Eric Rannaud wrote:
>>> Hi,
>>>
>>> Between 3.15.4 and 3.15.8, there was an increase in idle power consumption
>>> on
>>> Apple Macbook Pro 15 (late 2013) on a freshly booted
