All,
Thank you all for the continued feedback. I'm glad the change to max performance in the energy manager produces improved results. For those just joining the discussion, I'd like to share a bit of information on the particular LCD display panel used in this, as well in some competitor models.
Yoga 2 Pro incorporates a PenTile panel, which uses a modified RGBW grid that differs from standard RGB in two ways: first, the physical pixel layout is different, and second, it uses a white sub-pixel (hence RGBW). The white sub-pixel is actually a clear pixel that allows the backlight to come through without any color filter, resulting in a brighter screen at much lower power consumption rates.
As demonstrated by temporarily changing the Lenovo Energy Management to Performance mode, the yellow brightness can be increased considerably, with the result of shifting closer to a brighter yellow, rather than the somewhat olive tint with the default settings.
Some have suggested that the default settings on other systems that incorporate this panel may appear closer to a true yellow. We compared side by side with a Samsung 940X this morning
This first photo shows the systems set at same brightness level with Lenovo default energy management settings:
The Yoga 2 Pro (on the right) produces a yellow that has a green tint and appears a shade or two more green than the Samsung (on the left). Please also note that the Samsung also displays yellow with a green tint which suggests that this is an aspect of the panel across the industry.
Then, here is the same comparison showing the previously suggested energy management setting changes.
It is now comparable to or perhaps one shade brighter than the Samsung.
Apologies for the quality of the pics - taken with my camera phone.
So, the greenish tint is an artifact of the specific LCD panel technology and is fairly consistent with other systems using the same panel. That said, it appears that it is possible to affect the displayed color, and so I believe we are exploring what optimizations we could make via a potential update.
During our testing, we also confirmed a glitch reported in this thread by Jrcbandit, that when the screen dims (due to power management) or when the system sleeps and then resumes (power management) that the default brightness levels return, necessitating an re-toggle of the settings. I would expect that to be addressed in a software update.
We'll pass along updates as available.
Best regards,
Mark